simplified setup

When running these samples for the first time,
it is necessary to install the cds binaries globally.

Co-authored-by: Christian Georgi <chgeo@users.noreply.github.com>
Co-authored-by: Daniel Hutzel <daniel.hutzel@sap.com>

.eslintrc

@@ -1,9 +1,11 @@
 {
     "extends": "eslint:recommended",
     "env": {
+        "browser": true,
         "node": true,
         "es6": true,
-        "jest": true
+        "jest": true,
+        "mocha": true
     },
     "parserOptions": {
         "ecmaVersion": 2018
@@ -19,6 +21,7 @@
     },
     "rules": {
         "no-console": "off",
-        "require-atomic-updates": "off"
+        "require-atomic-updates": "off",
+        "require-await":"warn"
     }
-}
+}

.github/ISSUE_TEMPLATE/question--feedback-or-bug-.md

@@ -0,0 +1,10 @@
+---
+name: This channel is CLOSED. 
+about: Use our community at  https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Please use our community on https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce

.github/workflows/node.js.yml

@@ -0,0 +1,28 @@
+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm test

.gitignore

@@ -13,3 +13,5 @@ target/
 connection.properties
 default-env.json
 packages/messageBox
+reviews/msg-box
+reviews/db/test.db

.npmrc

@@ -1 +0,0 @@
-@sap:registry=https://npm.sap.com

.registry/server.js

@@ -0,0 +1,71 @@
+const { exec } = require ('child_process')
+const express = require ('express')
+const fs = require ('fs')
+const app = express()
+
+const { PORT=4444 } = process.env
+const [,,port=PORT] = process.argv
+
+app.use('/-/:tarball', (req,res,next) => {
+  const url = decodeURIComponent(req.url)
+  console.debug ('GET', req.params)
+  try {
+    const { tarball } = req.params
+    const [, pkg ] = /^capire-(\w+)/.exec(tarball)
+    fs.lstat(tarball,(err => {
+      if (err) exec(`npm pack ../${pkg}`,next)
+      else next()
+    }))
+  } catch (e) {
+    console.error(e)
+    res.sendStatus(500)
+  }
+})
+
+app.use('/-', express.static(__dirname))
+
+app.get('/*', (req,res)=>{
+  const url = decodeURIComponent(req.url)
+  console.debug ('GET',url)
+  try {
+    const [, capire, pkg ] = /^\/(@capire)\/(\w+)/.exec(url)
+    const package = require (`${capire}/${pkg}/package.json`)
+    const tarball = `capire-${pkg}-${package.version}.tgz`
+    // https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md
+    res.json({
+      "name": package.name,
+      "dist-tags": {
+        "latest": package.version
+      },
+      "versions": {
+        [package.version]: {
+          "name": package.name,
+          "version": package.version,
+          "dist": {
+            "tarball": `http://localhost:${port}/-/${tarball}`
+          },
+        }
+      },
+    })
+  } catch (e) {
+    console.error(e)
+    res.sendStatus(404)
+  }
+})
+
+app.listen(port, ()=>{
+  console.log (`npm set @capire:registry=http://localhost:${port}`)
+  console.log (`@capire registry listening on http://localhost:${port}`)
+  exec(`npm set @capire:registry=http://localhost:${port}`)
+})
+
+const _exit = ()=>{
+  console.log ('\nnpm conf rm @capire:registry')
+  exec('npm conf rm @capire:registry')
+  exec('rm *.tgz')
+  process.exit()
+}
+process.on ('SIGTERM',_exit)
+process.on ('SIGHUP',_exit)
+process.on ('SIGINT',_exit)
+process.on ('SIGUSR2',_exit)

.reuse/dep5

@@ -0,0 +1,29 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: cloud-cap-samples
+Upstream-Contact: <Christian Georgi (christian.georgi@sap.com)>
+Source: https://github.com/SAP-samples/cloud-cap-samples
+Disclaimer: The code in this project may include calls to APIs (“API Calls”) of
+ SAP or third-party products or services developed outside of this project
+ (“External Products”).
+ “APIs” means application programming interfaces, as well as their respective
+ specifications and implementing code that allows software to communicate with
+ other software.
+ API Calls to External Products are not licensed under the open source license
+ that governs this project. The use of such API Calls and related External
+ Products are subject to applicable additional agreements with the relevant
+ provider of the External Products. In no event shall the open source license
+ that governs this project grant any rights in or to any External Products,or
+ alter, expand or supersede any terms of the applicable additional agreements.
+ If you have a valid license agreement with SAP for the use of a particular SAP
+ External Product, then you may make use of any API Calls included in this
+ project’s code for that SAP External Product, subject to the terms of such
+ license agreement. If you do not have a valid license agreement for the use of
+ a particular SAP External Product, then you may only make use of any API Calls
+ in this project for that SAP External Product for your internal, non-productive
+ and non-commercial test and evaluation of such API Calls. Nothing herein grants
+ you any rights to use or access any SAP External Product, or provide any third
+ parties the right to use of access any SAP External Product, through API Calls.
+
+Files: *
+Copyright: 2019-2020 SAP SE or an SAP affiliate company and cap-cloud-samples
+License: Apache-2.0

.vscode/extensions.json

@@ -0,0 +1,20 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+	// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+
+	// List of extensions which should be recommended for users of this workspace.
+	"recommendations": [
+		"SAPSE.vscode-cds",
+		"dbaeumer.vscode-eslint",
+		"esbenp.prettier-vscode",
+		"mechatroner.rainbow-csv",
+		"humao.rest-client",
+		"alexcvzz.vscode-sqlite",
+		"hbenl.vscode-mocha-test-adapter",
+		"sdras.night-owl"
+	],
+	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+	"unwantedRecommendations": [
+
+	]
+}

.vscode/launch.json

@@ -4,33 +4,36 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
+  {
+    "name": "Attach by Process ID",
+    "processId": "${command:PickProcess}",
+    "request": "attach",
+    "skipFiles": [
+      "<node_internals>/**"
+    ],
+    "type": "pwa-node"
+  },
     {
-      "name": "bookshop", "request": "launch", "type": "node", "runtimeExecutable": "npx", "runtimeArgs": [ "-n" ],
-      "args": [ "--", "cds", "run", "--in-memory" ],
-      "cwd": "${workspaceFolder}/packages/bookshop",
-      "console": "integratedTerminal",
+      "name": "bookshop",
+      "command": "cds watch bookshop",
+      "request": "launch",
+      "type": "node-terminal",
       "skipFiles": ["<node_internals>/**"]
     },
     {
-      "name": "cds run ...", "request": "launch", "type": "node", "runtimeExecutable": "npx", "runtimeArgs": [ "-n" ],
-      "args": [ "--", "cds", "run", "--with-mocks", "--in-memory?" ],
-      "cwd": "${workspaceFolder}/packages/${input:service}",
-      "console": "integratedTerminal",
+      "name": "Fiori app",
+      "command": "cds watch fiori",
+      "request": "launch",
+      "type": "node-terminal",
       "skipFiles": ["<node_internals>/**"]
     }
   ],
   "inputs": [
     {
       "type": "pickString",
-      "id": "service",
-      "description": "Which service do you want to start?",
-      "options": [
-        "bookshop",
-        "bookstore",
-        "media-server",
-        "office-supplies",
-        "reviews-service"
-      ],
+      "id": "sample",
+      "description": "Which sample do you want to start?",
+      "options": ["bookshop", "fiori", "reviews", "reviews/test/bookshop"],
       "default": "bookshop"
     }
   ]

.vscode/tasks.json

@@ -1,17 +1,15 @@
 {
-    // See https://go.microsoft.com/fwlink/?LinkId=733558
-    // for the documentation about the tasks.json format
-    "version": "2.0.0",
-    "tasks": [
-        {
-            "type": "npm", "script": "watch", "path": "packages/bookshop/",
-            "options": { "env": { "PORT": "4004" }},
-            "presentation": { "group": "A" }
-        },
-        {
-            "type": "npm", "script": "watch", "path": "packages/reviews-service/",
-            "options": { "env": { "PORT": "5005" }},
-            "presentation": { "group": "A" }
-        }
-    ]
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "type": "npm",
+      "script": "jest",
+      "group": {
+        "kind": "test",
+        "isDefault": true
+      }
+    }
+  ]
 }

LICENSE

@@ -1,190 +1,208 @@
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+limitations under the License.

NOTICE

@@ -1 +0,0 @@
-Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved.

README.md

@@ -1,71 +1,78 @@
-# cloud-cap-samples
+# Welcome to cap/samples
 
-This is a monorepository for sample projects on [SAP Cloud Application Programming Model](https://cap.cloud.sap).
+Find here a collection of samples for the [SAP Cloud Application Programming Model](https://cap.cloud.sap) organized in a simplistic [monorepo setup](samples.md#all-in-one-monorepo). → See [**Overview** of contained samples](samples.md)
 
-## Description
-
-This repository provides a list of samples and reusable packages created based on SAP Cloud Application Programming Model.
-The SAP Cloud Application Programming Model enables you to quickly create business applications by allowing you to focus on your domain logic. It offers a consistent end-to-end programming model that includes languages, libraries and APIs tailored for full-stack development on SAP Cloud Platform.
-
-The samples provided can be run in a local setup on SQLite Database.
+![](https://github.com/SAP-samples/cloud-cap-samples/workflows/CI/badge.svg)
+[![REUSE status](https://api.reuse.software/badge/github.com/SAP-samples/cloud-cap-samples)](https://api.reuse.software/info/github.com/SAP-samples/cloud-cap-samples)
 
 
-## Requirements
-* [Node.js](https://nodejs.org/en/) v8 or higher
-* [Git](https://git-scm.com)
-* [SQLite DB](https://www.sqlite.org/download.html) (Windows only; pre-installed on Mac/Linux)
+### Preliminaries
 
-#### Optional (if you want to import the code into an editor)
-* [VS Code](https://code.visualstudio.com)
-* [Add CDS extension to VS](https://cap.cloud.sap/docs/get-started/in-vscode#add-cds-editor)
+1. [Install @sap/cds-dk](https://cap.cloud.sap/docs/get-started/) globally as documented in [capire](https://cap.cloud.sap)
+   ```sh
+   npm i -g @sap/cds-dk
+   ```
+2. _Optional:_ [Use Visual Studio Code](https://cap.cloud.sap/docs/get-started/in-vscode)
 
-## Download and Installation
+### Download
+
+Clone this repo as shown below, if you have [git](https://git-scm.com/downloads) installed,
+otherwise [download as zip file](archive/master.zip).
 
-#### Install `cds` development kit
 ```sh
-# `@sap`-scoped packages are set via .npmrc
-npm install -g @sap/cds-dk
-cds  #> test-run it
+git clone https://github.com/sap-samples/cloud-cap-samples samples
+cd samples
 ```
-Got issues?  Check out the [documentation](https://cap.cloud.sap/docs/get-started/).
 
-#### Clone and build the application
-`git clone https://github.com/SAP-samples/cloud-cap-samples samples && cd samples && npm i`
+### Setup
 
-#### Run the samples
+In the samples folder run:
 
-With that you're ready to run the samples, e.g. start the [_bookshop_](./packages/bookshop) sample as follows:
+```sh
+npm install
+```
 
-`npm run bookshop`
+### Run
 
-## Test
+With that you're ready to run the samples, for example:
 
-For example, try these links in your browser:
-- <http://localhost:4004> to test with generic index page.
-- <http://localhost:4004/fiori.html> to test with Fiori sandbox.
+```sh
+cds watch bookshop
+```
+
+After that open this link in your browser: [http://localhost:4004](http://localhost:4004)
+
+### Testing
+
+Run the provided tests with [_jest_](http://jestjs.io) or [_mocha_](http://mochajs.org), for example:
+```sh
+npx jest
+```
+> While mocha is a bit smaller and faster, jest runs tests in parallel and isolation, which allows to run all tests.
 
 
-## Debug
+### Serve `npm` 
 
-For example, in [VS Code](https://code.visualstudio.com) switch to _Debug_ view and launch one of the prepared _cds run_ launch configurations.
+We've simple npm registry mock included which allows you to do an `npm install @capire/<package>` anywhere locally. Use it as follows:
+
+1. Start the @capire registry:
+```sh
+npm run registry
+```
+> While running this will have `@capire:registry=http://localhost:4444` set with npmrc. 
+
+2. Install one of the @capire packages wherever you like, e.g.:
+```sh
+npm add @capire/common @capire/bookshop
+```
 
 
-## Limitations
+## Get Support
 
-None
+Check out the documentation at [https://cap.cloud.sap](https://cap.cloud.sap). <br>
+In case you have a question, find a bug, or otherwise need support, please use our [community](https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce).
 
-## Known Issues
-
-None
-
-## How to obtain support
-
-Check out the documentation on https://cap.cloud.sap.  In case you find a bug, or you need additional support, please open an issue [here](https://github.com/SAP-samples/cloud-cap-samples/issues/new) in GitHub.
-
-## To-Do (upcoming changes)
-
-None
 
 ## License
 
-Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under SAP Sample Code License Agreement, except as noted otherwise in the [LICENSE](/LICENSE) file.
+Copyright (c) 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, version 2.0 except as noted otherwise in the [LICENSE](LICENSES/Apache-2.0.txt) file.

bookshop/.vscode/launch.json

@@ -0,0 +1,25 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Attach to...",
+      "type": "node",
+      "request": "attach",
+      "processId": "${command:PickProcess}",
+      "skipFiles": ["<node_internals>/**"]
+    },
+    {
+      "name": "cds run",
+      "type": "node",
+      "request": "launch",
+      "runtimeExecutable": "npx",
+      "runtimeArgs": ["-n"],
+      "args": ["--", "cds", "run", "--with-mocks", "--in-memory?"],
+      "console": "integratedTerminal",
+      "skipFiles": ["<node_internals>/**"]
+    }
+  ]
+}

bookshop/app/index.cds

@@ -0,0 +1,2 @@
+// Incorporate pre-build extensions from...
+using from '@capire/common';

bookshop/app/vue/app.js

@@ -0,0 +1,48 @@
+/* global Vue axios */ //> from vue.html
+const $ = sel => document.querySelector(sel)
+const GET = (url) => axios.get('/browse'+url)
+const POST = (cmd,data) => axios.post('/browse'+cmd,data)
+
+const books = new Vue ({
+
+    el:'#app',
+
+    data: {
+        list: [],
+        book: undefined,
+        order: { amount:1, succeeded:'', failed:'' }
+    },
+
+    methods: {
+
+        search: ({target:{value:v}}) => books.fetch(v && '&$search='+v),
+
+        async fetch (etc='') {
+            const {data} = await GET(`/ListOfBooks?$expand=genre,currency${etc}`)
+            books.list = data.value
+        },
+
+        async inspect (eve) {
+            const book = books.book = books.list [eve.currentTarget.rowIndex-1]
+            const res = await GET(`/Books/${book.ID}?$select=descr,stock,image`)
+            Object.assign (book, res.data)
+            books.order = { amount:1 }
+            setTimeout (()=> $('form > input').focus(), 111)
+        },
+
+        async submitOrder () {
+            const {book,order} = books, amount = parseInt (order.amount) || 1 // REVISIT: Okra should be less strict
+            try {
+                const res = await POST(`/submitOrder`, { amount, book: book.ID })
+                book.stock = res.data.stock
+                books.order = { amount, succeeded: `Successfully orderd ${amount} item(s).` }
+            } catch (e) {
+                books.order = { amount, failed: e.response.data.error.message }
+            }
+        }
+
+    }
+})
+
+// initially fill list of books
+books.fetch()

bookshop/app/vue/index.html

@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title> Capire Books </title>
+    <link rel="stylesheet" href="https://unpkg.com/primitive-ui/dist/css/main.css">
+    <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/vue"></script>
+    <style>
+        .hovering tr:hover td { color:cyan; background: #123; cursor: pointer; }
+        .rating-stars { color:teal }
+        .succeeded { color:teal }
+        .failed { color:red }
+    </style>
+</head>
+
+<body class="small-container", style="margin-top: 70px;">
+<div id='app'>
+
+    <h1> {{ document.title }} </h1>
+
+    <input type="text" placeholder="Search..." @input="search">
+
+    <table id='books' class="hovering">
+        <thead>
+            <th> Book </th>
+            <th> Author </th>
+            <th> Genre </th>
+            <th> Rating </th>
+            <th> Price </th>
+        </thead>
+        <tr v-for="book in list" v-bind:id="book.ID" v-on:click="inspect">
+            <td>{{ book.title }}</td>
+            <td>{{ book.author }}</td>
+            <td>{{ book.genre.name }}</td>
+            <td class="rating-stars">
+                {{ ('★'.repeat(Math.round(book.rating))+'☆☆☆☆☆').slice(0,5) }}
+            </td>
+            <td>{{ book.currency.symbol }} {{ book.price }}</td>
+        </tr>
+    </table>
+
+    <div v-if="book">
+        <img v-bind:src="book.image" alt=""/>
+        <label style="text-align:right">
+            <span class="succeeded"> {{ order.succeeded }} </span>
+            <span class="failed"> {{ order.failed }} </span>
+            &nbsp;&nbsp; {{ book.stock }} in stock
+        </label>
+        <form @submit.prevent="submitOrder" style="float:right; display:flex; flex-direction:row-reverse">
+            <input type="number" v-model="order.amount" v-bind:class="{ failed: order.failed }" style="width:5em">
+            <input type="submit" value="Order:" class="muted-button">
+        </form>
+        <h4> {{ book.title }} </h4>
+        <p> {{ book.descr }} </p>
+    </div>
+    <div v-else>
+        ( click on a row to see details... )
+    </div>
+
+</div>
+</body>
+
+<script src="app.js"></script>
+</html>

bookshop/db/data/sap.capire.bookshop-Books.csv

@@ -1,6 +1,6 @@
-ID;title;descr;author_ID;stock;price;currency_code
-201;Wuthering Heights;"Wuthering Heights, Emily Brontë's only novel, was published in 1847 under the pseudonym ""Ellis Bell"". It was written between October 1845 and June 1846. Wuthering Heights and Anne Brontë's Agnes Grey were accepted by publisher Thomas Newby before the success of their sister Charlotte's novel Jane Eyre. After Emily's death, Charlotte edited the manuscript of Wuthering Heights and arranged for the edited version to be published as a posthumous second edition in 1850.";101;12;11.11;GBP
-207;Jane Eyre;"Jane Eyre /ɛər/ (originally published as Jane Eyre: An Autobiography) is a novel by English writer Charlotte Brontë, published under the pen name ""Currer Bell"", on 16 October 1847, by Smith, Elder & Co. of London. The first American edition was published the following year by Harper & Brothers of New York. Primarily a bildungsroman, Jane Eyre follows the experiences of its eponymous heroine, including her growth to adulthood and her love for Mr. Rochester, the brooding master of Thornfield Hall. The novel revolutionised prose fiction in that the focus on Jane's moral and spiritual development is told through an intimate, first-person narrative, where actions and events are coloured by a psychological intensity. The book contains elements of social criticism, with a strong sense of Christian morality at its core and is considered by many to be ahead of its time because of Jane's individualistic character and how the novel approaches the topics of class, sexuality, religion and feminism.";107;11;12.34;GBP
-251;The Raven;"""The Raven"" is a narrative poem by American writer Edgar Allan Poe. First published in January 1845, the poem is often noted for its musicality, stylized language, and supernatural atmosphere. It tells of a talking raven's mysterious visit to a distraught lover, tracing the man's slow fall into madness. The lover, often identified as being a student, is lamenting the loss of his love, Lenore. Sitting on a bust of Pallas, the raven seems to further distress the protagonist with its constant repetition of the word ""Nevermore"". The poem makes use of folk, mythological, religious, and classical references.";150;333;13.13;USD
-252;Eleonora;"""Eleonora"" is a short story by Edgar Allan Poe, first published in 1842 in Philadelphia in the literary annual The Gift. It is often regarded as somewhat autobiographical and has a relatively ""happy"" ending.";150;555;14;USD
-271;Catweazle;Catweazle is a British fantasy television series, starring Geoffrey Bayldon in the title role, and created by Richard Carpenter for London Weekend Television. The first series, produced and directed by Quentin Lawrence, was screened in the UK on ITV in 1970. The second series, directed by David Reid and David Lane, was shown in 1971. Each series had thirteen episodes, most but not all written by Carpenter, who also published two books based on the scripts.;170;22;15;EUR
+ID;title;descr;author_ID;stock;price;currency_code;genre_ID
+201;Wuthering Heights;"Wuthering Heights, Emily Brontë's only novel, was published in 1847 under the pseudonym ""Ellis Bell"". It was written between October 1845 and June 1846. Wuthering Heights and Anne Brontë's Agnes Grey were accepted by publisher Thomas Newby before the success of their sister Charlotte's novel Jane Eyre. After Emily's death, Charlotte edited the manuscript of Wuthering Heights and arranged for the edited version to be published as a posthumous second edition in 1850.";101;12;11.11;GBP;11
+207;Jane Eyre;"Jane Eyre /ɛər/ (originally published as Jane Eyre: An Autobiography) is a novel by English writer Charlotte Brontë, published under the pen name ""Currer Bell"", on 16 October 1847, by Smith, Elder & Co. of London. The first American edition was published the following year by Harper & Brothers of New York. Primarily a bildungsroman, Jane Eyre follows the experiences of its eponymous heroine, including her growth to adulthood and her love for Mr. Rochester, the brooding master of Thornfield Hall. The novel revolutionised prose fiction in that the focus on Jane's moral and spiritual development is told through an intimate, first-person narrative, where actions and events are coloured by a psychological intensity. The book contains elements of social criticism, with a strong sense of Christian morality at its core and is considered by many to be ahead of its time because of Jane's individualistic character and how the novel approaches the topics of class, sexuality, religion and feminism.";107;11;12.34;GBP;11
+251;The Raven;"""The Raven"" is a narrative poem by American writer Edgar Allan Poe. First published in January 1845, the poem is often noted for its musicality, stylized language, and supernatural atmosphere. It tells of a talking raven's mysterious visit to a distraught lover, tracing the man's slow fall into madness. The lover, often identified as being a student, is lamenting the loss of his love, Lenore. Sitting on a bust of Pallas, the raven seems to further distress the protagonist with its constant repetition of the word ""Nevermore"". The poem makes use of folk, mythological, religious, and classical references.";150;333;13.13;USD;16
+252;Eleonora;"""Eleonora"" is a short story by Edgar Allan Poe, first published in 1842 in Philadelphia in the literary annual The Gift. It is often regarded as somewhat autobiographical and has a relatively ""happy"" ending.";150;555;14;USD;16
+271;Catweazle;Catweazle is a British fantasy television series, starring Geoffrey Bayldon in the title role, and created by Richard Carpenter for London Weekend Television. The first series, produced and directed by Quentin Lawrence, was screened in the UK on ITV in 1970. The second series, directed by David Reid and David Lane, was shown in 1971. Each series had thirteen episodes, most but not all written by Carpenter, who also published two books based on the scripts.;170;22;15;EUR;13

bookshop/db/data/sap.capire.bookshop-Books_texts.csv

@@ -1,4 +1,5 @@
 ID;locale;title;descr
 201;de;Sturmhöhe;Sturmhöhe (Originaltitel: Wuthering Heights) ist der einzige Roman der englischen Schriftstellerin Emily Brontë (1818–1848). Der 1847 unter dem Pseudonym Ellis Bell veröffentlichte Roman wurde vom viktorianischen Publikum weitgehend abgelehnt, heute gilt er als ein Klassiker der britischen Romanliteratur des 19. Jahrhunderts.
+201;fr;Les Hauts de Hurlevent;Les Hauts de Hurlevent (titre original : Wuthering Heights), parfois orthographié Les Hauts de Hurle-Vent, est l'unique roman d'Emily Brontë, publié pour la première fois en 1847 sous le pseudonyme d’Ellis Bell. Loin d'être un récit moralisateur, Emily Brontë achève néanmoins le roman dans une atmosphère sereine, suggérant le triomphe de la paix et du Bien sur la vengeance et le Mal.
 207;de;Jane Eyre;Jane Eyre. Eine Autobiographie (Originaltitel: Jane Eyre. An Autobiography), erstmals erschienen im Jahr 1847 unter dem Pseudonym Currer Bell, ist der erste veröffentlichte Roman der britischen Autorin Charlotte Brontë und ein Klassiker der viktorianischen Romanliteratur des 19. Jahrhunderts. Der Roman erzählt in Form einer Ich-Erzählung die Lebensgeschichte von Jane Eyre (ausgesprochen /ˌdʒeɪn ˈɛə/), die nach einer schweren Kindheit eine Stelle als Gouvernante annimmt und sich in ihren Arbeitgeber verliebt, jedoch immer wieder um ihre Freiheit und Selbstbestimmung kämpfen muss. Als klein, dünn, blass, stets schlicht dunkel gekleidet und mit strengem Mittelscheitel beschrieben, gilt die Heldin des Romans Jane Eyre nicht zuletzt aufgrund der Kino- und Fernsehversionen der melodramatischen Romanvorlage als die bekannteste englische Gouvernante der Literaturgeschichte
 252;de;Eleonora;“Eleonora” ist eine Erzählung von Edgar Allan Poe. Sie wurde 1841 erstveröffentlicht. In ihr geht es um das Paradox der Treue in der Treulosigkeit.

bookshop/db/data/sap.capire.bookshop-Genres.csv

@@ -0,0 +1,16 @@
+ID;parent_ID;name
+10;;Fiction
+11;10;Drama
+12;10;Poetry
+13;10;Fantasy
+14;10;Science Fiction
+15;10;Romance
+16;10;Mystery
+17;10;Thriller
+18;10;Dystopia
+19;10;Fairy Tale
+20;;Non-Fiction
+21;20;Biography
+22;21;Autobiography
+23;20;Essay
+24;20;Speech

bookshop/db/schema.cds

@@ -1,14 +1,16 @@
+using { Currency, managed, sap } from '@sap/cds/common';
 namespace sap.capire.bookshop;
-using { Currency, managed, cuid } from '@sap/cds/common';
 
 entity Books : managed {
   key ID : Integer;
   title  : localized String(111);
   descr  : localized String(1111);
   author : Association to Authors;
+  genre  : Association to Genres;
   stock  : Integer;
-  price  : Decimal(9,2);
+  price  : Decimal;
   currency : Currency;
+  image : LargeBinary @Core.MediaType : 'image/png';
 }
 
 entity Authors : managed {
@@ -21,15 +23,9 @@ entity Authors : managed {
   books  : Association to many Books on books.author = $self;
 }
 
-entity Orders : cuid, managed {
-  OrderNo  : String @title:'Order Number'; //> readable key
-  Items    : Composition of many OrderItems on Items.parent = $self;
-  total    : Decimal(9,2) @readonly;
-  currency : Currency;
-}
-entity OrderItems : cuid {
-  parent    : Association to Orders;
-  book      : Association to Books;
-  amount    : Integer;
-  netAmount : Decimal(9,2);
+/** Hierarchically organized Code List for Genres */
+entity Genres : sap.common.CodeList {
+  key ID   : Integer;
+  parent   : Association to Genres;
+  children : Composition of many Genres on children.parent = $self;
 }

bookshop/index.cds

@@ -0,0 +1,4 @@
+namespace sap.capire.bookshop; //> important for reflection
+using from './db/schema';
+using from './srv/cat-service';
+using from './srv/admin-service';

bookshop/index.js

@@ -0,0 +1 @@
+exports.CatalogService = require('./srv/cat-service')

bookshop/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "@capire/bookshop",
+  "version": "1.0.0",
+  "description": "A simple self-contained bookshop service.",
+  "dependencies": {
+    "@capire/common": "*",
+    "@sap/cds": "^4",
+    "express": "^4.17.1",
+    "passport": "0.4.1"
+  },
+  "scripts": {
+    "genres": "cds serve test/genres.cds",
+    "start": "cds run",
+    "watch": "cds watch"
+  },
+  "cds": {
+    "requires": {
+      "db": {
+        "kind": "sql"
+      }
+    }
+  }
+}

bookshop/readme.md

@@ -0,0 +1,31 @@
+# Bookshop Getting Started Sample
+
+This stand-alone sample introduces the essential tasks in the development of CAP-based services as also covered in the [Getting Started guide in capire](https://cap.cloud.sap/docs/get-started/in-a-nutshell).
+
+## Hypothetical Use Cases
+
+1. Build a service that allows to browse _Books_ and _Authors_.
+2. Books have assigned _Genres_ which are organized hierarchically.
+3. All users may browse books without login.
+4. All entries are maintained by Administrators.
+5. End users may order books (the actual order mgmt being out of scope)
+
+## Running the Sample
+
+```sh
+npm run watch
+```
+
+## Content & Best Practices
+
+| Links to capire                                                                                           | Sample files / folders               |
+| --------------------------------------------------------------------------------------------------------- | ------------------------------------ |
+| [Project Setup and Layouts](https://cap.cloud.sap/docs/get-started/projects#sharing-and-reusing-content)  | [`./`](./)                           |
+| [Defining Domain Models](https://cap.cloud.sap/docs/guides/domain-models)                                 | [`./db/schema.cds`](./db/schema.cds) |
+| [Defining Services](https://cap.cloud.sap/docs/guides/providing-services)                                 | [`./srv/*.cds`](./srv)               |
+| [Single-purposed Services](https://cap.cloud.sap/docs/guides/providing-services#single-purposed-services) | [`./srv/*.cds`](./srv)               |
+| [Generic Providers](https://cap.cloud.sap/docs/guides/providing-services)                                  | http://localhost:4004                |
+| Using Databases                                            | [`./db/data/*.csv`](./db/data)       |
+| [Adding Custom Logic](https://cap.cloud.sap/docs/guides/service-impl)                                     | [`./srv/*.js`](./srv)                |
+| Adding Tests                                                 | [`./test`](./test)                   |
+| [Sharing for Reuse](https://cap.cloud.sap/docs/get-started/projects#sharing-and-reusing-content)          | [`./index.cds`](./index.cds)         |

bookshop/srv/admin-service.cds

@@ -1,7 +1,5 @@
 using { sap.capire.bookshop as my } from '../db/schema';
-
-service AdminService @(_requires:'authenticated-user') {
+service AdminService @(requires:'admin') {
   entity Books as projection on my.Books;
   entity Authors as projection on my.Authors;
-  entity Orders as select from my.Orders;
 }

bookshop/srv/admin-service.js

@@ -0,0 +1,12 @@
+const cds = require('@sap/cds')
+
+module.exports = cds.service.impl (function(){
+  this.before ('NEW','Authors', genid)
+  this.before ('NEW','Books', genid)
+})
+
+/** Generate primary keys for target entity in request */
+async function genid (req) {
+  const {ID} = await cds.tx(req).run (SELECT.one.from(req.target).columns('max(ID) as ID'))
+  req.data.ID = ID - ID % 100 + 100 + 1
+}

bookshop/srv/cat-service.cds

@@ -0,0 +1,14 @@
+using { sap.capire.bookshop as my } from '../db/schema';
+service CatalogService @(path:'/browse') {
+
+  @readonly entity Books as SELECT from my.Books { *,
+    author.name as author
+  } excluding { createdBy, modifiedBy };
+
+  @readonly entity ListOfBooks as SELECT from Books
+  excluding { descr };
+
+  @requires: 'authenticated-user'
+  action submitOrder ( book: Books:ID, amount: Integer ) returns { stock: Integer };
+  event OrderedBook : { book: Books:ID; amount: Integer; buyer: String };
+}

bookshop/srv/cat-service.js

@@ -0,0 +1,28 @@
+const cds = require('@sap/cds')
+const { Books } = cds.entities ('sap.capire.bookshop')
+
+class CatalogService extends cds.ApplicationService { init(){
+
+  // Reduce stock of ordered books if available stock suffices
+  this.on ('submitOrder', async req => {
+    const {book,amount} = req.data, tx = cds.tx(req)
+    let {stock} = await tx.read('stock').from(Books,book)
+    if (stock >= amount) {
+      await tx.update (Books,book).with ({ stock: stock -= amount })
+      await this.emit ('OrderedBook', { book, amount, buyer:req.user.id })
+      return { stock }
+    }
+    else return req.error (409,`${amount} exceeds stock for book #${book}`)
+  })
+
+  // Add some discount for overstocked books
+  this.after ('READ','Books', each => {
+    if (each.stock > 111) {
+      each.title += ` -- 11% discount!`
+    }
+  })
+
+  return super.init()
+}}
+
+module.exports = { CatalogService }

bookshop/test/genres.cds

@@ -0,0 +1,4 @@
+using { sap.capire.bookshop as my } from '../db/schema';
+service TestService {
+  entity Genres as projection on my.Genres;
+}

bookshop/test/genres.http

@@ -3,10 +3,15 @@
 #   Genres
 #
 
-GET http://localhost:4004/admin/Genres?
+GET http://localhost:4004/test/Genres?
 ###
 
-POST http://localhost:4004/admin/Genres?
+GET http://localhost:4004/test/Genres?
+&$filter=parent_ID eq null&$select=name
+&$expand=children($select=name)
+###
+
+POST http://localhost:4004/test/Genres?
 Content-Type: application/json
 
 { "ID":100, "name":"Some Sample Genres...", "children":[
@@ -21,13 +26,13 @@ Content-Type: application/json
 ]}
 ###
 
-GET http://localhost:4004/admin/Genres(100)?
+GET http://localhost:4004/test/Genres(100)?
 # &$expand=children
 # &$expand=children($expand=children($expand=children($expand=children)))
 ###
 
-DELETE http://localhost:4004/admin/Genres(103)
+DELETE http://localhost:4004/test/Genres(103)
 ###
 
-DELETE http://localhost:4004/admin/Genres(100)
+DELETE http://localhost:4004/test/Genres(100)
 ###

bookshop/test/requests.http

@@ -0,0 +1,82 @@
+@server = http://localhost:4004
+@me = Authorization: Basic {{$processEnv USER}}:
+
+
+### ------------------------------------------------------------------------
+# Get service info
+GET {{server}}/browse
+{{me}}
+
+
+### ------------------------------------------------------------------------
+# Get $metadata document
+GET {{server}}/browse/$metadata
+{{me}}
+
+
+### ------------------------------------------------------------------------
+# Browse Books as any user
+GET {{server}}/browse/Books?
+  # &$select=title,stock
+  # &$expand=currency
+  # &sap-language=de
+{{me}}
+
+
+### ------------------------------------------------------------------------
+# Fetch Authors as admin
+GET {{server}}/admin/Authors?
+  # &$select=name,dateOfBirth,placeOfBirth
+  # &$expand=books($select=title;$expand=currency)
+  # &$filter=ID eq 101
+  # &sap-language=de
+Authorization: Basic alice:
+
+### ------------------------------------------------------------------------
+# Create book
+POST {{server}}/admin/Books
+Content-Type: application/json;IEEE754Compatible=true
+Authorization: Basic alice:
+
+{
+  "ID": 2,
+  "title": "Poems : Pocket Poets",
+  "descr": "The Everyman's Library Pocket Poets hardcover series is popular for its compact size and reasonable price which does not compromise content. Poems: Bronte contains poems that demonstrate a sensibility elemental in its force with an imaginative discipline and flexibility of the highest order. Also included are an Editor's Note and an index of first lines.",
+  "author": { "ID": 101 },
+  "genre": { "ID": 12 },
+  "stock": 5,
+  "price": "12.05",
+  "currency": { "code": "USD" }
+}
+
+
+### ------------------------------------------------------------------------
+# Put image to books
+PUT {{server}}/admin/Books(2)/image
+Content-Type: image/png
+Authorization: Basic alice:
+
+data:image/png;base64,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
+
+
+### ------------------------------------------------------------------------
+# Reading image from from the server directly
+GET {{server}}/browse/Books(2)/image
+
+
+### ------------------------------------------------------------------------
+# Submit Order as authenticated user
+# (send that three times to get out-of-stock message)
+POST {{server}}/browse/submitOrder
+Content-Type: application/json
+{{me}}
+
+{ "book":201, "amount":5 }
+
+
+### ------------------------------------------------------------------------
+# Browse Genres
+GET {{server}}/browse/Genres?
+# &$filter=parent_ID eq null&$select=name
+# &$expand=children($select=name)
+{{me}}

chinook/.env

@@ -0,0 +1,3 @@
+# REVISIT: This is not a good practice -> don't do it that way, we just did it to save some time :)
+ACCESS_TOKEN_SECRET=secret
+REFRESH_TOKEN_SECRET=refresh-secret

chinook/.gitignore

@@ -0,0 +1,35 @@
+# CAP media-store
+_out
+*.db
+connection.properties
+default-*.json
+gen/
+node_modules/
+target/
+package-lock.json
+app/build
+
+# html5Deployer
+app/deployers/html5Deployer/resources/
+
+# Web IDE, App Studio
+.che/
+.gen/
+
+# MTA
+*_mta_build_tmp
+*.mtar
+*.mta
+mta_archives/
+
+# Other
+.DS_Store
+*.orig
+*.log
+
+*.iml
+*.flattened-pom.xml
+
+# IDEs
+# .vscode
+# .idea

chinook/.vscode/extensions.json

@@ -0,0 +1,20 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+	// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+
+	// List of extensions which should be recommended for users of this workspace.
+	"recommendations": [
+		// >>>>>>>> Add CDS Editor here as soon it is available of vscode marketplace!,
+		"dbaeumer.vscode-eslint",
+		"esbenp.prettier-vscode",
+		"mechatroner.rainbow-csv",
+		"humao.rest-client",
+		"alexcvzz.vscode-sqlite",
+		"hbenl.vscode-mocha-test-adapter",
+		"sdras.night-owl"
+	],
+	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+	"unwantedRecommendations": [
+
+	]
+}

chinook/.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+
+   
+    {
+      "command": "cds run --with-mocks --in-memory?",
+      "name": "cds run",
+      "request": "launch",
+      "type": "node-terminal",
+      "skipFiles": ["<node_internals>/**"]
+    }
+  ]
+}

chinook/.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+  "files.exclude": {
+    "**/.gitignore": true,
+    "**/.git": true,
+    "**/.vscode": true
+  },
+  "files.watcherExclude": {}
+}

chinook/.vscode/tasks.json

@@ -0,0 +1,25 @@
+{
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "type": "shell",
+      "label": "cds watch",
+      "command": "cds",
+      "args": ["watch"],
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": []
+    },
+    {
+      "type": "shell",
+      "label": "cds run",
+      "command": "cds",
+      "args": ["run", "--with-mocks", "--in-memory?"],
+      "problemMatcher": []
+    }
+  ]
+}

chinook/README.md

@@ -0,0 +1,96 @@
+# Getting Started
+
+Welcome to your new project.
+
+It contains these folders and files, following our recommended project layout:
+
+| File or Folder   | Purpose                              |
+| ---------------- | ------------------------------------ |
+| `app/`           | will contain compiled front bundles  |
+| `app/front/`     | contains frontend app on react       |
+| `app/deployers/` | contains deployment stuff            |
+| `db/`            | your domain models and data go here  |
+| `srv/`           | your service models and code go here |
+| `test/`          | your services tests                  |
+| `package.json`   | project metadata and configuration   |
+| `mta.yaml`       | deployment config                    |
+| `readme.md`      | this getting started guide           |
+| `server.js`      | initial server set up                |
+
+## Development
+
+- Start cds service on 4004 port in watch mode:
+
+```json
+cds watch
+```
+
+- Open `app/front` folder and run next commands. This will install dependencies and run frontend src files watcher. When you will change src files your bundles in app directory will re-compiled. Now you can enjoy development:
+
+```json
+npm install
+npm run watch
+```
+
+> For better frontend development experience use below command instead of watcher. This will start frontend dev server on 3000 port. Now your bundles will be hot reloaded, this means you do not need reload the page to see changes:
+>
+> ```json
+> npm run start
+> ```
+
+## Test
+
+- Change package.json db section
+
+```json
+  "db": {
+    "kind": "sql"
+  }
+```
+
+- Run tests
+
+```json
+npm run test
+```
+
+## Deployment
+
+- Make sure you already have hana trial instance in your cockpit dashboard (SAP Cloud Platform).
+  Or if you are using hana instance - change it in mta.yaml config file from hanatrial to hana
+- Change package.json db section
+
+```json
+  "db": {
+    "kind": "hana"
+  }
+```
+
+- Authenticate to the Cloud Foundry:
+
+```json
+cf login
+```
+
+- Open `app/front` folder and run the following commands. This will create frontend production bundles in app subfolder:
+
+```json
+npm install
+npm run build:prod
+```
+
+- Clean up app/deployers/html5Deployer/resources folder from the previous frontend build
+
+- From root directory run:
+
+```json
+mbt build -t ./
+cf deploy media-store_1.0.0.mtar
+```
+
+- Now your services should be deployed with hanatrial instance and filled with initial data
+
+## Learn More
+
+- [Learn more about CAP](https://cap.cloud.sap/docs/get-started/)
+- [Deploying to Cloud Foundry](https://cap.cloud.sap/docs/advanced/deploy-to-cloud)

chinook/app/deployers/approuter/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "media-store-approuter",
+  "description": "Approuter",
+  "version": "1.0.0",
+  "dependencies": {
+    "@sap/approuter": "^6.8.2"
+  },
+  "scripts": {
+    "start": "node node_modules/@sap/approuter/approuter.js"
+  }
+}

chinook/app/deployers/approuter/xs-app.json

@@ -0,0 +1,17 @@
+{
+  "welcomeFile": "/index.html",
+  "authenticationMethod": "none",
+  "routes": [
+    {
+      "source": "/api/(.*)",
+      "target": "$1",
+      "destination": "srv-binding",
+      "authenticationType": "none"
+    },
+    {
+      "source": "^(.*)",
+      "target": "mediastore/$1",
+      "service": "html5-apps-repo-rt"
+    }
+  ]
+}

chinook/app/deployers/html5Deployer/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "media-store-html5deployer",
+  "engines": {
+    "node": ">=6.0.0"
+  },
+  "dependencies": {
+    "@sap/html5-app-deployer": "^2.0.0"
+  },
+  "scripts": {
+    "start": "node node_modules/@sap/html5-app-deployer/index.js"
+  }
+}

chinook/app/deployers/xs-security.json

@@ -0,0 +1,7 @@
+{
+  "xsappname": "media-store-xsuaa",
+  "tenant-mode": "dedicated",
+  "scopes": [],
+  "attributes": [],
+  "role-templates": []
+}

chinook/app/front/.babelrc

@@ -0,0 +1,5 @@
+{
+    "presets": ["@babel/preset-react", "@babel/preset-env"],
+    "plugins": ["@babel/plugin-transform-runtime", "babel-plugin-syntax-dynamic-import"]
+}
+  

chinook/app/front/.eslintrc.json

@@ -0,0 +1,43 @@
+{
+  "env": {
+    "browser": true,
+    "es2020": true
+  },
+  "extends": ["plugin:react/recommended", "airbnb", "prettier"],
+  "parserOptions": {
+    "ecmaFeatures": {
+      "jsx": true
+    },
+    "ecmaVersion": 11,
+    "sourceType": "module"
+  },
+  "plugins": ["react", "prettier"],
+  "rules": {
+    "prettier/prettier": ["error", { "parser": "flow", "endOfLine": "auto" }],
+    "linebreak-style": [0, "error", "windows"],
+    "import/prefer-default-export": "off",
+    "no-shadow": "off",
+    "react/forbid-prop-types": "off",
+    "no-alert": "off",
+    "jsx-a11y/label-has-associated-control": [
+      "error",
+      {
+        "required": {
+          "some": ["nesting", "id"]
+        }
+      }
+    ],
+    "jsx-a11y/label-has-for": [
+      "error",
+      {
+        "required": {
+          "some": ["nesting", "id"]
+        }
+      }
+    ],
+    "react/jsx-props-no-spreading": "off", // props spreading,
+    "no-console": "off",
+    "consistent-return": "off",
+    "prefer-destructuring": "off"
+  }
+}

chinook/app/front/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

chinook/app/front/.prettierrc

@@ -0,0 +1,4 @@
+{
+  "printWidth": 100,
+  "singleQuote": true
+}

chinook/app/front/.vscode/launch.json

@@ -0,0 +1,13 @@
+
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Chrome",
+            "type": "chrome",
+            "request": "launch",
+            "url": "http://localhost:3000",
+            "webRoot": "${workspaceRoot}/src"
+        }
+    ]
+}

chinook/app/front/README.md

@@ -0,0 +1 @@
+"# Media store UI"

chinook/app/front/package.json

@@ -0,0 +1,67 @@
+{
+  "name": "mediastore",
+  "version": "0.1.0",
+  "private": false,
+  "scripts": {
+    "start": "./node_modules/.bin/webpack-dev-server --config ./webpack/webpack-dev-server.js",
+    "watch": "./node_modules/.bin/webpack -w --config ./webpack/webpack.dev.js",
+    "build:dev": "./node_modules/.bin/webpack --config ./webpack/webpack.dev.js",
+    "build:prod": "./node_modules/.bin/webpack --config ./webpack/webpack.prod.js",
+    "lint": "./node_modules/.bin/eslint"
+  },
+  "dependencies": {
+    "@ant-design/icons": "4.3.0",
+    "@pmmmwh/react-refresh-webpack-plugin": "^0.4.3",
+    "@testing-library/jest-dom": "^4.2.4",
+    "@testing-library/react": "^9.3.2",
+    "@testing-library/user-event": "^7.1.2",
+    "@umijs/hooks": "^1.9.3",
+    "antd": "^4.8.2",
+    "axios": "^0.20.0",
+    "clean-webpack-plugin": "^3.0.0",
+    "copy-webpack-plugin": "^6.3.2",
+    "css-minimizer-webpack-plugin": "^1.1.5",
+    "events": "^3.2.0",
+    "html-webpack-plugin": "^4.5.0",
+    "lodash": "^4.17.20",
+    "mini-css-extract-plugin": "^1.3.1",
+    "moment": "^2.29.1",
+    "prop-types": "^15.7.2",
+    "react": "^16.14.0",
+    "react-dev-utils": "^11.0.1",
+    "react-dom": "^16.14.0",
+    "react-refresh": "^0.9.0",
+    "react-router-dom": "^5.2.0",
+    "terser-webpack-plugin": "^5.0.3",
+    "webpack": "5.8.0",
+    "webpack-dev-server": "^3.11.0",
+    "webpack-merge": "^5.4.0"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.12.9",
+    "@babel/plugin-transform-runtime": "^7.12.1",
+    "@babel/polyfill": "^7.12.1",
+    "@babel/preset-env": "^7.12.7",
+    "@babel/preset-react": "^7.12.7",
+    "@babel/runtime": "^7.12.5",
+    "babel-loader": "^8.2.2",
+    "babel-plugin-syntax-dynamic-import": "^6.18.0",
+    "cowsay": "^1.4.0",
+    "css-loader": "^5.0.1",
+    "eslint": "^7.14.0",
+    "eslint-config-airbnb": "^18.2.1",
+    "eslint-config-prettier": "^6.15.0",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-jsx-a11y": "^6.4.1",
+    "eslint-plugin-prettier": "^3.1.4",
+    "eslint-plugin-react": "^7.21.5",
+    "eslint-plugin-react-hooks": "^4.2.0",
+    "prettier": "^2.2.1",
+    "style-loader": "^2.0.0",
+    "url-loader": "^4.1.1",
+    "webpack-cli": "^3.3.12"
+  },
+  "eslintConfig": {
+    "extends": "react-app"
+  }
+}

chinook/app/front/public/index.html

@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <meta name="theme-color" content="#000000" />
+  <meta
+    name="description"
+    content="Web site created using create-react-app" />
+  <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+  <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+  <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+  <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+  <title>React App</title>
+</head>
+
+<body>
+  <noscript>You need to enable JavaScript to run this app.</noscript>
+  <div id="root"></div>
+  <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+</body>
+
+</html>

chinook/app/front/public/manifest.json

@@ -0,0 +1,31 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff",
+  "sap.app": {
+    "id": "mediastore",
+    "applicationVersion": {
+      "version": "1.0.0"
+    }
+  }
+}

chinook/app/front/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

chinook/app/front/public/xs-app.json

@@ -0,0 +1,10 @@
+{
+  "welcomeFile": "/index.html",
+  "routes": [
+    {
+      "source": "^(.*)",
+      "target": "$1",
+      "service": "html5-apps-repo-rt"
+    }
+  ]
+}

chinook/app/front/src/App.css

@@ -0,0 +1,57 @@
+@import "~antd/dist/antd.css";
+
+html {
+  overflow: hidden;
+}
+#root {
+  height: 100%;
+}
+section.ant-layout {
+  height: 100vh;
+  overflow: auto;
+}
+
+/* Layout
+*/
+.site-layout .site-layout-background {
+  background: #fff;
+}
+
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}

chinook/app/front/src/App.jsx

@@ -0,0 +1,18 @@
+import React from 'react';
+import 'antd/dist/antd.css';
+import './App.css';
+import { Layout } from 'antd';
+import { MyRouter } from './components/Router';
+import { AppStateContextProvider } from './contexts/AppStateContext';
+
+const App = () => {
+  return (
+    <Layout style={{ height: '100%' }}>
+      <AppStateContextProvider>
+        <MyRouter />
+      </AppStateContextProvider>
+    </Layout>
+  );
+};
+
+export default App;

chinook/app/front/src/api/axiosInstance.js

@@ -0,0 +1,168 @@
+import axios from 'axios';
+import { getUserFromLS, getLocaleFromLS } from '../util/localStorageService';
+import { emitter } from '../util/EventEmitter';
+
+const TIMEOUT = 2000;
+const RETRY_COUNT = 3;
+
+/**
+ * This is axios instance
+ */
+const axiosInstance = axios.create({
+  baseURL: process.env.SERVICE_URL,
+  timeout: TIMEOUT,
+  retryDelay: TIMEOUT,
+  retry: RETRY_COUNT,
+});
+
+/**
+ * Changing user axios default params,
+ * which are used in api call functions (calls.js)
+ * @param {*} currentUser current user from react state and local storage
+ */
+function changeUserDefaults(currentUser) {
+  if (currentUser) {
+    axiosInstance.defaults.headers.common.Authorization = `Basic ${currentUser.accessToken}`;
+    axiosInstance.defaults.userID = currentUser.ID;
+    if (currentUser.roles.includes('customer')) {
+      axiosInstance.defaults.userEntity = `Customers/${currentUser.ID}`;
+      axiosInstance.defaults.tracksEntity = 'MarkedTracks';
+    } else {
+      axiosInstance.defaults.userEntity = `Employees/${currentUser.ID}`;
+      axiosInstance.defaults.tracksEntity = 'Tracks';
+    }
+  } else {
+    axiosInstance.defaults.tracksEntity = 'Tracks';
+  }
+}
+/**
+ * This func changing axios instance default params
+ * @param {*} locale current locale from react state and local storage
+ */
+function changeLocaleDefaults(locale) {
+  if (locale) {
+    axiosInstance.defaults.headers.common['Accept-language'] = locale;
+  }
+}
+
+/**
+ * Init axios defaults
+ */
+const user = getUserFromLS();
+const locale = getLocaleFromLS();
+changeUserDefaults(user);
+changeLocaleDefaults(locale);
+
+/**
+ * Retry request if response time is too long
+ * See link below
+ * {@link https://github.com/axios/axios/issues/164#issuecomment-327837467 GitHub}
+ * @param {*} err response error object
+ */
+function axiosRetryInterceptor(err) {
+  const config = err.config;
+  // If config does not exist or the retry option is not set, reject
+  if (config && config.retry) {
+    // Set the variable for keeping track of the retry count
+    config.retryCount = config.retryCount || 0;
+
+    // Check if we've maxed out the total number of retries
+    if (config.retryCount >= config.retry) {
+      // Reject with the error
+      return Promise.reject(err);
+    }
+
+    // Increase the retry count
+    config.retryCount += 1;
+
+    // Create new promise to handle exponential backoff
+    const backoff = new Promise((resolve) => {
+      setTimeout(() => {
+        resolve();
+      }, config.retryDelay || 1);
+    });
+
+    // Return the promise in which recalls axios to retry the request
+    return backoff.then(() => {
+      return axios(config);
+    });
+  }
+}
+
+/**
+ * Things below needed for refresh tokens mechanism implementation
+ */
+let isRefreshing = false;
+let subscribers = [];
+const refreshTokens = (refreshToken) => {
+  return axiosInstance.post(
+    'users/refreshTokens',
+    { refreshToken },
+    {
+      headers: { 'content-type': 'application/json' },
+    }
+  );
+};
+
+/**
+ * Refresh tokens interceptor
+ * See link below
+ * {@link https://gist.github.com/mkjiau/650013a99c341c9f23ca00ccb213db1c#gistcomment-3536511 GitHub}
+ * @param {*} error error response object
+ */
+function axiosRefreshTokensInterceptor(error) {
+  const originalRequest = error.config;
+  const user = getUserFromLS();
+
+  if (error.response && error.response.status === 401 && !!user) {
+    if (originalRequest.url === 'users/login') {
+      return Promise.reject(error);
+    }
+
+    // if users/refreshTokens request failed
+    if (isRefreshing && originalRequest.url === 'users/refreshTokens') {
+      subscribers.forEach((request) => request.reject(error));
+      subscribers = [];
+      isRefreshing = false;
+      return Promise.reject(error);
+    }
+
+    // if got a 401 error we sending users/refreshTokens request
+    if (!isRefreshing) {
+      isRefreshing = true;
+
+      refreshTokens(user.refreshToken)
+        .then((response) => {
+          emitter.emit('UPDATE_USER', response.data);
+          subscribers.forEach((request) => request.resolve(response.data.accessToken));
+          subscribers = [];
+          isRefreshing = false;
+        })
+        .catch(() => {
+          emitter.emit('UPDATE_USER', undefined);
+        });
+    }
+
+    // holding requests which should be sended after users/refreshTokens complete
+    // otherwise if users/refreshTokens failed an error will be thrown
+    return new Promise((resolve, reject) => {
+      subscribers.push({
+        resolve: (newAccessToken) => {
+          originalRequest.headers.Authorization = `Basic ${newAccessToken}`;
+          resolve(axiosInstance(originalRequest));
+        },
+        reject: (err) => {
+          reject(err);
+        },
+      });
+    });
+  }
+}
+
+axiosInstance.interceptors.response.use(null, (error) => {
+  return (
+    axiosRefreshTokensInterceptor(error) || axiosRetryInterceptor(error) || Promise.reject(error)
+  );
+});
+
+export { axiosInstance, changeLocaleDefaults, changeUserDefaults };

chinook/app/front/src/api/calls.js

@@ -0,0 +1,164 @@
+import { isEmpty } from 'lodash';
+import { axiosInstance } from './axiosInstance';
+
+const BROWSE_TRACKS_SERVICE = 'browse-tracks';
+const INVOICES_SERVICE = 'browse-invoices';
+const USER_SERVICE = 'users';
+const MANAGE_STORE = 'manage-store';
+
+const constructGenresQuery = (genreIds) => {
+  return !isEmpty(genreIds)
+    ? ` and ${genreIds.map((value) => `genre_ID eq ${value}`).join(' or ')}`
+    : '';
+};
+
+const fetchTacks = ({ $top = 20, $skip = 0, genreIds = [], substr = '' } = {}) => {
+  const serializeTracksUrl = () => {
+    return `$expand=genre,album($expand=artist)&$top=${$top}&$skip=${$skip}&$filter=${`contains(name,'${substr}')${constructGenresQuery(
+      genreIds
+    )}`}`;
+  };
+
+  return axiosInstance.get(`${BROWSE_TRACKS_SERVICE}/${axiosInstance.defaults.tracksEntity}`, {
+    params: {},
+    paramsSerializer: () => serializeTracksUrl(),
+  });
+};
+
+const countTracks = ({ genreIds = [], substr = '' } = {}) => {
+  const { tracksEntity } = axiosInstance.defaults;
+
+  return axiosInstance.get(
+    `${BROWSE_TRACKS_SERVICE}/${tracksEntity}/$count?$filter=${`contains(name,'${substr}')${constructGenresQuery(
+      genreIds
+    )}`}`
+  );
+};
+
+const fetchGenres = () => {
+  return axiosInstance.get(`${BROWSE_TRACKS_SERVICE}/Genres`);
+};
+
+const invoice = (tracks) => {
+  return axiosInstance.post(
+    `${INVOICES_SERVICE}/invoice`,
+    {
+      tracks,
+    },
+    {
+      headers: { 'content-type': 'application/json' },
+    }
+  );
+};
+
+const fetchPerson = () => {
+  return axiosInstance.get(`${USER_SERVICE}/${axiosInstance.defaults.userEntity}`);
+};
+
+const confirmPerson = (person) => {
+  return axiosInstance.put(
+    `${USER_SERVICE}/${axiosInstance.defaults.userEntity}`,
+    {
+      ...person,
+    },
+    {
+      headers: { 'content-type': 'application/json' },
+    }
+  );
+};
+
+const fetchInvoices = () => {
+  return axiosInstance.get(
+    `${INVOICES_SERVICE}/Invoices?$expand=invoiceItems($expand=track($expand=album($expand=artist)))`
+  );
+};
+
+const cancelInvoice = (ID) => {
+  return axiosInstance.post(
+    `${INVOICES_SERVICE}/cancelInvoice`,
+    {
+      ID,
+    },
+    {
+      headers: { 'content-type': 'application/json' },
+    }
+  );
+};
+
+const fetchAlbumsByName = (substr = '', top) => {
+  return axiosInstance.get(
+    `${BROWSE_TRACKS_SERVICE}/Albums?$filter=${`contains(title,'${substr}')&$top=${top}`}`
+  );
+};
+
+const addTrack = (data) => {
+  return axiosInstance.post(`${MANAGE_STORE}/Tracks`, data, {
+    headers: { 'content-type': 'application/json;IEEE754Compatible=true' },
+  });
+};
+
+const addArtist = (data) => {
+  return axiosInstance.post(`${MANAGE_STORE}/Artists`, data, {
+    headers: { 'content-type': 'application/json' },
+  });
+};
+
+const addAlbum = (data) => {
+  return axiosInstance.post(`${MANAGE_STORE}/Albums`, data, {
+    headers: { 'content-type': 'application/json' },
+  });
+};
+
+const fetchArtistsByName = (substr = '', top) => {
+  return axiosInstance.get(
+    `${MANAGE_STORE}/Artists?$filter=${`contains(name,'${substr}')&$top=${top}`}`
+  );
+};
+
+const login = (data) => {
+  return axiosInstance.post(`${USER_SERVICE}/login`, data, {
+    headers: { 'content-type': 'application/json' },
+  });
+};
+
+const updateTrack = (track) => {
+  return axiosInstance.put(
+    `${MANAGE_STORE}/Tracks/${track.ID}`,
+    {
+      ...track,
+    },
+    {
+      headers: { 'content-type': 'application/json;IEEE754Compatible=true' },
+    }
+  );
+};
+
+const getTrack = (ID) => {
+  return axiosInstance.get(
+    `${BROWSE_TRACKS_SERVICE}/${axiosInstance.defaults.tracksEntity}/${ID}?$expand=genre,album($expand=artist)`
+  );
+};
+
+const deleteTrack = (ID) => {
+  return axiosInstance.delete(`${MANAGE_STORE}/Tracks(${ID})`);
+};
+
+export {
+  fetchTacks,
+  countTracks,
+  fetchGenres,
+  invoice,
+  fetchPerson,
+  confirmPerson,
+  fetchInvoices,
+  cancelInvoice,
+  fetchAlbumsByName,
+  addTrack,
+  addArtist,
+  addAlbum,
+  fetchArtistsByName,
+  login,
+  updateTrack,
+  getTrack,
+  deleteTrack,
+};

chinook/app/front/src/components/ErrorPage.jsx

@@ -0,0 +1,49 @@
+import React from 'react';
+import { useHistory } from 'react-router-dom';
+import { isEmpty } from 'lodash';
+import { Result, Button } from 'antd';
+import { useAppState } from '../hooks/useAppState';
+
+const ErrorPage = () => {
+  const { error, setError } = useAppState();
+  const history = useHistory();
+
+  const onGoHome = () => {
+    setError({});
+    history.push('/');
+  };
+
+  const goLoginPage = () => {
+    setError({});
+    history.push('/login');
+  };
+
+  const goHomeButton = (
+    <Button onClick={onGoHome} key={1} type="primary">
+      Back Home
+    </Button>
+  );
+  const goLoginButton = (
+    <Button onClick={goLoginPage} key={2} type="primary">
+      Login
+    </Button>
+  );
+
+  const errorResultProps = isEmpty(error)
+    ? {
+        status: 404,
+        title: 'Not found',
+        subTitle: 'Sorry, the page you visited does not exist.',
+        extra: goHomeButton,
+      }
+    : {
+        status: [404, 403, 500].includes(error.status) ? error.status : 'error',
+        title: error.statusText,
+        subTitle: error.message,
+        extra: error.status === 401 ? [goHomeButton, goLoginButton] : goHomeButton,
+      };
+
+  return <Result {...errorResultProps} />;
+};
+
+export default ErrorPage;

chinook/app/front/src/components/Header.css

@@ -0,0 +1,3 @@
+.ant-menu-item .anticon {
+  margin: 0;
+}

chinook/app/front/src/components/Header.jsx

@@ -0,0 +1,141 @@
+import React from 'react';
+import { Menu, Badge, Spin, message } from 'antd';
+import { isEmpty } from 'lodash';
+import {
+  CreditCardOutlined,
+  LogoutOutlined,
+  LoginOutlined,
+  LoadingOutlined,
+} from '@ant-design/icons';
+import { useHistory, useLocation } from 'react-router-dom';
+import { useAppState } from '../hooks/useAppState';
+import { setLocaleToLS } from '../util/localStorageService';
+import { changeLocaleDefaults } from '../api/axiosInstance';
+import { emitter } from '../util/EventEmitter';
+import './Header.css';
+import { requireEmployee, requireCustomer, MESSAGE_TIMEOUT } from '../util/constants';
+
+const { SubMenu } = Menu;
+
+const keys = ['/', '/person', '/login', '/manage', '/invoice', '/invoices'];
+const AVAILABLE_LOCALES = ['en', 'fr', 'de'];
+const RELOAD_LOCATION_NUMBER = 0;
+
+const Header = () => {
+  const history = useHistory();
+  const location = useLocation();
+  const { user, invoicedItems, locale, setLocale, loading } = useAppState();
+  const currentKey = [keys.find((key) => key === location.pathname)];
+  const haveInvoicedItems = !isEmpty(invoicedItems);
+  const invoicedItemsLength = invoicedItems.length;
+
+  const onChangeLocale = (value) => {
+    setLocaleToLS(value);
+    changeLocaleDefaults(value);
+    setLocale(value);
+    history.go(RELOAD_LOCATION_NUMBER);
+  };
+  const localeElements = AVAILABLE_LOCALES.filter((localeName) => localeName !== locale).map(
+    (curLocale) => (
+      <Menu.Item key={curLocale} onClick={() => onChangeLocale(curLocale)}>
+        {curLocale}
+      </Menu.Item>
+    )
+  );
+
+  const onUserLogout = () => {
+    emitter.emit('UPDATE_USER', undefined);
+    message.warn(
+      'Now you are not authenticated. Log in to use full functionality',
+      MESSAGE_TIMEOUT
+    );
+    history.push('/');
+  };
+
+  return (
+    <div
+      style={{
+        display: 'flex',
+        justifyContent: 'baseline',
+        alignItems: 'center',
+        paddingLeft: '15vh',
+        paddingRight: '15vh',
+        background: 'white',
+      }}
+    >
+      <Menu theme="light" mode="horizontal" style={{ width: '50%' }} selectedKeys={currentKey}>
+        <Menu.Item key="/" onClick={() => history.push('/')}>
+          Browse
+        </Menu.Item>
+
+        {!!user && (
+          <Menu.Item key="/person" onClick={() => history.push('/person')}>
+            Profile
+          </Menu.Item>
+        )}
+        {requireCustomer(user) && (
+          <Menu.Item key="/invoices" onClick={() => history.push('/invoices')}>
+            Invoices
+          </Menu.Item>
+        )}
+        {requireEmployee(user) && (
+          <Menu.Item key="/manage" onClick={() => history.push('/manage')}>
+            Manages
+          </Menu.Item>
+        )}
+      </Menu>
+
+      <Menu
+        style={{ width: '50%', display: 'flex', justifyContent: 'flex-end' }}
+        theme="light"
+        mode="horizontal"
+        selectedKeys={currentKey}
+      >
+        <Menu.Item>
+          {loading && <Spin indicator={<LoadingOutlined style={{ fontSize: 24 }} spin />} />}
+        </Menu.Item>
+        {haveInvoicedItems && (
+          <Menu.Item
+            style={{
+              width: 40,
+              display: 'flex',
+              justifyContent: 'center',
+            }}
+            onClick={() => history.push('/invoice')}
+            key="/invoice"
+          >
+            <div
+              style={{
+                height: '100%',
+              }}
+            >
+              <Badge
+                size="default"
+                style={{ backgroundColor: '#2db7f5' }}
+                count={invoicedItemsLength}
+              >
+                <CreditCardOutlined style={{ fontSize: 16 }} />
+              </Badge>
+            </div>
+          </Menu.Item>
+        )}
+        <SubMenu title={locale}>{localeElements}</SubMenu>
+        {user ? (
+          <Menu.Item
+            onClick={onUserLogout}
+            danger
+            icon={<LogoutOutlined style={{ fontSize: 16 }} />}
+          />
+        ) : (
+          <Menu.Item
+            key="/login"
+            onClick={() => history.push('/login')}
+            icon={<LoginOutlined style={{ fontSize: 16 }} />}
+          />
+        )}
+      </Menu>
+    </div>
+  );
+};
+
+export default Header;

chinook/app/front/src/components/InvoicePage.jsx

@@ -0,0 +1,101 @@
+import React from 'react';
+import { Table, Button, message } from 'antd';
+import { useHistory } from 'react-router-dom';
+import { useAppState } from '../hooks/useAppState';
+import { invoice } from '../api/calls';
+import { useErrors } from '../hooks/useErrors';
+import { MESSAGE_TIMEOUT } from '../util/constants';
+
+const columns = [
+  {
+    title: 'Name',
+    dataIndex: 'name',
+  },
+  {
+    title: 'Artist',
+    dataIndex: 'artist',
+  },
+  {
+    title: 'Album',
+    dataIndex: 'albumTitle',
+  },
+  {
+    title: 'Price',
+    dataIndex: 'unitPrice',
+  },
+];
+
+const InvoicePage = () => {
+  const history = useHistory();
+  const { handleError } = useErrors();
+  const { user, invoicedItems, setInvoicedItems, setLoading } = useAppState();
+
+  const data = invoicedItems.map(({ ID, ...otherProps }) => ({
+    key: `invoiceItem${ID}`,
+    ...otherProps,
+  }));
+
+  const onBuy = () => {
+    setLoading(true);
+    invoice(
+      invoicedItems.map(({ ID }) => ({
+        ID,
+      }))
+    )
+      .then(() => {
+        setInvoicedItems([]);
+        message.success('Invoice successfully completed', MESSAGE_TIMEOUT);
+        history.push('/invoices');
+      })
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  };
+  const onCancel = () => {
+    setInvoicedItems([]);
+    history.push('/');
+  };
+  const goLogin = () => {
+    history.push('/login');
+  };
+
+  return (
+    <div style={{ backgroundColor: 'white', padding: 10 }}>
+      <Table
+        bordered={false}
+        pagination={false}
+        columns={columns}
+        dataSource={data}
+        size="middle"
+        footer={() => (
+          <div
+            style={{
+              display: 'flex',
+              justifyContent: 'flex-end',
+              padding: 5,
+            }}
+          >
+            {user ? (
+              <>
+                <Button type="primary" size="large" onClick={onBuy}>
+                  Buy
+                </Button>
+                <Button size="large" style={{ marginLeft: 5 }} onClick={onCancel} danger>
+                  Cancel
+                </Button>
+              </>
+            ) : (
+              <section>
+                <Button type="primary" size="large" onClick={goLogin}>
+                  Login
+                </Button>
+                <span> to buy selected</span>
+              </section>
+            )}
+          </div>
+        )}
+      />
+    </div>
+  );
+};
+
+export default InvoicePage;

chinook/app/front/src/components/Login.jsx

@@ -0,0 +1,107 @@
+import React from 'react';
+import { Form, Input, Button, Checkbox, message } from 'antd';
+import { useHistory } from 'react-router-dom';
+import { login } from '../api/calls';
+import { useAppState } from '../hooks/useAppState';
+import { useErrors } from '../hooks/useErrors';
+import { MESSAGE_TIMEOUT } from '../util/constants';
+import { emitter } from '../util/EventEmitter';
+
+const layout = {
+  labelCol: {
+    span: 8,
+  },
+  wrapperCol: {
+    span: 8,
+  },
+};
+const tailLayout = {
+  wrapperCol: {
+    offset: 8,
+    span: 8,
+  },
+};
+
+const Login = () => {
+  const [form] = Form.useForm();
+  const history = useHistory();
+  const { setLoading, setInvoicedItems } = useAppState();
+  const { handleError } = useErrors();
+
+  const onFinish = (values) => {
+    setLoading(true);
+    login({ email: values.email, password: values.password })
+      .then(({ data: user }) => {
+        emitter.emit('UPDATE_USER', user);
+        if (user.roles.includes('employee')) {
+          setInvoicedItems([]);
+        }
+        history.push('/');
+      })
+      .catch((error) => {
+        console.log(error);
+        if (error.response && error.response.status === 401) {
+          form.resetFields();
+          message.error('Invalid credentials!', MESSAGE_TIMEOUT);
+        } else {
+          handleError(error);
+        }
+      })
+      .finally(() => setLoading(false));
+  };
+
+  const onFinishFailed = (errorInfo) => {
+    console.log('Validation Failed:', errorInfo);
+  };
+
+  return (
+    <Form
+      form={form}
+      {...layout}
+      name="basic"
+      initialValues={{
+        remember: true,
+      }}
+      onFinish={onFinish}
+      onFinishFailed={onFinishFailed}
+    >
+      <Form.Item
+        label="Email"
+        name="email"
+        rules={[
+          {
+            required: true,
+            message: 'Please input your email!',
+          },
+        ]}
+      >
+        <Input />
+      </Form.Item>
+
+      <Form.Item
+        label="Password"
+        name="password"
+        rules={[
+          {
+            required: true,
+            message: 'Please input your password!',
+          },
+        ]}
+      >
+        <Input.Password style={{}} />
+      </Form.Item>
+
+      <Form.Item {...tailLayout} name="remember" valuePropName="checked">
+        <Checkbox>Remember me</Checkbox>
+      </Form.Item>
+
+      <Form.Item {...tailLayout}>
+        <Button type="primary" htmlType="submit">
+          Submit
+        </Button>
+      </Form.Item>
+    </Form>
+  );
+};
+
+export default Login;

chinook/app/front/src/components/ManageStore.jsx

@@ -0,0 +1,115 @@
+import React, { useState, useMemo, useEffect } from 'react';
+import { Form, Radio, Button, message } from 'antd';
+import { TrackForm } from './manage-store/TrackForm';
+import { AddArtistForm } from './manage-store/AddArtistForm';
+import { AddAlbumForm } from './manage-store/AddAlbumForm';
+import { useErrors } from '../hooks/useErrors';
+import { useAppState } from '../hooks/useAppState';
+import { addTrack, addArtist, addAlbum } from '../api/calls';
+import { MESSAGE_TIMEOUT } from '../util/constants';
+
+const FORM_TYPES = {
+  track: 'track',
+  artist: 'artist',
+  album: 'album',
+  playlist: '',
+};
+
+const chooseForm = (type) => {
+  return (
+    (type === 'track' && <TrackForm />) ||
+    (type === 'artist' && <AddArtistForm />) ||
+    (type === 'album' && <AddAlbumForm />)
+  );
+};
+
+const ManageStore = () => {
+  const [form] = Form.useForm();
+  const { handleError } = useErrors();
+  const { setLoading } = useAppState();
+  const [formType, setFormType] = useState('track');
+
+  useEffect(() => {
+    form.resetFields();
+  }, [formType]);
+
+  const formElement = useMemo(() => {
+    return chooseForm(formType);
+  }, [formType]);
+
+  const onChangeForm = (event) => {
+    setFormType(event.target.value);
+  };
+
+  const sendCreateRequest = ({ type, ...data }) => {
+    setLoading(true);
+
+    let promise;
+    switch (type) {
+      case FORM_TYPES.track:
+        promise = addTrack({
+          name: data.name,
+          composer: data.composer,
+          album: { ID: data.albumID },
+          genre: { ID: data.genreID },
+          unitPrice: data.unitPrice.toString(),
+        });
+        break;
+      case FORM_TYPES.artist:
+        promise = addArtist(data);
+        break;
+      case FORM_TYPES.album:
+        promise = addAlbum({ title: data.name, artist: { ID: data.artistID } });
+        break;
+      default:
+    }
+
+    promise
+      .then(() => {
+        message.success('Entity successfully created', MESSAGE_TIMEOUT);
+        form.resetFields();
+      })
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  };
+
+  return (
+    <Form
+      style={{ width: 700 }}
+      form={form}
+      labelCol={{
+        span: 4,
+      }}
+      wrapperCol={{
+        span: 14,
+      }}
+      layout="horizontal"
+      initialValues={{
+        type: formType,
+      }}
+      type={formType}
+      onFinish={sendCreateRequest}
+      onFinishFailed={() => console.log('Not valid params provided')}
+    >
+      <Form.Item label="Entity" name="type">
+        <Radio.Group onChange={onChangeForm}>
+          <Radio.Button value="track">Track</Radio.Button>
+          <Radio.Button value="album">Album</Radio.Button>
+          <Radio.Button value="artist">Artist</Radio.Button>
+        </Radio.Group>
+      </Form.Item>
+      {formElement}
+      <Form.Item
+        type="primary"
+        wrapperCol={{
+          span: 14,
+          offset: 4,
+        }}
+      >
+        <Button onClick={() => form.submit()}>Create</Button>
+      </Form.Item>
+    </Form>
+  );
+};
+
+export default ManageStore;

chinook/app/front/src/components/MyInvoicesPage.jsx

@@ -0,0 +1,170 @@
+import React, { useState, useEffect, useMemo, useCallback } from 'react';
+import PropTypes from 'prop-types';
+import { Button, message, Tag, Collapse, Table, Spin } from 'antd';
+import moment from 'moment';
+import { useErrors } from '../hooks/useErrors';
+import { useAppState } from '../hooks/useAppState';
+import { cancelInvoice, fetchInvoices } from '../api/calls';
+import { MESSAGE_TIMEOUT } from '../util/constants';
+
+const { Panel } = Collapse;
+const INVOICE_STATUS = {
+  2: {
+    tagTitle: 'Shipped',
+    color: 'green',
+  },
+  1: {
+    tagTitle: 'Submitted',
+    color: 'processing',
+    canCancel: true,
+  },
+  '-1': {
+    tagTitle: 'Cancelled',
+    color: 'default',
+  },
+};
+const CANCELLED_STATUS = -1;
+const DATE_TIME_FORMAT_PATTERN = 'LLLL';
+const UTC_DATE_TIME_FORMAT = 'YYYY-MM-DDThh:mm:ssZ';
+const INVOICE_ITEMS_COLUMNS = [
+  {
+    title: 'Track name',
+    dataIndex: 'name',
+  },
+  {
+    title: 'Artist',
+    dataIndex: 'artistName',
+  },
+  {
+    title: 'Album',
+    dataIndex: 'albumTitle',
+  },
+  {
+    title: 'Price',
+    dataIndex: 'unitPrice',
+  },
+];
+const LEVERAGE_DURATION = 1; // in hours
+const STATUSES = { submitted: 1, shipped: 2, canceled: -1 };
+
+const isLeverageTimeExpired = (utcNowTimestamp, invoiceDate) => {
+  const duration = moment.duration(moment(utcNowTimestamp).diff(moment(invoiceDate).valueOf()));
+  return duration.asHours() > LEVERAGE_DURATION;
+};
+
+const chooseStatus = (utcNowTimestamp, invoiceDate, statusFromDb) => {
+  if (isLeverageTimeExpired(utcNowTimestamp, invoiceDate) && statusFromDb !== STATUSES.canceled) {
+    return INVOICE_STATUS[STATUSES.shipped];
+  }
+  return INVOICE_STATUS[statusFromDb];
+};
+
+const ExtraHeader = ({ ID, invoiceDate, status: initialStatus }) => {
+  const { loading, setLoading } = useAppState();
+  const { handleError } = useErrors();
+  const [loadingHeaderId, setLoadingHeaderId] = useState();
+  const [status, setStatus] = useState(initialStatus);
+
+  const statusConfig = useMemo(() => {
+    const utcNowTimestamp = moment(moment().utc().format(UTC_DATE_TIME_FORMAT)).valueOf();
+    return chooseStatus(utcNowTimestamp, invoiceDate, status);
+  }, [status]);
+
+  const onCancelInvoice = (event, ID) => {
+    event.stopPropagation();
+    setLoading(true);
+    setLoadingHeaderId(ID);
+    cancelInvoice(ID)
+      .then(() => {
+        message.success('Invoice successfully cancelled', MESSAGE_TIMEOUT);
+        setLoadingHeaderId(undefined);
+        setStatus(CANCELLED_STATUS);
+      })
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  };
+
+  return (
+    <Spin spinning={loading && loadingHeaderId === ID}>
+      <Tag color={statusConfig.color}>{statusConfig.tagTitle}</Tag>
+      {statusConfig.canCancel && (
+        <Button onClick={(event) => onCancelInvoice(event, ID)} size="small" danger>
+          Cancel
+        </Button>
+      )}
+    </Spin>
+  );
+};
+ExtraHeader.propTypes = {
+  ID: PropTypes.number.isRequired,
+  status: PropTypes.number.isRequired,
+  invoiceDate: PropTypes.string.isRequired,
+};
+
+const MyInvoicesPage = () => {
+  const { handleError } = useErrors();
+  const { setLoading } = useAppState();
+  const [invoices, setInvoices] = useState([]);
+
+  useEffect(() => {
+    setLoading(true);
+    fetchInvoices()
+      .then(({ data: { value } }) => setInvoices(value))
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  }, []);
+
+  const genExtra = useCallback(
+    (ID, status, invoiceDate) => <ExtraHeader ID={ID} status={status} invoiceDate={invoiceDate} />,
+    []
+  );
+  const invoiceElements = useMemo(() => {
+    return invoices.map(({ ID, status, invoiceDate, total, invoiceItems }) => {
+      const invoiceItemsData = invoiceItems.map(
+        ({
+          ID,
+          track: {
+            name,
+            unitPrice,
+            album: {
+              title: albumTitle,
+              artist: { name: artistName },
+            },
+          },
+        }) => ({
+          key: ID,
+          ID,
+          name,
+          unitPrice,
+          albumTitle,
+          artistName,
+        })
+      );
+
+      return (
+        <Panel
+          header={moment(invoiceDate).format(DATE_TIME_FORMAT_PATTERN)}
+          key={ID}
+          extra={genExtra(ID, status, invoiceDate)}
+        >
+          <div>
+            <Table
+              bordered={false}
+              pagination={false}
+              columns={INVOICE_ITEMS_COLUMNS}
+              dataSource={invoiceItemsData}
+              size="middle"
+              footer={() => <span style={{ fontWeight: 600 }}>{`Total price: ${total}`}</span>}
+            />
+          </div>
+        </Panel>
+      );
+    });
+  }, [invoices]);
+
+  return (
+    <div>{invoiceElements && <Collapse expandIconPosition="left">{invoiceElements}</Collapse>}</div>
+  );
+};
+
+export default MyInvoicesPage;

chinook/app/front/src/components/PersonPage.jsx

@@ -0,0 +1,108 @@
+import React, { useState } from 'react';
+import { Form, Button, message, Input } from 'antd';
+import { omit, map } from 'lodash';
+import { fetchPerson, confirmPerson } from '../api/calls';
+import { useErrors } from '../hooks/useErrors';
+import { useAppState } from '../hooks/useAppState';
+import { MESSAGE_TIMEOUT } from '../util/constants';
+import { useAbortableEffect } from '../hooks/useAbortableEffect';
+
+const PERSON_PROP = {
+  address: 'Address ',
+  city: 'City ',
+  country: 'Country ',
+  fax: 'Fax: ',
+  firstName: 'First name: ',
+  lastName: 'Last name: ',
+  phone: 'Phone: ',
+  postalCode: 'Postal code: ',
+  state: 'State',
+  email: 'email',
+  company: 'Company: ',
+};
+
+const PersonPage = () => {
+  const { setLoading } = useAppState();
+  const { handleError } = useErrors();
+  const [form] = Form.useForm();
+  const [person, setPerson] = useState({
+    lastName: '',
+    firstName: '',
+    city: '',
+    state: '',
+    address: '',
+    country: '',
+    phone: '',
+    postalCode: '',
+    fax: '',
+    email: '',
+    company: '',
+  });
+
+  useAbortableEffect((status) => {
+    setLoading(true);
+
+    fetchPerson()
+      .then(({ data }) => {
+        const personData = omit(data, '@odata.context', 'ID');
+        if (!status.aborted) {
+          setPerson(personData);
+        }
+      })
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  }, []);
+
+  const onConfirmChanges = (newPerson) => {
+    setLoading(true);
+    confirmPerson(newPerson)
+      .then(() => {
+        message.success('Person successfully updated', MESSAGE_TIMEOUT);
+      })
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  };
+
+  const personProperties = map(Object.keys(person), (currentKey) => (
+    <div key={currentKey}>
+      <Form.Item label={PERSON_PROP[currentKey]} name={currentKey}>
+        <Input />
+      </Form.Item>
+    </div>
+  ));
+
+  return (
+    <>
+      {person.lastName !== '' && (
+        <Form
+          form={form}
+          labelCol={{
+            span: 4,
+          }}
+          wrapperCol={{
+            span: 14,
+          }}
+          layout="horizontal"
+          onFinish={onConfirmChanges}
+          onFinishFailed={() => console.log('Not valid params provided')}
+          initialValues={{
+            ...person,
+          }}
+        >
+          {personProperties}
+          <Form.Item
+            type="primary"
+            wrapperCol={{
+              span: 14,
+              offset: 4,
+            }}
+          >
+            <Button onClick={() => form.submit()}>Confirm changes</Button>
+          </Form.Item>
+        </Form>
+      )}
+    </>
+  );
+};
+
+export default PersonPage;

chinook/app/front/src/components/Router.jsx

@@ -0,0 +1,58 @@
+import React from 'react';
+import { BrowserRouter as Router, Switch, Route } from 'react-router-dom';
+import { isEmpty } from 'lodash';
+import TracksContainer from './TracksPage';
+import Header from './Header';
+import PersonPage from './PersonPage';
+import ErrorPage from './ErrorPage';
+import InvoicePage from './InvoicePage';
+import ManageStore from './ManageStore';
+import MyInvoicesPage from './MyInvoicesPage';
+import Login from './Login';
+import { withRestrictions } from '../hocs/withRestrictions';
+import { requireEmployee } from '../util/constants';
+
+const RestrictedLogin = withRestrictions(Login, ({ user }) => !user);
+const RestrictedInvoicePage = withRestrictions(
+  InvoicePage,
+  ({ user, invoicedItems }) => !requireEmployee(user) && !isEmpty(invoicedItems)
+);
+const RestrictedPersonPage = withRestrictions(PersonPage, ({ user }) => !!user);
+const RestrictedManageStore = withRestrictions(ManageStore, ({ user }) => requireEmployee(user));
+
+const MyRouter = () => {
+  return (
+    <Router>
+      <Header />
+      <div style={{ padding: '2em 20vh' }}>
+        <React.Suspense fallback={<div>Loading...</div>}>
+          <Switch>
+            <Route exact path={['/index.html', '/tracks', '/']}>
+              <TracksContainer />
+            </Route>
+            <Route exact path="/person">
+              <RestrictedPersonPage />
+            </Route>
+            <Route exact path="/login">
+              <RestrictedLogin />
+            </Route>
+            <Route exact path="/invoice">
+              <RestrictedInvoicePage />
+            </Route>
+            <Route exact path="/invoices">
+              <MyInvoicesPage />
+            </Route>
+            <Route exact path="/manage">
+              <RestrictedManageStore />
+            </Route>
+            <Route path="/">
+              <ErrorPage />
+            </Route>
+          </Switch>
+        </React.Suspense>
+      </div>
+    </Router>
+  );
+};
+
+export { MyRouter };

chinook/app/front/src/components/TracksPage.css

@@ -0,0 +1,4 @@
+.ant-select > div.ant-select-selector {
+  padding: 5px;
+  min-width: 300px;
+}

chinook/app/front/src/components/TracksPage.jsx

@@ -0,0 +1,221 @@
+import React, { useState } from 'react';
+import { debounce } from 'lodash';
+import { Input, Col, Row, Select, Pagination } from 'antd';
+import { Track } from './tracks/Track';
+import { ManagedTrack } from './tracks/ManagedTrack';
+import { useAppState } from '../hooks/useAppState';
+import { useErrors } from '../hooks/useErrors';
+import { fetchTacks, countTracks, fetchGenres } from '../api/calls';
+import { useAbortableEffect } from '../hooks/useAbortableEffect';
+import { requireEmployee } from '../util/constants';
+import './TracksPage.css';
+
+const { Search } = Input;
+const { Option } = Select;
+
+const DEBOUNCE_TIMER = 500;
+const DEBOUNCE_OPTIONS = {
+  leading: true,
+  trailing: false,
+};
+
+const isEven = (value) => {
+  return value % 2 === 0;
+};
+
+const renderGenres = (genres) =>
+  genres.map(({ ID, name }) => (
+    <Option key={ID} value={ID.toString()}>
+      {name}
+    </Option>
+  ));
+
+const TracksContainer = () => {
+  const { setLoading, user } = useAppState();
+  const { handleError } = useErrors();
+  const [state, setState] = useState({
+    tracks: [],
+    genres: [],
+    pagination: {
+      currentPage: 1,
+      totalItems: 0,
+      pageSize: 20,
+    },
+    searchOptions: {
+      substr: '',
+      genreIds: [],
+    },
+  });
+
+  useAbortableEffect((status) => {
+    setLoading(true);
+
+    const countTracksReq = countTracks();
+    const getTracksRequest = fetchTacks();
+    const getGenresReq = fetchGenres();
+
+    Promise.all([countTracksReq, getTracksRequest, getGenresReq])
+      .then(
+        ([
+          { data: totalItems },
+          {
+            data: { value: tracks },
+          },
+          {
+            data: { value: genres },
+          },
+        ]) => {
+          if (!status.aborted) {
+            setState({
+              ...state,
+              tracks,
+              genres,
+              pagination: { ...state.pagination, totalItems },
+            });
+          }
+        }
+      )
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  }, []);
+
+  const onSearch = debounce(
+    () => {
+      setLoading(true);
+      const options = {
+        $top: state.pagination.pageSize,
+        substr: state.searchOptions.substr.replace(/'*/g, (value) =>
+          isEven(value.length) ? value : `${value}'`
+        ),
+        genreIds: state.searchOptions.genreIds,
+      };
+
+      Promise.all([
+        fetchTacks(options),
+        countTracks({
+          substr: options.substr,
+          genreIds: options.genreIds,
+        }),
+      ])
+        .then(([{ data: { value: tracks } }, { data: totalItems }]) =>
+          setState({
+            ...state,
+            tracks,
+            pagination: { ...state.pagination, totalItems },
+          })
+        )
+        .catch(handleError)
+        .finally(() => setLoading(false));
+    },
+    DEBOUNCE_TIMER,
+    DEBOUNCE_OPTIONS
+  );
+  const onSelectChange = (genres) => {
+    setState({
+      ...state,
+      searchOptions: {
+        ...state.searchOptions,
+        genreIds: genres.map((value) => parseInt(value, 10)),
+      },
+    });
+  };
+  const onSearchChange = (event) => {
+    setState({
+      ...state,
+      searchOptions: { ...state.searchOptions, substr: event.target.value },
+    });
+  };
+  const onChangePage = (pageNumber) => {
+    document.querySelector('section.ant-layout').scrollTo({ top: 0, left: 0, behavior: 'smooth' });
+    setLoading(true);
+
+    const options = {
+      $top: state.pagination.pageSize,
+      substr: state.searchOptions.substr,
+      genreIds: state.searchOptions.genreIds,
+      $skip: (pageNumber - 1) * state.pagination.pageSize,
+    };
+    fetchTacks(options)
+      .then((response) =>
+        setState({
+          ...state,
+          tracks: response.data.value,
+          pagination: { ...state.pagination, currentPage: pageNumber },
+        })
+      )
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  };
+  const deleteTrack = (ID) => {
+    setState({
+      ...state,
+      tracks: state.tracks.filter(({ ID: curID }) => curID !== ID),
+    });
+  };
+  const renderTracks = (tracks) => {
+    const isEmployee = requireEmployee(user);
+    const TrackComponent = isEmployee ? ManagedTrack : Track;
+    return tracks.map((track) => {
+      const isAlreadyOrdered = !isEmployee && track.alreadyOrdered;
+      const onDeleteTrack = isEmployee && ((ID) => deleteTrack(ID));
+      return (
+        <Col key={`track-col${track.ID}`} className="gutter-row" span={8}>
+          <TrackComponent
+            initialTrack={track}
+            onDeleteTrack={onDeleteTrack}
+            isAlreadyOrdered={isAlreadyOrdered}
+          />
+        </Col>
+      );
+    });
+  };
+
+  const trackElements = renderTracks(state.tracks);
+  const genreElements = renderGenres(state.genres);
+
+  return (
+    <>
+      <div
+        style={{
+          display: 'flex',
+          alignItems: 'start',
+          maxWidth: 600,
+          paddingBottom: 10,
+        }}
+      >
+        <Select
+          mode="multiple"
+          allowClear
+          style={{ marginRight: 10, borderRadius: 6 }}
+          placeholder="Genres"
+          onChange={(value) => onSelectChange(value)}
+        >
+          {genreElements}
+        </Select>
+        <Search
+          style={{
+            borderRadius: 6,
+          }}
+          placeholder="Search tracks"
+          size="large"
+          onSearch={onSearch}
+          onChange={onSearchChange}
+        />
+      </div>
+      <div>
+        <Row gutter={[{ xs: 8, sm: 16, md: 24, lg: 32 }, 24]}>{trackElements}</Row>
+      </div>
+      <div style={{ display: 'flex', justifyContent: 'center' }}>
+        <Pagination
+          showSizeChanger={false}
+          defaultCurrent={1}
+          total={state.pagination.totalItems}
+          pageSize={state.pagination.pageSize}
+          onChange={onChangePage}
+        />
+      </div>
+    </>
+  );
+};
+
+export default TracksContainer;

chinook/app/front/src/components/manage-store/AddAlbumForm.jsx

@@ -0,0 +1,62 @@
+import React, { useEffect } from 'react';
+import { Form, Input, Select } from 'antd';
+import { useSearch } from '@umijs/hooks';
+import { useErrors } from '../../hooks/useErrors';
+import { fetchArtistsByName } from '../../api/calls';
+
+const REQUIRED = [
+  {
+    required: true,
+    message: 'This filed is required!',
+  },
+];
+const ARTISTS_LIMIT = 10;
+
+const getArtists = function (value) {
+  return fetchArtistsByName(value, ARTISTS_LIMIT)
+    .then((response) => response.data.value)
+    .catch(this.handleError);
+};
+
+const AddAlbumForm = () => {
+  const { handleError } = useErrors();
+  const {
+    data: artists,
+    loading: isArtistsLoading,
+    onChange: onChangeArtistInput,
+    cancel: onArtistCancel,
+  } = useSearch(getArtists.bind({ handleError }));
+
+  useEffect(() => {
+    onChangeArtistInput();
+  }, []);
+
+  return (
+    <>
+      <h3>Add album</h3>
+      <Form.Item label="Name" name="name" rules={REQUIRED}>
+        <Input />
+      </Form.Item>
+      <Form.Item label="Artist" name="artistID" rules={REQUIRED}>
+        <Select
+          showSearch
+          placeholder="Select artist"
+          filterOption={false}
+          onSearch={onChangeArtistInput}
+          loading={isArtistsLoading}
+          onBlur={onArtistCancel}
+          style={{ width: 300 }}
+        >
+          {artists &&
+            artists.map((artist) => (
+              <Select.Option key={artist.name} value={artist.ID}>
+                {artist.name}
+              </Select.Option>
+            ))}
+        </Select>
+      </Form.Item>
+    </>
+  );
+};
+
+export { AddAlbumForm };

chinook/app/front/src/components/manage-store/AddArtistForm.jsx

@@ -0,0 +1,22 @@
+import React from 'react';
+import { Form, Input } from 'antd';
+
+const REQUIRED = [
+  {
+    required: true,
+    message: 'This filed is required!',
+  },
+];
+
+const AddArtistForm = () => {
+  return (
+    <>
+      <h3>Add artist</h3>
+      <Form.Item label="Name" name="name" rules={REQUIRED}>
+        <Input />
+      </Form.Item>
+    </>
+  );
+};
+
+export { AddArtistForm };

chinook/app/front/src/components/manage-store/TrackForm.jsx

@@ -0,0 +1,96 @@
+import React, { useEffect, useState } from 'react';
+import PropTypes from 'prop-types';
+import { Form, Input, Select, InputNumber } from 'antd';
+import { head } from 'lodash';
+import { useSearch } from '@umijs/hooks';
+import { useAppState } from '../../hooks/useAppState';
+import { fetchAlbumsByName, fetchGenres } from '../../api/calls';
+import { useErrors } from '../../hooks/useErrors';
+
+const ALBUMS_LIMIT = 10;
+const REQUIRED = [
+  {
+    required: true,
+    message: 'This filed is required!',
+  },
+];
+
+function getAlbums(value) {
+  return fetchAlbumsByName(value, ALBUMS_LIMIT)
+    .then((response) => response.data.value)
+    .catch(this.handleError);
+}
+
+const TrackForm = ({ initialAlbumTitle }) => {
+  const { handleError } = useErrors();
+  const {
+    data: albums,
+    loading: isAlbumsLoading,
+    onChange: onChangeAlbumInput,
+    cancel: onAlbumCancel,
+  } = useSearch(getAlbums.bind({ handleError }));
+  const { setLoading } = useAppState();
+  const [genres, setGenres] = useState([]);
+
+  useEffect(() => {
+    setLoading(true);
+    Promise.all([fetchGenres(), onChangeAlbumInput(initialAlbumTitle)])
+      .then((responses) => setGenres(head(responses).data.value))
+      .catch(handleError)
+      .finally(() => setLoading(false));
+  }, []);
+
+  return (
+    <div>
+      <Form.Item label="Name" name="name" rules={REQUIRED}>
+        <Input />
+      </Form.Item>
+      <Form.Item label="Composer" name="composer" rules={REQUIRED}>
+        <Input />
+      </Form.Item>
+      <Form.Item label="Album" name="albumID" rules={REQUIRED}>
+        <Select
+          showSearch
+          placeholder="Select album"
+          filterOption={false}
+          onSearch={onChangeAlbumInput}
+          loading={isAlbumsLoading}
+          onBlur={onAlbumCancel}
+        >
+          {albums &&
+            albums.map((album) => (
+              <Select.Option key={album.title} value={album.ID}>
+                {album.title}
+              </Select.Option>
+            ))}
+        </Select>
+      </Form.Item>
+      <Form.Item label="Genre" name="genreID" rules={REQUIRED}>
+        <Select showSearch placeholder="Select genre" filterOption={false}>
+          {genres &&
+            genres.map((genre) => (
+              <Select.Option key={genre.name} value={genre.ID}>
+                {genre.name}
+              </Select.Option>
+            ))}
+        </Select>
+      </Form.Item>
+      <Form.Item label="Unit price" name="unitPrice" precision={2} rules={REQUIRED}>
+        <InputNumber
+          precision={2}
+          decimalSeparator="."
+          parser={(value) => value.replace(/\$\s?|(,*)/g, '')}
+        />
+      </Form.Item>
+    </div>
+  );
+};
+
+TrackForm.propTypes = {
+  initialAlbumTitle: PropTypes.string,
+};
+TrackForm.defaultProps = {
+  initialAlbumTitle: undefined,
+};
+
+export { TrackForm };

chinook/app/front/src/components/tracks/DeleteAction.jsx

@@ -0,0 +1,44 @@
+import React, { useState } from 'react';
+import PropTypes from 'prop-types';
+import { Modal, message } from 'antd';
+import { DeleteOutlined } from '@ant-design/icons';
+import { deleteTrack } from '../../api/calls';
+import { useErrors } from '../../hooks/useErrors';
+import { MESSAGE_TIMEOUT } from '../../util/constants';
+
+const DeleteAction = ({ ID, onDeleteTrack }) => {
+  const [modalVisible, setModalVisible] = useState(false);
+  const { handleError } = useErrors();
+
+  const onOk = () => {
+    setModalVisible(false);
+    deleteTrack(ID)
+      .then(() => {
+        onDeleteTrack();
+        setModalVisible(false);
+        message.success('Track successfully deleted!', MESSAGE_TIMEOUT);
+      })
+      .catch(handleError);
+  };
+
+  const onCancel = () => setModalVisible(false);
+  const onOpenModal = () => {
+    setModalVisible(true);
+  };
+
+  return (
+    <>
+      <DeleteOutlined onClick={onOpenModal}>Delete</DeleteOutlined>
+      <Modal title="Confirm" visible={modalVisible} onOk={onOk} onCancel={onCancel}>
+        <p>Are You really want to delete this track?</p>
+      </Modal>
+    </>
+  );
+};
+
+DeleteAction.propTypes = {
+  ID: PropTypes.number.isRequired,
+  onDeleteTrack: PropTypes.func.isRequired,
+};
+
+export { DeleteAction };

chinook/app/front/src/components/tracks/EditAction.jsx

@@ -0,0 +1,117 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { Button, Modal, Form, message } from 'antd';
+import { EditOutlined, LoadingOutlined } from '@ant-design/icons';
+import { useErrors } from '../../hooks/useErrors';
+import { TrackForm } from '../manage-store/TrackForm';
+import { updateTrack, getTrack } from '../../api/calls';
+import { MESSAGE_TIMEOUT } from '../../util/constants';
+
+const EditAction = ({ ID, name, composer, genre, unitPrice, album, afterTrackUpdate }) => {
+  const [visible, setVisible] = React.useState(false);
+  const [confirmLoading, setConfirmLoading] = React.useState(false);
+  const [updateLoading, setUpdateLoading] = React.useState(false);
+  const [form] = Form.useForm();
+  const { handleError } = useErrors();
+
+  const onShowModal = () => {
+    setVisible(true);
+  };
+
+  const afterCloseModal = () => {
+    setUpdateLoading(true);
+    getTrack(ID)
+      .then((response) => {
+        afterTrackUpdate(response.data);
+        setUpdateLoading(false);
+      })
+      .catch(handleError);
+  };
+
+  const onFinish = (value) => {
+    setConfirmLoading(true);
+    updateTrack({
+      ID,
+      name: value.name,
+      composer: value.composer,
+      album: { ID: value.albumID },
+      genre: { ID: value.genreID },
+      unitPrice: value.unitPrice.toString(),
+    })
+      .then(() => {
+        message.success('Track successfully updated!', MESSAGE_TIMEOUT);
+        setConfirmLoading(false);
+        setVisible(false);
+        afterCloseModal();
+      })
+      .catch(handleError);
+  };
+
+  const handleOk = () => {
+    form.submit();
+  };
+
+  const handleCancel = () => {
+    setVisible(false);
+  };
+
+  return (
+    <>
+      {updateLoading ? <LoadingOutlined /> : <EditOutlined onClick={onShowModal} />}
+      <Modal
+        title="Edit track"
+        visible={visible}
+        confirmLoading={confirmLoading}
+        onOk={handleOk}
+        onCancel={handleCancel}
+        width={600}
+        footer={[
+          <Button key="back" onClick={handleCancel}>
+            Cancel
+          </Button>,
+          <Button key="submit" type="primary" loading={confirmLoading} onClick={handleOk}>
+            Submit
+          </Button>,
+        ]}
+      >
+        <Form
+          form={form}
+          labelCol={{
+            span: 4,
+          }}
+          wrapperCol={{
+            span: 14,
+          }}
+          layout="horizontal"
+          onFinish={onFinish}
+          onFinishFailed={() => console.log('Not valid params provided')}
+          initialValues={{
+            name,
+            composer,
+            genreID: genre.ID,
+            albumID: album.ID,
+            unitPrice,
+          }}
+        >
+          <TrackForm initialAlbumTitle={album.title} />
+        </Form>
+      </Modal>
+    </>
+  );
+};
+
+EditAction.propTypes = {
+  ID: PropTypes.number.isRequired,
+  name: PropTypes.string.isRequired,
+  composer: PropTypes.string,
+  genre: PropTypes.object.isRequired,
+  unitPrice: PropTypes.number.isRequired,
+  album: PropTypes.object.isRequired,
+  afterTrackUpdate: PropTypes.func.isRequired,
+};
+
+EditAction.defaultProps = {
+  composer: undefined,
+};
+
+export { EditAction };

chinook/app/front/src/components/tracks/ManagedTrack.css

@@ -0,0 +1,7 @@
+span > span.anticon.anticon-delete:hover {
+  color: #ff4d4f;
+}
+
+.card-element {
+  transition: opacity 0.5s ease-in-out;
+}

chinook/app/front/src/components/tracks/ManagedTrack.jsx

@@ -0,0 +1,48 @@
+import React, { useState, useRef } from 'react';
+import { Card } from 'antd';
+import PropTypes from 'prop-types';
+import { EditAction } from './EditAction';
+import { DeleteAction } from './DeleteAction';
+import { TrackCardBody } from './TrackCardBody';
+import './ManagedTrack.css';
+
+const ManagedTrack = ({ initialTrack, onDeleteTrack }) => {
+  const trackElement = useRef();
+  const [track, setTrack] = useState(initialTrack);
+
+  return (
+    <div className="card-element" ref={trackElement}>
+      <Card
+        actions={[
+          <DeleteAction
+            ID={track.ID}
+            onDeleteTrack={() => {
+              trackElement.current.style.opacity = 0;
+              setTimeout(() => onDeleteTrack(track.ID), 500);
+            }}
+          />,
+          <EditAction
+            ID={track.ID}
+            name={track.name}
+            composer={track.composer}
+            album={track.album}
+            genre={track.genre}
+            unitPrice={track.unitPrice}
+            afterTrackUpdate={(value) => setTrack(value)}
+          />,
+        ]}
+        title={track.name}
+        bordered={false}
+      >
+        <TrackCardBody track={track} />
+      </Card>
+    </div>
+  );
+};
+
+ManagedTrack.propTypes = {
+  initialTrack: PropTypes.object.isRequired,
+  onDeleteTrack: PropTypes.func.isRequired,
+};
+
+export { ManagedTrack };

chinook/app/front/src/components/tracks/Track.jsx

@@ -0,0 +1,63 @@
+import React, { useState, useRef } from 'react';
+import PropTypes from 'prop-types';
+import { Card, Button } from 'antd';
+import { PlusOutlined, MinusOutlined } from '@ant-design/icons';
+import { useAppState } from '../../hooks/useAppState';
+import { TrackCardBody } from './TrackCardBody';
+
+const Track = ({ initialTrack, isAlreadyOrdered }) => {
+  const trackElement = useRef();
+  const { setInvoicedItems, invoicedItems } = useAppState();
+  const [isJustInvoiced, setIsJustInvoiced] = useState(
+    invoicedItems.find((curTrack) => curTrack.ID === initialTrack.ID)
+  );
+
+  const onChangedStatus = () => {
+    const newIsJustInvoiced = !isJustInvoiced;
+    if (newIsJustInvoiced) {
+      setInvoicedItems([
+        ...invoicedItems,
+        {
+          ID: initialTrack.ID,
+          name: initialTrack.name,
+          artist: initialTrack.album.artist.name,
+          albumTitle: initialTrack.album.title,
+          unitPrice: initialTrack.unitPrice,
+        },
+      ]);
+    } else {
+      setInvoicedItems(invoicedItems.filter(({ ID: curID }) => curID !== initialTrack.ID));
+    }
+    setIsJustInvoiced(newIsJustInvoiced);
+  };
+
+  return (
+    <div className="card-element" ref={trackElement}>
+      <Card
+        actions={[
+          <>
+            {!isAlreadyOrdered && (
+              <Button onClick={onChangedStatus} danger={isJustInvoiced}>
+                {isJustInvoiced ? <MinusOutlined /> : <PlusOutlined />}
+              </Button>
+            )}
+          </>,
+        ]}
+        title={initialTrack.name}
+        bordered={false}
+      >
+        <TrackCardBody track={initialTrack} />
+      </Card>
+    </div>
+  );
+};
+
+Track.propTypes = {
+  initialTrack: PropTypes.object.isRequired,
+  isAlreadyOrdered: PropTypes.bool,
+};
+Track.defaultProps = {
+  isAlreadyOrdered: undefined,
+};
+
+export { Track };

chinook/app/front/src/components/tracks/TrackCardBody.jsx

@@ -0,0 +1,41 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+const TrackCardBody = ({ track }) => {
+  return (
+    <>
+      <div>
+        Artist:
+        <span style={{ fontWeight: 600 }}>{track.album.artist.name}</span>
+      </div>
+      <div>
+        Album:
+        <span style={{ fontWeight: 600 }}>{track.album.title}</span>
+      </div>
+      <div>
+        Genre:
+        <span style={{ fontWeight: 600 }}>{track.genre.name}</span>
+      </div>
+      <div>
+        {track.composer && (
+          <span>
+            Compositor:
+            <span style={{ fontWeight: 600 }}>{track.composer}</span>
+          </span>
+        )}
+      </div>
+      <div style={{ display: 'flex', justifyContent: 'space-between' }}>
+        <span>
+          Price:
+          <span style={{ fontWeight: 600 }}>{track.unitPrice}</span>
+        </span>
+      </div>
+    </>
+  );
+};
+
+TrackCardBody.propTypes = {
+  track: PropTypes.object.isRequired,
+};
+
+export { TrackCardBody };

chinook/app/front/src/contexts/AppStateContext.jsx

@@ -0,0 +1,66 @@
+import React, { useMemo, createContext, useState, useEffect } from 'react';
+import PropTypes from 'prop-types';
+import { getUserFromLS, getLocaleFromLS, setUserToLS } from '../util/localStorageService';
+import { changeUserDefaults } from '../api/axiosInstance';
+import { emitter } from '../util/EventEmitter';
+
+const globalContext = {
+  error: {},
+  loading: true,
+  user: {
+    ID: undefined,
+    roles: [],
+    email: undefined,
+    accessToken: undefined,
+    refreshToken: undefined,
+  },
+  locale: undefined,
+  invoicedItems: [],
+  notifications: [],
+};
+const AppStateContext = createContext(globalContext);
+
+const AppStateContextProvider = ({ children }) => {
+  const [invoicedItems, setInvoicedItems] = useState([]);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState({});
+  const [user, setUser] = useState(getUserFromLS());
+  const [locale, setLocale] = useState(getLocaleFromLS());
+
+  useEffect(() => {
+    const updateUser = (newUser) => {
+      console.log('USER_UPDATE WAS TRIGGERED');
+      changeUserDefaults(newUser);
+      setUserToLS(newUser);
+      setUser(newUser);
+    };
+    emitter.on('UPDATE_USER', updateUser);
+    return () => {
+      emitter.removeListener('UPDATE_USER', updateUser);
+    };
+  }, []);
+
+  const value = useMemo(
+    () => ({
+      error,
+      loading,
+      invoicedItems,
+      user,
+      locale,
+      setLoading,
+      setError,
+      setInvoicedItems,
+      setUser,
+      setLocale,
+    }),
+    [locale, user, loading, error, invoicedItems]
+  );
+
+  return <AppStateContext.Provider value={value}>{children}</AppStateContext.Provider>;
+};
+
+AppStateContextProvider.propTypes = {
+  children: PropTypes.element.isRequired,
+};
+
+export { AppStateContextProvider, AppStateContext };

chinook/app/front/src/hocs/withRestrictions.jsx

@@ -0,0 +1,16 @@
+import React from 'react';
+import { Redirect } from 'react-router-dom';
+import { useAppState } from '../hooks/useAppState';
+
+const withRestrictions = (Component, isUserMeetRestrictions) => {
+  return (props) => {
+    const { user, invoicedItems } = useAppState();
+    return isUserMeetRestrictions({ user, invoicedItems }) ? (
+      <Component {...props} />
+    ) : (
+      <Redirect exact to="/error" />
+    );
+  };
+};
+
+export { withRestrictions };

chinook/app/front/src/hooks/useAbortableEffect.js

@@ -0,0 +1,22 @@
+import { useEffect } from 'react';
+
+function useAbortableEffect(effect, dependencies) {
+  const status = {}; // mutable status object
+  useEffect(() => {
+    status.aborted = false;
+    // pass the mutable object to the effect callback
+    // store the returned value for cleanup
+    const cleanUpFn = effect(status);
+    return () => {
+      // mutate the object to signal the consumer
+      // this effect is cleaning up
+      status.aborted = true;
+      if (typeof cleanUpFn === 'function') {
+        // run the cleanup function
+        cleanUpFn();
+      }
+    };
+  }, [...dependencies]);
+}
+
+export { useAbortableEffect };

chinook/app/front/src/hooks/useAppState.js

@@ -0,0 +1,6 @@
+import { useContext } from 'react';
+import { AppStateContext } from '../contexts/AppStateContext';
+
+const useAppState = () => useContext(AppStateContext);
+
+export { useAppState };

chinook/app/front/src/hooks/useErrors.js

@@ -0,0 +1,34 @@
+import { useHistory } from 'react-router-dom';
+import { useAppState } from './useAppState';
+
+const useErrors = () => {
+  const history = useHistory();
+  const { setError } = useAppState();
+
+  const handleError = (error) => {
+    console.error('Error', error);
+
+    if (error.response) {
+      const { status, statusText, data } = error.response;
+      setError({
+        status,
+        statusText,
+        message: data.error ? data.error.message : data,
+      });
+    } else {
+      setError({
+        status: '',
+        statusText: 'Error',
+        message: 'Something went wrong. Seems like request is too long',
+      });
+    }
+
+    history.push('/error');
+  };
+
+  return {
+    handleError,
+  };
+};
+
+export { useErrors };

chinook/app/front/src/index.jsx

@@ -0,0 +1,11 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import App from './App';
+// import * as serviceWorker from './serviceWorker';
+
+ReactDOM.render(<App />, document.getElementById('root'));
+
+// If you want your app to work offline and load faster, you can change
+// unregister() to register() below. Note this comes with some pitfalls.
+// Learn more about service workers: https://bit.ly/CRA-PWA
+// serviceWorker.unregister();

chinook/app/front/src/logo.svg

@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
+    <g fill="#61DAFB">
+        <path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
+        <circle cx="420.9" cy="296.5" r="45.7"/>
+        <path d="M520.5 78.1z"/>
+    </g>
+</svg>

chinook/app/front/src/setupTests.js

@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom/extend-expect';

chinook/app/front/src/util/EventEmitter.js

@@ -0,0 +1,5 @@
+import EventEmitter from 'events';
+
+const emitter = new EventEmitter();
+
+export { emitter };

chinook/app/front/src/util/constants.js

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+export const AVAILABLE_LOCALES = ['en', 'fr', 'de'];
+
+export const MESSAGE_TIMEOUT = 2;
+
+export const requireEmployee = (user) => !!user && user.roles.includes('employee');
+
+export const requireCustomer = (user) => !!user && user.roles.includes('customer');

chinook/app/front/src/util/localStorageService.js

@@ -0,0 +1,36 @@
+import { isValidUser } from './validateUser';
+import { AVAILABLE_LOCALES } from './constants';
+
+const setUserToLS = (user) => {
+  if (user) {
+    localStorage.setItem('user', JSON.stringify(user));
+  } else {
+    localStorage.removeItem('user');
+  }
+};
+
+const getUserFromLS = () => {
+  let userFromLS;
+  try {
+    userFromLS = JSON.parse(localStorage.getItem('user'));
+    if (isValidUser(userFromLS)) {
+      return userFromLS;
+    }
+  } catch (e) {
+    console.error('User from local storage are not valid');
+  }
+  return undefined;
+};
+
+const getLocaleFromLS = () => {
+  const localeFromLS = localStorage.getItem('locale');
+  return localeFromLS && localeFromLS !== 'undefined' && AVAILABLE_LOCALES.includes(localeFromLS)
+    ? localeFromLS
+    : 'en';
+};
+
+const setLocaleToLS = (locale) => {
+  localStorage.setItem('locale', locale);
+};
+
+export { setLocaleToLS, getLocaleFromLS, getUserFromLS, setUserToLS };

chinook/app/front/src/util/validateUser.js

@@ -0,0 +1,18 @@
+import { isArray, isEmpty, isString, isNumber } from 'lodash';
+
+const CUSTOMER_ROLE = 'customer';
+const EMPLOYEE_ROLE = 'employee';
+
+const isValidUser = (user) => {
+  return (
+    !isEmpty(user) &&
+    isNumber(user.ID) &&
+    isArray(user.roles) &&
+    !!user.roles.some((role) => role === CUSTOMER_ROLE || role === EMPLOYEE_ROLE) &&
+    isString(user.email) &&
+    isString(user.accessToken) &&
+    isString(user.refreshToken)
+  );
+};
+
+export { isValidUser };

chinook/app/front/webpack/common-plugins.js

@@ -0,0 +1,33 @@
+const path = require('path');
+const webpack = require('webpack');
+const { CleanWebpackPlugin } = require('clean-webpack-plugin');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const CopyPlugin = require('copy-webpack-plugin');
+const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
+
+module.exports = {
+  plugins: [
+    new CleanWebpackPlugin({ dangerouslyAllowCleanPatternsOutsideProject: true }),
+    new HtmlWebpackPlugin({
+      template: path.join(__dirname, '../public/index.html'),
+      filename: path.join(__dirname, '../../build/index.html'),
+      publicPath: '/static/', // for js bundles path
+    }),
+    new InterpolateHtmlPlugin(HtmlWebpackPlugin, {
+      PUBLIC_URL: '',
+    }),
+    new CopyPlugin({
+      patterns: [
+        {
+          from: path.join(__dirname, '../public'),
+          to: path.join(__dirname, '../../build'),
+          globOptions: {
+            dot: true,
+            ignore: ['**/index.html'],
+          },
+        },
+      ],
+    }),
+    new webpack.ProgressPlugin(),
+  ],
+};

chinook/app/front/webpack/common-rules.js

@@ -0,0 +1,19 @@
+module.exports = {
+  rules: [
+    {
+      test: /\.(js|jsx)$/,
+      exclude: /(node_modules)/,
+      use: {
+        loader: 'babel-loader',
+        options: {
+          presets: ['@babel/preset-env', '@babel/preset-react'],
+        },
+      },
+    },
+
+    {
+      test: /\.(png|jpg)$/,
+      use: [{ loader: 'url-loader' }],
+    },
+  ],
+};

chinook/app/front/webpack/webpack-dev-server.js

@@ -0,0 +1,68 @@
+const path = require('path');
+const webpack = require('webpack');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const { CleanWebpackPlugin } = require('clean-webpack-plugin');
+const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
+const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');
+
+module.exports = {
+  entry: {
+    app: './src/index.jsx',
+  },
+  devtool: 'inline-source-map',
+  devServer: {
+    contentBase: './dist',
+    hot: true,
+    port: 3000,
+    compress: true, // compress files to gzip to increase download speed
+    disableHostCheck: false, // by default true, it is not recomended,
+    // because it makes app vulnerable to DNS rebinding attacks
+    open: true, // open the browser after server had been started
+    historyApiFallback: true,
+  },
+  module: {
+    rules: [
+      {
+        test: /\.(js|jsx)$/,
+        exclude: /(node_modules)/,
+        use: {
+          loader: 'babel-loader',
+          options: {
+            presets: ['@babel/preset-env', '@babel/preset-react'],
+            plugins: ['react-refresh/babel'].filter(Boolean),
+          },
+        },
+      },
+      {
+        test: /\.(png|jpg)$/,
+        use: [{ loader: 'url-loader' }],
+      },
+      {
+        test: /\.css$/,
+        use: [{ loader: 'style-loader' }, { loader: 'css-loader' }],
+      },
+    ],
+  },
+
+  plugins: [
+    new CleanWebpackPlugin({ cleanStaleWebpackAssets: false }),
+    new HtmlWebpackPlugin({
+      template: path.join(__dirname, '../public/index.html'),
+    }),
+    new InterpolateHtmlPlugin(HtmlWebpackPlugin, {
+      PUBLIC_URL: '',
+    }),
+
+    new webpack.DefinePlugin({
+      'process.env.SERVICE_URL': JSON.stringify('http://localhost:4004/'),
+    }),
+    new webpack.ProgressPlugin(),
+    new webpack.HotModuleReplacementPlugin(), // for hot module replacement option of devServer
+    new ReactRefreshWebpackPlugin(),
+  ].filter(Boolean),
+  output: {
+    filename: '[name].bundle.js',
+    path: path.resolve(__dirname, 'dist'),
+  },
+  resolve: { extensions: ['*', '.js', '.jsx'] },
+};

chinook/app/front/webpack/webpack.common.js

@@ -0,0 +1,25 @@
+const path = require('path');
+
+module.exports = {
+  entry: {
+    app: './src/index.jsx', // Bundle with our code
+    react: ['react', 'react-dom'],
+    lodash: ['lodash'],
+    moment: ['moment'],
+    events: ['events'],
+    axios: ['axios'],
+    antd: ['antd'],
+  },
+  output: {
+    // [name] - name of the entry (bundle),
+    // [checksum] or [hash] - to cache different bundles
+    // from update when developing (doing changes in the files)
+    filename: '[name].[fullhash].js',
+    // in this folder path bundles will be placed
+    path: path.resolve(__dirname, '../../build/static'),
+    // where you uploaded your bundled files. (Relative to server root)
+    // needs for react-router-dom
+    publicPath: '/static/',
+  },
+  resolve: { extensions: ['*', '.js', '.jsx'] },
+};

chinook/app/front/webpack/webpack.dev.js

@@ -0,0 +1,25 @@
+const webpack = require('webpack');
+const { merge } = require('webpack-merge');
+const common = require('./webpack.common.js');
+const { rules } = require('./common-rules');
+const { plugins } = require('./common-plugins');
+
+module.exports = merge(common, {
+  mode: 'development',
+  devtool: 'inline-source-map',
+  plugins: [
+    ...plugins,
+    new webpack.DefinePlugin({
+      'process.env.SERVICE_URL': JSON.stringify('http://localhost:4004/'),
+    }),
+  ],
+  module: {
+    rules: [
+      ...rules,
+      {
+        test: /\.css$/,
+        use: [{ loader: 'style-loader' }, { loader: 'css-loader' }],
+      },
+    ],
+  },
+});

chinook/app/front/webpack/webpack.prod.js

@@ -0,0 +1,40 @@
+const webpack = require('webpack');
+const { merge } = require('webpack-merge');
+const MiniCssExtractPlugin = require('mini-css-extract-plugin');
+const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
+const TerserPlugin = require('terser-webpack-plugin');
+const common = require('./webpack.common.js');
+const { rules } = require('./common-rules');
+const { plugins } = require('./common-plugins');
+
+module.exports = merge(common, {
+  mode: 'production',
+  devtool: 'source-map',
+  plugins: [
+    ...plugins,
+    new webpack.DefinePlugin({
+      'process.env.SERVICE_URL': JSON.stringify('api/'),
+    }),
+    new MiniCssExtractPlugin({
+      filename: '[name].css',
+      chunkFilename: '[id].css',
+    }),
+  ],
+  optimization: {
+    splitChunks: {
+      // To split up js code to different bundles.
+      chunks: 'all', // Now bundle with our code will be cleaned up
+    }, // from vendors imports (2mb ~> 100kb)
+    minimize: true,
+    minimizer: [new TerserPlugin(), new CssMinimizerPlugin()], // to minimize file size
+  },
+  module: {
+    rules: [
+      ...rules,
+      {
+        test: /\.css$/,
+        use: [MiniCssExtractPlugin.loader, 'css-loader'],
+      },
+    ],
+  },
+});