no replica context

promote code tours

.env

@@ -1 +0,0 @@
-cds.features.snapi = y

.eslintrc

@@ -21,6 +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

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10.x, 12.16.2]
+        node-version: [12.x, 14.x]
 
     steps:
     - uses: actions/checkout@v2

.npmrc

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

.registry/.gitignore

@@ -0,0 +1 @@
+*.tgz

.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
+process.chdir(__dirname)
+
+app.use('/-/:tarball', (req,res,next) => {
+  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

.tours/db-native.tour

@@ -0,0 +1,109 @@
+{
+  "$schema": "https://aka.ms/codetour-schema",
+  "title": "Database Functions",
+  "steps": [
+    {
+      "title": "Introduction",
+      "description": "### Database Functions in CDS Models\n\nIn this tour, you'll learn how to add database-specific functions to CDS models in your application."
+    },
+    {
+      "file": "bookshop/db/schema.cds",
+      "description": "#### Basic Schema\n\nWe want to add two fields to the `Authors` entity, one for the author's age and one for the span of years that she or he lived.\n\nThese two fields can be computed out of the existing `dateOfBirth` and `dateOfDeath` fields.",
+      "selection": {
+        "start": {
+          "line": 19,
+          "character": 1
+        },
+        "end": {
+          "line": 21,
+          "character": 1
+        }
+      },
+      "title": "Base fields in Author"
+    },
+    {
+      "file": "bookshop/srv/admin-service.cds",
+      "description": "This is how the `Authors` entity gets exposed in an OData or REST service.\n\nIn the next step, you'll see how we extend this projection.",
+      "selection": {
+        "start": {
+          "line": 4,
+          "character": 1
+        },
+        "end": {
+          "line": 5,
+          "character": 1
+        }
+      },
+      "title": "Authors service"
+    },
+    {
+      "file": "fiori/db/sqlite/index.cds",
+      "description": "#### SQLite Implementation\n\nHere's the first implementation for SQLite.  It computes the two fields `age` and `lifetime` through SQLite's [strftime](https://sqlite.org/lang_datefunc.html) function.\n\nThrough the [`extend projection`](https://cap.cloud.sap/docs/cds/cdl#extend-view) clause you can add additional fields to projection entities.  These are deployed as database views, which is why we can integrate the database functions in the first place.\n",
+      "selection": {
+        "start": {
+          "line": 7,
+          "character": 1
+        },
+        "end": {
+          "line": 11,
+          "character": 1
+        }
+      },
+      "title": "SQLite implementation"
+    },
+    {
+      "file": "fiori/db/hana/index.cds",
+      "description": "#### SAP HANA Implementation\n\nThis is the second implementation for SAP HANA.  It computes the same two fields `age` and `lifetime` through the [YEARS_BETWEEN](https://help.sap.com/viewer/7c78579ce9b14a669c1f3295b0d8ca16/Cloud/en-US/7c0d2c161ea34def86de3f5eadd6a0af.html) and [YEAR](https://help.sap.com/viewer/7c78579ce9b14a669c1f3295b0d8ca16/Cloud/en-US/20f5fac6751910148dabd3c6821f907d.html) functions of SAP HANA.\n\n#### File Layout and Code Structure\n\nNote the path of the `.cds` file we are in: it's in a subfolder of `db`, so that it's _not_ automatically picked up when we start the application.  The same is true for the SQLite implementation: it's in a separate `db/sqlite/` folder as well.  In the next step, you'll see how these files are loaded.\n\nAlso, we choose to implement all of that as an extension of the original bookshop here in the _fiori_ package.  See the first [CAP Samples] code tour for more details on the different packages of this repository.",
+      "selection": {
+        "start": {
+          "line": 7,
+          "character": 1
+        },
+        "end": {
+          "line": 11,
+          "character": 1
+        }
+      },
+      "title": "SAP HANA implementation"
+    },
+    {
+      "file": "fiori/package.json",
+      "description": "#### Configuration\n\nThe `cds` section in `package.json` is a place to configure which of the `db/sqlite` and `db/hana` folders are used for which database.\nWe use [Node.js profiles](https://cap.cloud.sap/docs/node.js/cds-env#profiles) to separate the configuration.\nIn the `development` profile, you can see that `db/sqlite` is set as the model, while the `db/hana` folder is configured in the `production` profile.",
+      "line": 17,
+      "title": "Configuration"
+    },
+    {
+      "file": "fiori/package.json",
+      "description": "#### Run with SQLite\n\nTo run with `development` and an in-memory SQLite database, you don't need to do anything special, because it's activated by default.  Just run:\n\n>> cds watch fiori\n\nThen open [http://localhost:4004/admin/Authors](http://localhost:4004/admin/Authors) to see the two new fields.\n",
+      "line": 28,
+      "title": "Run with SQLite"
+    },
+    {
+      "file": "fiori/package.json",
+      "description": "#### Deploy the CDS Model to SAP HANA\n\nTo 'activate' SAP HANA through the `production` profile, you can use the global `--production` flag:\n\n>> cd fiori; cds deploy --to hana --production\n\n[Learn more about SAP HANA deployment](https://cap.cloud.sap/docs/guides/databases#get-hana)\n\n#### Run the Application\n\n>> cd fiori; cds watch --production\n\nThe service on [http://localhost:4004/admin/Authors](http://localhost:4004/admin/Authors) is the same as before, but this time the `Authors` entity is backed by a database view with an SAP HANA function.\n\n#### More\n\nIf you don't see data, you can add some in the next step.",
+      "line": 31,
+      "title": "Run with SAP HANA"
+    },
+    {
+      "file": "fiori/test/requests.http",
+      "description": "### Add More Data\n\nOptionally you can add some `Authors` data by clicking on the _Send Request_ link (provided by the [REST client](https://marketplace.visualstudio.com/items?itemName=humao.rest-client) extension).",
+      "line": 68,
+      "selection": {
+        "start": {
+          "line": 67,
+          "character": 1
+        },
+        "end": {
+          "line": 73,
+          "character": 1
+        }
+      },
+      "title": "Add Data"
+    },
+    {
+      "title": "Wrap-up",
+      "description": "### Summary\n\nThat's it!  You have seen: \n- How to integrate database-specific functions in a CDS model.\n- How to switch between the two implementations for SQLite and SAP HANA."
+    }
+  ],
+  "ref": "master"
+}

.tours/samples.tour

@@ -0,0 +1,136 @@
+{
+  "$schema": "https://aka.ms/codetour-schema",
+  "title": "CAP Samples",
+  "steps": [
+    {
+      "title": "Welcome",
+      "file": "README.md",
+      "description": "### Welcome to CAP Samples!\n\nThis tour leads you through a collection of samples for the [SAP Cloud Application Programming Model (CAP)](https://cap.cloud.sap).\nYou will learn which features of the programming model are demonstrated in which sample.\n\nLet's start!",
+      "line": 2,
+      "selection": {
+        "start": {
+          "line": 1,
+          "character": 1
+        },
+        "end": {
+          "line": 3,
+          "character": 108
+        }
+      }
+    },
+    {
+      "file": "hello/world.cds",
+      "description": "### Hello World!\n\nThis is a simplistic [Hello World](https://cap.cloud.sap/docs/get-started/hello-world) service using [CDS](https://cap.cloud.sap/docs/cds/) and [cds.services](https://cap.cloud.sap/docs/node.js/api#services-api).",
+      "line": 2,
+      "selection": {
+        "start": {
+          "line": 1,
+          "character": 1
+        },
+        "end": {
+          "line": 4,
+          "character": 1
+        }
+      },
+      "title": "Hello World!"
+    },
+    {
+      "file": "bookshop/db/schema.cds",
+      "description": "### A Bookshop!\n\nIntroduces:\n- [Project Setup](https://cap.cloud.sap/docs/get-started/) and [Layouts](https://cap.cloud.sap/docs/get-started/projects)\n- [Domain Modeling](https://cap.cloud.sap/docs/guides/domain-models)\n- [Defining Services](https://cap.cloud.sap/docs/guides/providing-services)\n- [Generic Providers](https://cap.cloud.sap/docs/guides/generic-providers)\n- [Adding Custom Logic](https://cap.cloud.sap/docs/guides/service-impl)\n- [Using Databases](https://cap.cloud.sap/docs/guides/databases)\n",
+      "line": 1,
+      "selection": {
+        "start": {
+          "line": 1,
+          "character": 1
+        },
+        "end": {
+          "line": 32,
+          "character": 1
+        }
+      },
+      "title": "Bookshop"
+    },
+    {
+      "file": "common/index.cds",
+      "description": "### Extend and Reuse\n\nShowcases how to extend [@sap/cds/common](https://cap.cloud.sap/docs/cds/common) thereby covering:\n- Building [extension packages](https://cap.cloud.sap/docs/guides/domain-models#aspects-extensibility)\n- Providing [reuse packages](https://cap.cloud.sap/docs/get-started/projects#sharing-and-reusing-content)\n- [Verticalization](https://cap.cloud.sap/docs/cds/common#adapting-to-your-needs)\n- Using [Aspects](https://cap.cloud.sap/docs/cds/cdl#aspects)\n- Used in the [fiori app sample](#fiori)\n",
+      "line": 1,
+      "selection": {
+        "start": {
+          "line": 1,
+          "character": 1
+        },
+        "end": {
+          "line": 46,
+          "character": 1
+        }
+      },
+      "title": "Common"
+    },
+    {
+      "file": "orders/db/schema.cds",
+      "description": "### Compositions and Serving Documents\n\nA standalone orders management service, demonstrating:\n- Using [Compositions](https://cap.cloud.sap/docs/cds/cdl#compositions) in [Domain Models](https://cap.cloud.sap/docs/guides/domain-models), along with\n- [Serving deeply nested documents](https://cap.cloud.sap/docs/guides/generic-providers#serving-structured-data)\n",
+      "line": 1,
+      "selection": {
+        "start": {
+          "line": 1,
+          "character": 1
+        },
+        "end": {
+          "line": 27,
+          "character": 1
+        }
+      },
+      "title": "Orders"
+    },
+    {
+      "file": "reviews/db/schema.cds",
+      "description": "### More Modularity\n\nShows how to implement a modular service to manage product reviews, including:\n- Consuming other services synchronously and asynchronously\n- Serving requests synchronously\n- Emitting events asynchronously\n- Grow as you go, with:\n- Mocking app services\n- Running service meshes\n- Late-cut Micro Services\n- As well as managed data, input validations, and authorization\n",
+      "line": 1,
+      "selection": {
+        "start": {
+          "line": 1,
+          "character": 1
+        },
+        "end": {
+          "line": 39,
+          "character": 1
+        }
+      },
+      "title": "Reviews"
+    },
+    {
+      "file": "fiori/app/index.cds",
+      "description": "### Annotations for SAP Fiori Elements\n\nA [composite app, reusing and combining](https://cap.cloud.sap/docs/guides/verticalize) these packages:\n  - [@capire/bookshop](bookshop)\n  - [@capire/reviews](reviews)\n  - [@capire/orders](orders)\n  - [@capire/common](common)\n\n[Adds a SAP Fiori elements application](https://cap.cloud.sap/docs/guides/fiori/) to bookshop, thereby introducing to:\n  - [OData Annotations](https://cap.cloud.sap/docs/guides/fiori#adding-odata-annotations) in `.cds` files\n  - Support for [Fiori Draft](https://cap.cloud.sap/docs/guides/fiori#draft)\n  - Support for [Value Helps](https://cap.cloud.sap/docs/guides/fiori#value-help)\n  - Serving SAP Fiori apps locally\n\n[The Vue.js app](bookshop/app/vue) imported from bookshop is served as well.\n",
+      "line": 1,
+      "selection": {
+        "start": {
+          "line": 1,
+          "character": 1
+        },
+        "end": {
+          "line": 13,
+          "character": 1
+        }
+      },
+      "title": "Fiori"
+    },
+    {
+      "file": "package.json",
+      "description": "### All-in-one Monorepo\n\nEach sample sub directory essentially is a standard npm package, some with standard npm dependencies to other samples. The root folder's [package.json](package.json) has local links to the sub folders, such that an `npm install` populates a local `node_modules` folder acts like a local npm registry to the individual sample packages.\n",
+      "line": 8,
+      "selection": {
+        "start": {
+          "line": 8,
+          "character": 1
+        },
+        "end": {
+          "line": 15,
+          "character": 1
+        }
+      },
+      "title": "Packages"
+    }
+  ],
+  "isPrimary": true,
+  "description": "Overview of CAP Samples for Node.js"
+}

.vscode/extensions.json

@@ -4,14 +4,15 @@
 
 	// List of extensions which should be recommended for users of this workspace.
 	"recommendations": [
-		// "CDS Editor !",
+		"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"
+		"sdras.night-owl",
+		"vsls-contrib.codetour"
 	],
 	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
 	"unwantedRecommendations": [

.vscode/launch.json

@@ -4,26 +4,27 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
+  {
+    "name": "Attach by Process ID",
+    "processId": "${command:PickProcess}",
+    "request": "attach",
+    "skipFiles": [
+      "<node_internals>/**"
+    ],
+    "type": "pwa-node"
+  },
     {
       "name": "bookshop",
-      "cwd": "${workspaceFolder}/bookshop",
+      "command": "cds watch bookshop",
       "request": "launch",
-      "type": "node",
-      "runtimeExecutable": "npx",
-      "runtimeArgs": ["-n"],
-      "args": ["--", "cds", "run", "--with-mocks", "--in-memory?"],
-      "console": "integratedTerminal",
+      "type": "node-terminal",
       "skipFiles": ["<node_internals>/**"]
     },
     {
-      "name": "Fiori App",
-      "cwd": "${workspaceFolder}/fiori",
+      "name": "Fiori app",
+      "command": "cds watch fiori",
       "request": "launch",
-      "type": "node",
-      "runtimeExecutable": "npx",
-      "runtimeArgs": ["-n"],
-      "args": ["--", "cds", "run", "--with-mocks", "--in-memory?"],
-      "console": "integratedTerminal",
+      "type": "node-terminal",
       "skipFiles": ["<node_internals>/**"]
     }
   ],

LICENSE

@@ -1,217 +1,208 @@
-                                  Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
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-      "Contribution" shall mean any work of authorship, including
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README.md

@@ -3,17 +3,22 @@
 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)
 
 ![](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)-->
+
 
 ### Preliminaries
 
-1. [Install @sap/cds-dk](https://cap.cloud.sap/docs/get-started/) as documented in [capire](https://cap.cloud.sap)
-2. _Optional:_ [Use Visual Studio Code](https://cap.cloud.sap/docs/get-started/in-vscode)
+1. Install [**@sap/cds-dk**](https://cap.cloud.sap/docs/get-started/) globally:
 
+   ```sh
+   npm i -g @sap/cds-dk
+   ```
+
+2. _Optional:_ [Use Visual Studio Code](https://cap.cloud.sap/docs/get-started/tools#vscode)
 
 ### 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).
+If you've [Git](https://git-scm.com/downloads) installed, clone this repo as shown below, otherwise [download as ZIP file](archive/master.zip).
 
 ```sh
 git clone https://github.com/sap-samples/cloud-cap-samples samples
@@ -38,21 +43,45 @@ cds watch bookshop
 
 After that open this link in your browser: [http://localhost:4004](http://localhost:4004)
 
+When asked to log in, type `alice` as user and leave the password field blank, which is the [default user](https://cap.cloud.sap/docs/node.js/authentication#mocked).
+
 ### 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.
 
 
+### Serve `npm`
+
+We've included a simple npm registry mock, which allows you to do an `npm install @capire/<package>` 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, for example:
+
+```sh
+npm add @capire/common @capire/bookshop
+```
+
+
+## Code Tours
+
+Take one of the [guided tours](.tours) in VS Code through our CAP samples and learn which CAP features are showcased by the different parts of the repository. Just install the [CodeTour extension](https://marketplace.visualstudio.com/items?itemName=vsls-contrib.codetour) for VS Code. We'll add more code tours in the future. Stay tuned!
+
 ## Get Support
 
 Check out the documentation at [https://cap.cloud.sap](https://cap.cloud.sap). <br>
-In case you find a bug or need support, please [open an issue in here](https://github.com/SAP-samples/cloud-cap-samples/issues/new).
+In case you've a question, find a bug, or otherwise need support, use our [community](https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce) to get more visibility.
 
 
 ## License
 
-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](/LICENSE) file.
+Copyright (c) 2021 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/.env

@@ -1 +0,0 @@
-cds.features.snapi = y

bookshop/app/vue/app.js

@@ -9,33 +9,36 @@ const books = new Vue ({
 
     data: {
         list: [],
-        book: { descr:'( click on a row to see details... )' },
+        book: undefined,
         order: { amount:1, succeeded:'', failed:'' }
     },
 
     methods: {
 
-        search: ({target:{value:v}}) => books.fetch (v && '$search='+v),
+        search: ({target:{value:v}}) => books.fetch(v && '&$search='+v),
 
-        async fetch (_filter='') {
-            const columns = 'ID,title,author,price,stock', details = 'genre,currency'
-            const {data} = await GET(`/Books?$select=${columns}&$expand=${details}&${_filter}`)
+        async fetch (etc='') {
+            const {data} = await GET(`/ListOfBooks?$expand=genre,currency${etc}`)
             books.list = data.value
         },
 
-        async inspect () {
-            const book = books.book = books.list [event.currentTarget.rowIndex-1]
-            book.descr || await GET(`/Books/${book.ID}/descr/$value`) .then (({data}) => book.descr = data)
+        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)
         },
 
-        submitOrder () { event.preventDefault()
-            const {book,order} = books, amount = parseInt (order.amount) || 1
-            POST(`/submitOrder`, { amount, book: book.ID })
-            .then (()=> books.order = { amount, succeeded: `Successfully orderd ${amount} item(s).` })
-            .catch (e=> books.order = { amount, failed: e.response.data.error.message })
-            GET(`/Books/${book.ID}/stock/$value`).then (res => book.stock = res.data)
+        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 }
+            }
         }
 
     }

bookshop/app/vue/index.html

@@ -7,50 +7,56 @@
     <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/vue"></script>
     <style>
-        #books tr:hover { background: #f2f2f2; cursor: pointer; }
-        form { float:right; display:flex; flex-direction: row-reverse }
-        form #amount { width: 5em }
-        .is-success { color: #0d920d }
-        .has-error { color: #df1010 }
+        .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> Capire Books </h1>
+    <h1> {{ document.title }} </h1>
 
     <input type="text" placeholder="Search..." @input="search">
 
-    <table id='books'>
+    <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>{{ book.currency.symbol }} {{ book.price }}</td>
+            <td class="rating-stars">
+                {{ ('★'.repeat(Math.round(book.rating))+'☆☆☆☆☆').slice(0,5) }}
+            </td>
+            <td>{{ book.currency && book.currency.symbol }} {{ book.price }}</td>
         </tr>
     </table>
 
-    <div v-if="book.title">
+    <div v-if="book">
+        <img v-bind:src="book.image" alt=""/>
         <label style="text-align:right">
-            <span class="is-success"> {{ order.succeeded }} </span>
-            <span class="has-error"> {{ order.failed }} </span>
+            <span class="succeeded"> {{ order.succeeded }} </span>
+            <span class="failed"> {{ order.failed }} </span>
             &nbsp;&nbsp; {{ book.stock }} in stock
         </label>
-        <form @submit="submitOrder">
-            <input type="number" id="amount" v-model="order.amount" v-bind:class="{ 'has-error': order.failed }">
+        <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>
-
-    <h4> {{ book.title }} </h4>
-    <p> {{ book.descr }} </p>
 
 </div>
 </body>

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

@@ -11,6 +11,6 @@ ID;parent_ID;name
 19;10;Fairy Tale
 20;;Non-Fiction
 21;20;Biography
-22;20;Autobiography
+22;21;Autobiography
 23;20;Essay
 24;20;Speech

bookshop/db/schema.cds

@@ -8,8 +8,9 @@ entity Books : managed {
   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 {

bookshop/package.json

@@ -3,9 +3,10 @@
   "version": "1.0.0",
   "description": "A simple self-contained bookshop service.",
   "dependencies": {
-    "@capire/common": "../common",
-    "@sap/cds": ">=3.33.1",
-    "express": "^4.17.1"
+    "@capire/common": "*",
+    "@sap/cds": "^4",
+    "express": "^4.17.1",
+    "passport": "0.4.1"
   },
   "scripts": {
     "genres": "cds serve test/genres.cds",

bookshop/readme.md

@@ -5,10 +5,10 @@ This stand-alone sample introduces the essential tasks in the development of CAP
 ## Hypothetical Use Cases
 
 1. Build a service that allows to browse _Books_ and _Authors_.
-2. Books have assigned _Genres_ which are organized hierarchically.
+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)
+5. End users may order books (the actual order mgmt being out of scope).
 
 ## Running the Sample
 
@@ -20,12 +20,12 @@ npm run watch
 
 | 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)       |
+| [Project Setup & Layouts](https://cap.cloud.sap/docs/get-started/projects#sharing-and-reusing-content)    | [`./`](./)                           |
+| [Domain Modeling with CDS](https://cap.cloud.sap/docs/guides/domain-models)                               | [`./db/schema.cds`](./db/schema.cds) |
+| [Defining Services](https://cap.cloud.sap/docs/guides/services#defining-services)                         | [`./srv/*.cds`](./srv)               |
+| [Single-purposed Services](https://cap.cloud.sap/docs/guides/services#single-purposed-services)           | [`./srv/*.cds`](./srv)               |
+| [Providing & Consuming Providers](https://cap.cloud.sap/docs/guides/providing-services)                   | http://localhost:4004                |
+| [Using Databases](https://cap.cloud.sap/docs/guides/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)         |
+| Adding Tests                                                                                              | [`./test`](./test)                   |
+| [Sharing for Reuse](https://cap.cloud.sap/docs/guides/reuse-and-compose)                                  | [`./index.cds`](./index.cds)         |

bookshop/srv/admin-service.cds

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

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

@@ -1,10 +1,14 @@
 using { sap.capire.bookshop as my } from '../db/schema';
 service CatalogService @(path:'/browse') {
 
-  @readonly entity Books as SELECT from my.Books {*,
+  @readonly entity Books as SELECT from my.Books { *,
     author.name as author
   } excluding { createdBy, modifiedBy };
 
-  @requires_: 'authenticated-user'
-  action submitOrder (book : Books.ID, amount: Integer);
+  @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

@@ -1,20 +1,28 @@
 const cds = require('@sap/cds')
-module.exports = async function (){
+const { Books } = cds.entities ('sap.capire.bookshop')
 
-  const db = await cds.connect.to('db') // connect to database service
-  const { Books } = db.entities         // get reflected definitions
+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
-    const n = await UPDATE (Books, book)
-      .with ({ stock: {'-=': amount }})
-      .where ({ stock: {'>=': amount }})
-    n > 0 || req.error (409,`${amount} exceeds stock for book #${book}`)
+    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!`
+    if (each.stock > 111) {
+      each.title += ` -- 11% discount!`
+    }
   })
-}
+
+  return super.init()
+}}
+
+module.exports = { CatalogService }

bookshop/test/requests.http

@@ -32,6 +32,37 @@ GET {{server}}/admin/Authors?
   # &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

common/data/sap.common-Currencies.csv

@@ -2,7 +2,7 @@ code;symbol;name;descr;numcode;minor;exponent
 EUR;€;Euro;European Euro;978;Cent;2
 USD;$;US Dollar;United States Dollar;840;Cent;2
 CAD;$;Canadian Dollar;Canadian Dollar;124;Cent;2
-AUD;$;Australian Dollar;Canadian Dollar;036;Cent;2
+AUD;$;Australian Dollar;Australian Dollar;036;Cent;2
 GBP;£;British Pound;Great Britain Pound;826;Penny;2
 ILS;₪;Shekel;Israeli New Shekel;376;Agorat;2
 INR;₹;Rupee;Indian Rupee;356;Paise;2

common/package.json

@@ -1,4 +1,8 @@
 {
   "name": "@capire/common",
-  "version": "1.0.0"
+  "description": "Provides a pre-built extension package for std @sap/cds/common",
+  "version": "1.0.0",
+  "dependencies": {
+    "@sap/cds": "*"
+  }
 }

fiori/.env

@@ -1 +1,2 @@
-cds.features.snapi = y
+# cds.requires.messaging.kind = file-based-messaging
+PORT = 4004

fiori/app/_i18n/i18n.properties

@@ -7,7 +7,20 @@ AuthorID = Author ID
 Stock = Stock
 Name = Name
 AuthorName = Author's Name
+DateOfBirth = Date of Birth
+DateOfDeath = Date of Death
+PlaceOfBirth = Place of Birth
+PlaceOfDeath = Place of Death
+Age = Age
 Authors = Authors
 Order = Order
 Orders = Orders
 Price = Price
+
+Genre = Genre
+Genres = Genres
+SubGenres = Sub Genres
+
+NumCode = Numeric Code
+MinorUnit = Minor Unit
+Exponent = Exponent

fiori/app/_i18n/i18n_de.properties

@@ -6,6 +6,7 @@ Authors = Autoren
 Author = Autor
 AuthorID = ID des Autors
 AuthorName = Name des Autors
+Age = Alter
 Name = Name
 Stock = Bestand
 Order = Bestellung

fiori/app/admin-fiori.html

@@ -13,7 +13,7 @@
 			applications: {
 				"browse-books": {
 					title: "Browse Books",
-					description: "... testing FE v42",
+					description: "w/ SAP Fiori Elements",
 					additionalInformation: "SAPUI5.Component=bookshop",
 					applicationType : "URL",
 					url: "/browse/webapp",
@@ -21,15 +21,15 @@
 				},
 				"manage-books": {
 					title: "Manage Books",
-					description: "... testing FE v42",
+					description: "w/ SAP Fiori Elements",
 					additionalInformation: "SAPUI5.Component=admin",
 					applicationType : "URL",
 					url: "/admin/webapp",
 					navigationMode: "embedded"
 				},
 				"manage-orders": {
-					title: "Order Books",
-					description: "... testing FE v42",
+					title: "Manage Orders",
+					description: "w/ SAP Fiori Elements",
 					additionalInformation: "SAPUI5.Component=orders",
 					applicationType : "URL",
 					url: "/orders/webapp",
@@ -39,8 +39,8 @@
 		};
 	</script>
 
-	<script src="https://sapui5.hana.ondemand.com/test-resources/sap/ushell/bootstrap/sandbox.js"></script>
-	<script src="https://sapui5.hana.ondemand.com/resources/sap-ui-core.js"
+	<script id="sap-ushell-bootstrap" src="https://sapui5.hana.ondemand.com/test-resources/sap/ushell/bootstrap/sandbox.js"></script>
+	<script id="sap-ui-bootstrap" src="https://sapui5.hana.ondemand.com/resources/sap-ui-core.js"
     	data-sap-ui-libs="sap.m, sap.ushell, sap.collaboration, sap.ui.layout"
     	data-sap-ui-compatVersion="edge"
     	data-sap-ui-theme="sap_fiori_3"

fiori/app/admin/fiori-service.cds

@@ -1,4 +1,4 @@
-using AdminService from '@capire/bookshop';
+using { AdminService } from '../../db';
 
 ////////////////////////////////////////////////////////////////////////////
 //
@@ -39,6 +39,27 @@ annotate AdminService.Books with @(
 	}
 );
 
+annotate AdminService.Authors with @(
+	UI: {
+		HeaderInfo: {
+			Description: {Value: lifetime}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Details}', Target: '@UI.FieldGroup#Details'},
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Books}', Target: 'books/@UI.LineItem'},
+		],
+		FieldGroup#Details: {
+			Data: [
+				{Value: placeOfBirth},
+				{Value: placeOfDeath},
+				{Value: dateOfBirth},
+				{Value: dateOfDeath},
+				{Value: age, Label: '{i18n>Age}'},
+			]
+		},
+	}
+);
+
 
 
 ////////////////////////////////////////////////////////////

fiori/app/admin/webapp/Component.js

@@ -1,5 +1,8 @@
-sap.ui.define(["sap/fe/core/AppComponent"], ac => ac.extend("admin.Component", {
-    metadata:{ manifest:'json' }
-}))
+sap.ui.define(["sap/fe/core/AppComponent"], function(AppComponent) {
+	"use strict";
+	return AppComponent.extend("admin.Component", {
+		metadata: { manifest: "json" }
+	});
+});
 
 /* eslint no-undef:0 */

fiori/app/admin/webapp/manifest.json

@@ -24,7 +24,7 @@
     "sap.ui5": {
         "dependencies": {
             "libs": {
-                "sap.fe": {}
+                "sap.fe.templates": {}
             }
         },
         "models": {

fiori/app/bookshop.html

@@ -0,0 +1,3 @@
+<head>
+  <meta http-equiv="refresh" content="0;url=bookshop/index.html">
+</head>

fiori/app/browse/fiori-service.cds

@@ -7,6 +7,8 @@ using CatalogService from '@capire/bookshop';
 annotate CatalogService.Books with @(
 	UI: {
   	HeaderInfo: {
+			TypeName: 'Book',
+			TypeNamePlural: 'Books',
   		Description: {Value: author}
   	},
 		HeaderFacets: [

fiori/app/browse/webapp/Component.js

@@ -1,5 +1,7 @@
-sap.ui.define(["sap/fe/core/AppComponent"], ac => ac.extend("bookshop.Component", {
-    metadata:{ manifest:'json' }
-}))
-
+sap.ui.define(["sap/fe/core/AppComponent"], function(AppComponent) {
+	"use strict";
+	return AppComponent.extend("bookshop.Component", {
+		metadata: { manifest: "json" }
+	});
+});
 /* eslint no-undef:0 */

fiori/app/browse/webapp/manifest.json

@@ -24,7 +24,7 @@
   "sap.ui5": {
     "dependencies": {
       "libs": {
-        "sap.fe": {}
+        "sap.fe.templates": {}
       }
     },
     "models": {

fiori/app/common.cds

@@ -1,9 +1,9 @@
 /*
-  Common Annotations shared by all apps
+	Common Annotations shared by all apps
 */
 
 using { sap.capire.bookshop as my } from '@capire/bookshop';
-
+using { sap.common } from '@capire/common';
 
 ////////////////////////////////////////////////////////////////////////////
 //
@@ -13,7 +13,7 @@ annotate my.Books with @(
 	Common.SemanticKey: [title],
 	UI: {
 		Identification: [{Value:title}],
-	  SelectionFields: [ ID, author_ID, price, currency_code ],
+		SelectionFields: [ ID, author_ID, price, currency_code ],
 		LineItem: [
 			{Value: ID},
 			{Value: title},
@@ -28,25 +28,18 @@ annotate my.Books with @(
 	author @ValueList.entity:'Authors';
 };
 
-annotate my.Authors with @(
-	UI: {
-		Identification: [{Value:name}],
-	}
-);
-
-
 ////////////////////////////////////////////////////////////////////////////
 //
 //	Books Details
 //
 annotate my.Books with @(
 	UI: {
-  	HeaderInfo: {
-  		TypeName: '{i18n>Book}',
-  		TypeNamePlural: '{i18n>Books}',
-  		Title: {Value: title},
-  		Description: {Value: author.name}
-  	},
+		HeaderInfo: {
+			TypeName: '{i18n>Book}',
+			TypeNamePlural: '{i18n>Books}',
+			Title: {Value: title},
+			Description: {Value: author.name}
+		},
 	}
 );
 
@@ -66,15 +59,199 @@ annotate my.Books with {
 	descr @UI.MultiLineText;
 }
 
+////////////////////////////////////////////////////////////////////////////
+//
+//	Genres List
+//
+annotate my.Genres with @(
+	Common.SemanticKey: [name],
+	UI: {
+		SelectionFields: [ name ],
+		LineItem:[
+			{Value: name},
+			{Value: parent.name, Label: 'Main Genre'},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Genre Details
+//
+annotate my.Genres with @(
+	UI: {
+		Identification: [{Value:name}],
+		HeaderInfo: {
+			TypeName: '{i18n>Genre}',
+			TypeNamePlural: '{i18n>Genres}',
+			Title: {Value: name},
+			Description: {Value: ID}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>SubGenres}', Target: 'children/@UI.LineItem'},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Genres Elements
+//
 annotate my.Genres with {
-  name  @title: '{i18n>Genre}';
+	ID  @title: '{i18n>ID}';
+	name  @title: '{i18n>Genre}';
 }
 
+////////////////////////////////////////////////////////////////////////////
+//
+//	Authors List
+//
+annotate my.Authors with @(
+	Common.SemanticKey: [name],
+	UI: {
+		Identification: [{Value:name}],
+		SelectionFields: [ name ],
+		LineItem:[
+			{Value: ID},
+			{Value: name},
+			{Value: dateOfBirth},
+			{Value: dateOfDeath},
+			{Value: placeOfBirth},
+			{Value: placeOfDeath},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Author Details
+//
+annotate my.Authors with @(
+	UI: {
+		HeaderInfo: {
+			TypeName: '{i18n>Author}',
+			TypeNamePlural: '{i18n>Authors}',
+			Title: {Value: name},
+			Description: {Value: dateOfBirth}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Target: 'books/@UI.LineItem'},
+		],
+	}
+);
+
+
 ////////////////////////////////////////////////////////////////////////////
 //
 //	Authors Elements
 //
 annotate my.Authors with {
 	ID @title:'{i18n>ID}' @UI.HiddenFilter;
-	name @title:'{i18n>AuthorName}';
+	name @title:'{i18n>Name}';
+	dateOfBirth @title:'{i18n>DateOfBirth}';
+	dateOfDeath @title:'{i18n>DateOfDeath}';
+	placeOfBirth @title:'{i18n>PlaceOfBirth}';
+	placeOfDeath @title:'{i18n>PlaceOfDeath}';
+}
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Languages List
+//
+annotate common.Languages with @(
+	Common.SemanticKey: [code],
+	Identification: [{Value:code}],
+	UI: {
+		SelectionFields: [ name, descr ],
+		LineItem:[
+			{Value: code},
+			{Value: name},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Language Details
+//
+annotate common.Languages with @(
+	UI: {
+		HeaderInfo: {
+			TypeName: '{i18n>Language}',
+			TypeNamePlural: '{i18n>Languages}',
+			Title: {Value: name},
+			Description: {Value: descr}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Details}', Target: '@UI.FieldGroup#Details'},
+		],
+		FieldGroup#Details: {
+			Data: [
+				{Value: code},
+				{Value: name},
+				{Value: descr}
+			]
+		},
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Currencies List
+//
+annotate common.Currencies with @(
+	Common.SemanticKey: [code],
+	Identification: [{Value:code}],
+	UI: {
+		SelectionFields: [ name, descr ],
+		LineItem:[
+			{Value: descr},
+			{Value: symbol},
+			{Value: code},
+		],
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Currency Details
+//
+annotate common.Currencies with @(
+	UI: {
+		HeaderInfo: {
+			TypeName: '{i18n>Currency}',
+			TypeNamePlural: '{i18n>Currencies}',
+			Title: {Value: descr},
+			Description: {Value: code}
+		},
+		Facets: [
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Details}', Target: '@UI.FieldGroup#Details'},
+			{$Type: 'UI.ReferenceFacet', Label: '{i18n>Extended}', Target: '@UI.FieldGroup#Extended'},
+		],
+		FieldGroup#Details: {
+			Data: [
+				{Value: name},
+				{Value: symbol},
+				{Value: code},
+				{Value: descr}
+			]
+		},
+		FieldGroup#Extended: {
+			Data: [
+				{Value: numcode},
+				{Value: minor},
+				{Value: exponent}
+			]
+		},
+	}
+);
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Currencies Elements
+//
+annotate common.Currencies with {
+	numcode @title:'{i18n>NumCode}';
+	minor @title:'{i18n>MinorUnit}';
+	exponent @title:'{i18n>Exponent}';
 }

fiori/app/index.cds

@@ -4,7 +4,9 @@
 
 using from './admin/fiori-service';
 using from './browse/fiori-service';
-using from './orders/fiori-service';
 using from './common';
 
 using from '@capire/common';
+
+// only works in case of embedded orders service
+using from '@capire/orders/app/orders/fiori-service';

fiori/app/orders/webapp/Component.js

@@ -1,5 +0,0 @@
-sap.ui.define(["sap/fe/core/AppComponent"], ac => ac.extend("orders.Component", {
-    metadata:{ manifest:'json' }
-}))
-
-/* eslint no-undef:0 */

fiori/app/reviews.html

@@ -0,0 +1,3 @@
+<head>
+  <meta http-equiv="refresh" content="0;url=reviews/index.html">
+</head>

fiori/db/hana/index.cds

@@ -0,0 +1,10 @@
+//
+//  Add Author.age and .lifetime with a DB-specific function
+//
+
+using { AdminService } from '..';
+
+extend projection AdminService.Authors with {
+  YEARS_BETWEEN(dateOfBirth, dateOfDeath)         as age: Integer,
+  YEAR(dateOfBirth) || ' – ' || YEAR(dateOfDeath) as lifetime : String
+}

fiori/db/index.cds

@@ -0,0 +1,8 @@
+using { sap.capire.bookshop } from '@capire/bookshop';
+
+// Forward-declare calculated fields to be filled in database-specific ways
+// TODO find a better way to have 'default' fields that still can be overwritten.
+extend bookshop.Authors with {
+	virtual age: Integer;
+	virtual lifetime: String;
+}

fiori/db/schema.cds

@@ -1,3 +0,0 @@
-// Proxy for importing schema from bookshop sample
-using from '@capire/bookshop';
-namespace sap.capire.bookshop;

fiori/db/sqlite/index.cds

@@ -0,0 +1,10 @@
+//
+//  Add Author.age and .lifetime with a DB-specific function
+//
+
+using { AdminService } from '..';
+
+extend projection AdminService.Authors with {
+  strftime('%Y',dateOfDeath)-strftime('%Y',dateOfBirth)              as age: Integer,
+  strftime('%Y',dateOfBirth) || ' – ' || strftime('%Y',dateOfDeath)  as lifetime : String
+}

fiori/package.json

@@ -2,21 +2,48 @@
   "name": "@capire/fiori",
   "version": "1.0.0",
   "dependencies": {
-    "@capire/bookshop": "../bookshop",
-    "@capire/orders": "../orders",
-    "@capire/common": "../common",
-    "@sap/cds": ">=3.33.1",
-    "express": "^4.17.1"
+    "@capire/bookshop": "*",
+    "@capire/common": "*",
+    "@capire/orders": "*",
+    "@capire/reviews": "*",
+    "@capire/suppliers": "*",
+    "@sap/cds": "^4",
+    "express": "^4.17.1",
+    "passport": "^0.4.1"
   },
   "scripts": {
     "start": "cds run --in-memory?",
     "watch": "cds watch"
   },
   "cds": {
+    "hana": {
+      "deploy-format": "hdbtable"
+    },
     "requires": {
+      "API_BUSINESS_PARTNER": {
+        "kind": "odata",
+        "model": "@capire/suppliers"
+      },
+      "auth": {
+        "strategy": "dummy"
+      },
+      "ReviewsService": {
+        "kind": "odata",
+        "model": "@capire/reviews"
+      },
+      "OrdersService": {
+        "kind": "odata",
+        "model": "@capire/orders"
+      },
       "db": {
-        "kind": "sql"
+        "kind": "sql",
+        "[development]": {
+          "model": "db/sqlite"
+        },
+        "[production]": {
+          "model": "db/hana"
+        }
       }
     }
   }
-}
+}

fiori/server.js

@@ -0,0 +1,19 @@
+const cds = require ('@sap/cds')
+
+cds.once('bootstrap',(app)=>{
+  app.use ('/orders/webapp', _from('@capire/orders/app/orders/webapp/manifest.json'))
+  app.use ('/bookshop', _from('@capire/bookshop/app/vue/index.html'))
+  app.use ('/reviews', _from('@capire/reviews/app/vue/index.html'))
+})
+
+cds.once('served', require('./srv/mashup'))
+cds.once('served', require('@capire/suppliers/srv/mashup'))
+
+module.exports = cds.server
+
+
+// -----------------------------------------------------------------------
+// Helper for serving static content from npm-installed packages
+const {static} = require('express')
+const {dirname} = require('path')
+const _from = target => static (dirname (require.resolve(target)))

fiori/srv/admin-service.cds

@@ -1,3 +0,0 @@
-// Proxy for importing services from bookshop sample
-using from '@capire/bookshop';
-annotate AdminService with @impl:'srv/admin-service.js';

fiori/srv/admin-service.js

@@ -1,8 +0,0 @@
-const cds = require('@sap/cds')
-
-module.exports = cds.service.impl (async function() {
-  const {Books} = cds.entities
-  const {ID} = await SELECT.one.from(Books).columns('max(ID) as ID')
-  let newID = ID - ID % 100 + 100
-  this.before ('NEW','Books', req => req.data.ID = ++newID)
-})

fiori/srv/mashup.cds

@@ -0,0 +1,25 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//    Mashing up imported models...
+//
+
+using { sap.capire.bookshop.Books } from '@capire/bookshop';
+
+//
+//  Extend Books with access to Reviews and average ratings
+//
+
+using { ReviewsService.Reviews } from '@capire/reviews';
+extend Books with {
+  reviews : Composition of many Reviews on reviews.subject = $self.ID;
+  rating  : Decimal;
+}
+
+//
+//  Extend Orders with Books as Products
+//
+
+using { sap.capire.orders.Orders_Items } from '@capire/orders';
+extend Orders_Items with {
+  book : Association to Books on product.ID = book.ID
+}

fiori/srv/mashup.js

@@ -0,0 +1,59 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//    Mashing up provided and required services...
+//
+module.exports = async()=>{ // called by server.js
+
+  const cds = require('@sap/cds')
+  const CatalogService = await cds.connect.to ('CatalogService')
+  const ReviewsService = await cds.connect.to ('ReviewsService')
+  const OrdersService = await cds.connect.to ('OrdersService')
+  const db = await cds.connect.to ('db')
+
+  // reflect entity definitions used below...
+  const { Books } = db.entities ('sap.capire.bookshop')
+
+  //
+  // Delegate requests to read reviews to the ReviewsService
+  // Note: prepend is neccessary to intercept generic default handler
+  //
+  CatalogService.prepend (srv => srv.on ('READ', 'Books/reviews', (req) => {
+    console.debug ('> delegating request to ReviewsService')
+    const [id] = req.params, { columns, limit } = req.query.SELECT
+    return ReviewsService.tx(req).read ('Reviews',columns).limit(limit).where({subject:String(id)})
+  }))
+
+  //
+  // Create an order with the OrdersService when CatalogService signals a new order
+  //
+  CatalogService.on ('OrderedBook', async (msg) => {
+    const { book, amount, buyer } = msg.data
+    const { title, price } = await db.tx(msg).read (Books, book, b => { b.title, b.price })
+    return OrdersService.tx(msg).create ('Orders').entries({
+      OrderNo: 'Order at '+ (new Date).toLocaleString(),
+      Items: [{ product:{ID:`${book}`}, title, price, amount }],
+      buyer, createdBy: buyer
+    })
+  })
+
+  //
+  // Update Books' average ratings when ReviewsService signals updatd reviews
+  //
+  ReviewsService.on ('reviewed', (msg) => {
+    console.debug ('> received:', msg.event, msg.data)
+    const { subject, rating } = msg.data
+    return UPDATE(Books,subject).with({rating})
+    // ^ Note: the framework will execute this and take care for db.tx
+  })
+
+  //
+  // Reduce stock of ordered books for orders are created from Orders admin UI
+  //
+  OrdersService.on ('OrderChanged', (msg) => {
+    console.debug ('> received:', msg.event, msg.data)
+    const { product, deltaAmount } = msg.data
+    return UPDATE (Books) .where ('ID =', product)
+    .and ('stock >=', deltaAmount)
+    .set ('stock -=', deltaAmount)
+  })
+}

fiori/test/requests.http

@@ -0,0 +1,77 @@
+
+@bookshop = http://localhost:4004
+@reviews-service = {{bookshop}}/reviews
+# Uncomment this when running a separate reviews service
+@reviews-service = http://localhost:4005/reviews
+
+
+
+#################################################
+#
+#   Reviews Service
+#
+
+GET {{reviews-service}}/Reviews
+
+###
+
+POST {{reviews-service}}/Reviews
+Authorization: Basic {{$processEnv USER}}:
+Content-Type: application/json
+
+{"subject":"201", "title":"boo", "rating":3 }
+
+
+
+#################################################
+#
+#   Bookshop Services
+#
+
+GET {{bookshop}}/browse/Books/201/reviews?
+&$select=rating,date,title
+&$top=3
+
+###
+
+GET {{bookshop}}/browse/Books(201)?
+&$select=ID,title,rating
+&$expand=reviews
+
+
+
+#################################################
+#
+#   Orders Service, incl. draft choreography
+#
+@newOrderID = e939604c-ab83-4d4f-bdb6-95fe30b3773e
+
+GET {{bookshop}}/orders/Orders
+
+### Create order, still inactive
+POST {{bookshop}}/orders/Orders
+Content-Type: application/json
+
+{"ID": "{{newOrderID}}"}
+
+### Get inactive order.  We have to specify `IsActiveEntity`.
+GET {{bookshop}}/orders/Orders(ID={{newOrderID}},IsActiveEntity=false)
+
+### Activate order using `.../<servicename>.draftActivate`
+POST {{bookshop}}/orders/Orders(ID={{newOrderID}},IsActiveEntity=false)/OrdersService.draftActivate
+Content-Type: application/json
+
+### Get active order
+GET {{bookshop}}/orders/Orders(ID={{newOrderID}},IsActiveEntity=true)
+
+### Create author
+POST {{bookshop}}/admin/Authors
+Content-Type: application/json
+Authorization: Basic alice:
+
+{
+  "ID": 200,
+  "name": "William Shakespeare",
+  "dateOfBirth": "1564-04-26",
+  "dateOfDeath": "1616-04-23"
+}

media/test/media.http

@@ -0,0 +1,35 @@
+### Requires REST Client for VS Code
+### https://marketplace.visualstudio.com/items?itemName=humao.rest-client
+###
+@protocol = http
+@host = localhost
+@port = 4004
+### Read Pictures
+GET {{protocol}}://{{host}}:{{port}}/media-server/Media
+Authorization: Basic admin:
+
+### Create Picture with mediatype
+POST {{protocol}}://{{host}}:{{port}}/media-server/Media
+Authorization: Basic admin:
+Accept: application/json
+Content-Type: application/json
+
+{ 
+  "id": 1,
+  "mediaType": "image/png" 
+}
+
+### Upload Binary PNG
+PUT {{protocol}}://{{host}}:{{port}}/media-server/Media(1)/content
+Authorization: Basic admin:
+Content-Type: image/png
+
+< ./Test.png
+
+### Read Binary
+GET {{protocol}}://{{host}}:{{port}}/media-server/Media(1)/content
+Authorization: Basic admin:
+
+### Delete Image
+DELETE {{protocol}}://{{host}}:{{port}}/media-server/Media(1)
+Authorization: Basic admin:

orders/.env

@@ -0,0 +1,2 @@
+cds.requires.messaging.kind = file-based-messaging
+PORT = 4006

orders/app/fiori-app.html

@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html>
+<head>
+
+	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
+	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
+	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+	<title>Bookshop</title>
+
+	<script>
+		window["sap-ushell-config"] = {
+			defaultRenderer: "fiori2",
+			applications: {
+				"manage-orders": {
+					title: "Manage Orders",
+					description: "... testing FE v42",
+					additionalInformation: "SAPUI5.Component=orders",
+					applicationType : "URL",
+					url: "/orders/webapp",
+					navigationMode: "embedded"
+				}
+			}
+		};
+	</script>
+
+	<script id="sap-ushell-bootstrap" src="https://sapui5.hana.ondemand.com/test-resources/sap/ushell/bootstrap/sandbox.js"></script>
+	<script id="sap-ui-bootstrap" src="https://sapui5.hana.ondemand.com/resources/sap-ui-core.js"
+    	data-sap-ui-libs="sap.m, sap.ushell, sap.collaboration, sap.ui.layout"
+    	data-sap-ui-compatVersion="edge"
+    	data-sap-ui-theme="sap_fiori_3"
+    	data-sap-ui-frameOptions="allow"
+	></script>
+	<script>
+		sap.ui.getCore().attachInit(()=> sap.ushell.Container.createRenderer().placeAt("content"))
+	</script>
+
+</head>
+<body class="sapUiBody" id="content"></body>
+</html>

orders/app/index.cds

@@ -0,0 +1,5 @@
+/*
+  This model controls what gets served to Fiori frontends...
+*/
+
+using from './orders/fiori-service';

orders/app/orders/fiori-service.cds

@@ -1,44 +1,27 @@
-using OrdersService from '@capire/orders/srv/orders-service';
-
-annotate OrdersService.Books with {
-	price @Common.FieldControl: #ReadOnly;
-}
 
 
 ////////////////////////////////////////////////////////////////////////////
 //
-//	Common
+//	Note: this is designed for the OrdersService being co-located with
+//	bookshop. It does not work if OrdersService is run as a separate
+// 	process, and is not intended to do so.
 //
-annotate OrdersService.OrderItems with {
-	book @(
-		Common: {
-			Text: book.title,
-			FieldControl: #Mandatory
-		},
-		ValueList.entity:'Books',
-	);
-	amount @(
-		Common.FieldControl: #Mandatory
-	);
-}
+////////////////////////////////////////////////////////////////////////////
+
+
+
+using { OrdersService } from '../../srv/orders-service';
 
 
 @odata.draft.enabled
 annotate OrdersService.Orders with @(
 	UI: {
-		////////////////////////////////////////////////////////////////////////////
-		//
-		//	Lists of Orders
-		//
 		SelectionFields: [ createdAt, createdBy ],
 		LineItem: [
-			{Value: createdBy, Label:'Customer'},
+			{Value: OrderNo, Label:'OrderNo'},
+			{Value: buyer, Label:'Customer'},
 			{Value: createdAt, Label:'Date'}
 		],
-		////////////////////////////////////////////////////////////////////////////
-		//
-		//	Order Details
-		//
 		HeaderInfo: {
 			TypeName: 'Order', TypeNamePlural: 'Orders',
 			Title: {
@@ -62,7 +45,7 @@ annotate OrdersService.Orders with @(
 		],
 		FieldGroup#Details: {
 			Data: [
-				{Value: currency_code, Label:'Currency'}
+				{Value: currency.code, Label:'Currency'}
 			]
 		},
 		FieldGroup#Created: {
@@ -85,36 +68,25 @@ annotate OrdersService.Orders with @(
 
 
 
-//The enity types name is OrdersService.my_bookshop_OrderItems
-//The annotations below are not generated in edmx WHY?
-annotate OrdersService.OrderItems with @(
+annotate OrdersService.Orders_Items with @(
 	UI: {
-		HeaderInfo: {
-			TypeName: 'Order Item', TypeNamePlural: '	',
-			Title: {
-				Value: book.title
-			},
-			Description: {Value: book.descr}
-		},
-		// There is no filterbar for items so the selctionfileds is not needed
-		SelectionFields: [ book_ID ],
-		////////////////////////////////////////////////////////////////////////////
-		//
-		//	Lists of OrderItems
-		//
 		LineItem: [
-			{Value: book_ID, Label:'Book'},
-			//The following entry is only used to have the assoication followed in the read event
-			{Value: book.price, Label:'Book Price'},
+			{Value: product_ID, Label:'Product ID'},
+			{Value: title, Label:'Product Title'},
+			{Value: price, Label:'Unit Price'},
 			{Value: amount, Label:'Quantity'},
 		],
 		Identification: [ //Is the main field group
-			//{Value: ID, Label:'ID'}, //A guid shouldn't be on the UI
-			{Value: book_ID, Label:'Book'},
 			{Value: amount, Label:'Amount'},
+			{Value: title, Label:'Product'},
+			{Value: price, Label:'Unit Price'},
 		],
 		Facets: [
 			{$Type: 'UI.ReferenceFacet', Label: '{i18n>OrderItems}', Target: '@UI.Identification'},
 		],
 	},
-);
+) {
+	amount @(
+		Common.FieldControl: #Mandatory
+	);
+};

orders/app/orders/webapp/Component.js

@@ -0,0 +1,8 @@
+sap.ui.define(["sap/fe/core/AppComponent"], function(AppComponent) {
+	"use strict";
+	return AppComponent.extend("orders.Component", {
+		metadata: { manifest: "json" }
+	});
+});
+
+/* eslint no-undef:0 */

orders/app/orders/webapp/manifest.json

@@ -24,7 +24,7 @@
 	"sap.ui5": {
         "dependencies": {
             "libs": {
-                "sap.fe": {}
+                "sap.fe.templates": {}
             }
         },
 		"models": {
@@ -121,7 +121,7 @@
                     "name": "sap.fe.templates.ObjectPage",
                     "options": {
                         "settings" : {
-                            "entitySet": "OrderItems"
+                            "entitySet": "Orders_Items"
                         }
                     }
                 },

orders/db/data/sap.capire.bookshop-OrderItems.csv

@@ -1,4 +0,0 @@
-ID;amount;parent_ID;book_ID;netAmount
-58040e66-1dcd-4ffb-ab10-fdce32028b79;1;7e2f2640-6866-4dcf-8f4d-3027aa831cad;201;11.11
-64e718c9-ff99-47f1-8ca3-950c850777d4;1;7e2f2640-6866-4dcf-8f4d-3027aa831cad;271;15
-e9641166-e050-4261-bfee-d1e797e6cb7f;2;64e718c9-ff99-47f1-8ca3-950c850777d4;252;28

orders/db/data/sap.capire.bookshop-Orders.csv

@@ -1,3 +0,0 @@
-ID;modifiedAt;createdAt;createdBy;modifiedBy;OrderNo;currency_code
-7e2f2640-6866-4dcf-8f4d-3027aa831cad;;2019-01-31;john.doe@test.com;;1;EUR
-64e718c9-ff99-47f1-8ca3-950c850777d4;;2019-01-30;jane.doe@test.com;;2;EUR

orders/db/data/sap.capire.orders-Orders.csv

@@ -0,0 +1,3 @@
+ID;createdAt;createdBy;buyer;OrderNo;currency_code
+7e2f2640-6866-4dcf-8f4d-3027aa831cad;2019-01-31;john.doe@test.com;john.doe@test.com;1;EUR
+64e718c9-ff99-47f1-8ca3-950c850777d4;2019-01-30;jane.doe@test.com;jane.doe@test.com;2;EUR

orders/db/data/sap.capire.orders-Orders_Items.csv

@@ -0,0 +1,4 @@
+ID;up__ID;amount;product_ID;title;price
+58040e66-1dcd-4ffb-ab10-fdce32028b79;7e2f2640-6866-4dcf-8f4d-3027aa831cad;1;201;Wuthering Heights;11.11
+64e718c9-ff99-47f1-8ca3-950c850777d4;7e2f2640-6866-4dcf-8f4d-3027aa831cad;1;271;Catweazle;15
+e9641166-e050-4261-bfee-d1e797e6cb7f;64e718c9-ff99-47f1-8ca3-950c850777d4;2;252;Eleonora;28

orders/db/schema.cds

@@ -1,16 +1,23 @@
-using { sap.capire.bookshop.Books } from '@capire/bookshop';
-using { Currency, managed, cuid } from '@sap/cds/common';
-namespace sap.capire.bookshop;
+using { Currency, User, managed, cuid } from '@sap/cds/common';
+namespace sap.capire.orders;
 
 entity Orders : cuid, managed {
   OrderNo  : String @title:'Order Number'; //> readable key
-  Items    : Composition of many OrderItems on Items.parent = $self;
+  Items    : Composition of many Orders_Items on Items.up_ = $self;
+  buyer    : User;
   currency : Currency;
 }
 
-entity OrderItems : cuid {
-  parent    : Association to Orders;
-  book      : Association to Books;
+entity Orders_Items {
+  key ID    : UUID;
+  up_       : Association to Orders;
+  product   : Association to Products @assert.integrity:false; // REVISIT: this is a temporary workaround for a glitch in cds-runtime
   amount    : Integer;
-  netAmount : Decimal(9,2);
+  title     : String;
+  price     : Double;
+}
+
+/** This is a stand-in for arbitrary ordered Products */
+entity Products @(cds.persistence.skip:'always') {
+  key ID : String;
 }

orders/index.cds

@@ -0,0 +1,6 @@
+/*
+  This model controls what gets exposed
+*/
+namespace sap.capire.orders;
+using from './srv/orders-service';
+using from './db/schema';

orders/package.json

@@ -1,4 +1,7 @@
 {
   "name": "@capire/orders",
-  "version": "1.0.0"
+  "version": "1.0.0",
+  "dependencies": {
+    "@sap/cds": "^4.3.0"
+  }
 }

orders/srv/orders-service.cds

@@ -1,6 +1,5 @@
-using { sap.capire.bookshop as my } from '../db/schema';
+using { sap.capire.orders as my } from '../db/schema';
 
 service OrdersService {
   entity Orders as projection on my.Orders;
-  entity Books as projection on my.Books;
 }

orders/srv/orders-service.js

@@ -1,21 +1,37 @@
-const cds = require('@sap/cds')
+const cds = require ('@sap/cds')
+class OrdersService extends cds.ApplicationService {
 
-module.exports = cds.service.impl(function() {
+  /** register custom handlers */
+  init(){
+    const { Orders_Items:OrderItems } = this.entities
 
-  const { Books } = cds.entities
+    this.before ('UPDATE', 'Orders', async function(req) {
+      const { ID, Items } = req.data
+      if (Items) for (let { product_ID, amount } of Items) {
+        const { amount:before } = await cds.tx(req).run (
+          SELECT.one.from (OrderItems, oi => oi.amount) .where ({up__ID:ID, product_ID})
+        )
+        if (amount != before) await this.orderChanged (product_ID, amount-before)
+      }
+    })
 
-  // Reduce stock of ordered books if available stock suffices
-  this.before ('CREATE', 'Orders', (req) => {
-    const { Items: OrderItems } = req.data
-    return cds.transaction(req) .run (()=> OrderItems.map (order =>
-      UPDATE (Books) .where ('ID =', order.book_ID)
-      .and ('stock >=', order.amount)
-      .set ('stock -=', order.amount)
-    )) .then (all => all.forEach ((affectedRows,i) => {
-      if (affectedRows === 0)  req.error (409,
-        `${OrderItems[i].amount} exceeds stock for book #${OrderItems[i].book_ID}`
+    this.before ('DELETE', 'Orders', async function(req) {
+      const { ID } = req.data
+      const Items = await cds.tx(req).run (
+        SELECT.from (OrderItems, oi => { oi.product_ID, oi.amount }) .where ({up__ID:ID})
       )
-    }))
-  })
+      if (Items) await Promise.all (Items.map(it => this.orderChanged (it.product_ID, -it.amount)))
+    })
 
-})
+    return super.init()
+  }
+
+  /** order changed -> broadcast event */
+  orderChanged (product, deltaAmount) {
+    // Emit events to inform subscribers about changes in orders
+    console.log ('> emitting:', 'OrderChanged', { product, deltaAmount })
+    return this.emit ('OrderChanged', { product, deltaAmount })
+  }
+
+}
+module.exports = OrdersService

package.json

@@ -5,23 +5,33 @@
   "repository": "https://github.com/sap-samples/cloud-cap-samples.git",
   "author": "daniel.hutzel@sap.com",
   "dependencies": {
-    "@capire/bookshop": "file:bookshop",
-    "@capire/common": "file:common",
-    "@capire/fiori": "file:fiori",
-    "@capire/orders": "file:orders",
-    "@capire/reviews": "file:reviews",
-    "@capire/tests": "file:test"
+    "@capire/bookshop": "./bookshop",
+    "@capire/common": "./common",
+    "@capire/fiori": "./fiori",
+    "@capire/hello": "./hello",
+    "@capire/media": "./media",
+    "@capire/orders": "./orders",
+    "@capire/reviews": "./reviews",
+    "@capire/suppliers": "./suppliers"
   },
   "devDependencies": {
     "chai": "^4.2.0",
     "chai-as-promised": "^7.1.1",
     "chai-subset": "^1.6.0",
-    "sqlite3": "^4"
+    "sqlite3": "5.0.0"
   },
   "scripts": {
+    "fix-antlr": "sed -i -e 's/INVALID_ALT_NUMBER = require.*/INVALID_ALT_NUMBER = 0/' node_modules/antlr4/tree/Trees.js node_modules/antlr4/RuleContext.js",
+    "registry": "node .registry/server.js",
+    "bookshop": "cds watch bookshop",
+    "fiori": "cds watch fiori",
+    "media": "cds watch media",
     "mocha": "npx mocha || echo",
-    "jest": "npx jest --verbose",
-    "test": "npm run jest -s"
+    "jest": "npx jest",
+    "test": "npm run jest --silent"
+  },
+  "mocha": {
+    "parallel": true
   },
   "jest": {
     "testEnvironment": "node"

reviews/.env

@@ -1 +1,2 @@
-PORT = 5005
+cds.requires.messaging.kind = file-based-messaging
+PORT = 4005

reviews/app/vue/app.js

@@ -0,0 +1,72 @@
+/* global Vue axios */ //> from vue.html
+const $ = sel => document.querySelector(sel)
+const GET = (url) => axios.get('/reviews'+url)
+const PUT = (cmd,data) => axios.patch('/reviews'+cmd,data)
+const POST = (cmd,data) => axios.post('/reviews'+cmd,data)
+
+const reviews = new Vue ({
+
+    el:'#app',
+
+    data: {
+        list: [],
+        review: undefined,
+        message: {},
+        Ratings: Object.entries({
+            5 : '★★★★★',
+            4 : '★★★★',
+            3 : '★★★',
+            2 : '★★',
+            1 : '★',
+        }).reverse()
+    },
+
+    methods: {
+
+        search: ({target:{value:v}}) => reviews.fetch(v && '&$search='+v),
+
+        async fetch (etc='') {
+            const {data} = await GET(`/Reviews?${etc}`)
+            reviews.list = data.value
+        },
+
+        async inspect (eve) {
+            const review = reviews.review = reviews.list [eve.currentTarget.rowIndex-1]
+            const res = await GET(`/Reviews/${review.ID}/text/$value`)
+            review.text = res.data
+            reviews.message = {}
+        },
+
+        newReview () {
+            reviews.review = {}
+            reviews.message = {}
+            setTimeout (()=> $('form > input').focus(), 111)
+        },
+
+        async submitReview () {
+            const review = reviews.review; review.rating = parseInt (review.rating) // REVISIT: Okra should be less strict
+            try {
+                if (!review.ID) {
+                    const res = await POST(`/Reviews`,review)
+                    reviews.ID = res.data.ID
+                } else {
+                    console.trace()
+                    await PUT(`/Reviews/${review.ID}`,review)
+                }
+                reviews.message = { succeeded: 'Your review was submitted successfully. Thanks.' }
+            } catch (e) {
+                reviews.message = { failed: e.response.data.error.message }
+            }
+        }
+
+    },
+
+    filters: {
+        stars: (r) => ('★'.repeat(Math.round(r))+'☆☆☆☆☆').slice(0,5),
+        datetime: (d) => d && new Date(d).toLocaleString(),
+    },
+
+})
+
+// initially fill list of my reviews
+reviews.fetch()

reviews/app/vue/index.html

@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title> Capire Reviews </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 }
+        textarea { line-height: 1.4em;}
+    </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='my-reviews' class="hovering">
+        <thead>
+            <th> Subject </th>
+            <th> Rating </th>
+            <th> Title </th>
+            <th> Date </th>
+        </thead>
+        <tr v-for="review in list" v-bind:id="review.ID" v-on:click="inspect">
+            <td>{{ review.subject }}</td>
+            <td class="rating-stars">{{ review.rating | stars }}</td>
+            <td>{{ review.title }}</td>
+            <td>{{ review.date | datetime }}</td>
+        </tr>
+    </table>
+
+    <button v-on:click="newReview()" class="round-button muted-button">Add Review...</button>
+
+    <form v-if="review" @submit.prevent="submitReview">
+        <input id="subject" type="text" v-model="review.subject" style="font-weight:bold; display:inline; width:20%">
+        <input type="text" v-model="review.title" style="font-weight:bold; display:inline; width:60%">
+        <select v-model="review.rating" style="font-weight:bold; display:inline; width:17%; float: right;">
+            <option v-for="option in Ratings" v-bind:value="option[0]"> {{ option[1] }} </option>
+        </select>
+        <textarea v-model="review.text" rows="9"></textarea>
+        <input type="submit" value="Submit" class="round-button muted-button">
+        <span class="succeeded"> {{ message.succeeded }} </span>
+        <span class="failed"> {{ message.failed }} </span>
+    </form>
+    <div v-else style="margin-top: 2em;">
+        ( click on a row to see details... )
+    </div>
+
+
+</div>
+</body>
+
+<script src="app.js"></script>
+</html>

reviews/db/data/sap.capire.reviews-Reviews.csv

@@ -0,0 +1,5 @@
+subject;rating;title;text
+201;5;Intriguing;Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
+201;4;Fascinating;Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Id diam maecenas ultricies mi eget mauris pharetra et. Risus at ultrices mi tempus imperdiet nulla malesuada pellentesque. Pulvinar mattis nunc sed blandit libero. Facilisis magna etiam tempor orci eu. Nec sagittis aliquam malesuada bibendum arcu. Eu consequat ac felis donec. Ultricies tristique nulla aliquet enim tortor at auctor urna nunc. Tortor posuere ac ut consequat semper viverra nam libero. Amet nisl suscipit adipiscing bibendum est ultricies integer quis auctor. Scelerisque purus semper eget duis at tellus. Elementum tempus egestas sed sed risus pretium. Arcu dictum varius duis at. Amet luctus venenatis lectus magna fringilla urna. Eget velit aliquet sagittis id consectetur purus ut faucibus. Vitae auctor eu augue ut lectus. Fermentum iaculis eu non diam phasellus vestibulum.
+207;2;What is this?;Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Libero justo laoreet sit amet cursus sit amet dictum. Nunc faucibus a pellentesque sit. Dis parturient montes nascetur ridiculus mus mauris vitae ultricies. Enim nunc faucibus a pellentesque. Commodo quis imperdiet massa tincidunt nunc pulvinar sapien. Cras ornare arcu dui vivamus. Facilisi etiam dignissim diam quis enim lobortis. Et molestie ac feugiat sed. Urna neque viverra justo nec ultrices dui. Ullamcorper a lacus vestibulum sed arcu non. Volutpat ac tincidunt vitae semper quis. Dignissim sodales ut eu sem. Feugiat in fermentum posuere urna nec. At augue eget arcu dictum varius.
+251;3;It's dark...;Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Suscipit tellus mauris a diam. Velit aliquet sagittis id consectetur purus ut. Viverra adipiscing at in tellus integer. Vitae elementum curabitur vitae nunc. Mattis ullamcorper velit sed ullamcorper morbi. Diam quis enim lobortis scelerisque. Auctor neque vitae tempus quam pellentesque nec nam aliquam. Semper auctor neque vitae tempus. Quis eleifend quam adipiscing vitae proin. Neque convallis a cras semper auctor neque vitae. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Sit amet consectetur adipiscing elit ut aliquam purus. Pretium quam vulputate dignissim suspendisse.

reviews/db/schema.cds

@@ -17,7 +17,7 @@ entity Reviews {
   liked    : Integer default 0; // counter for likes as helpful review (count of all _likes belonging to this review)
 }
 
-type Rating : Decimal(3,2) enum {
+type Rating : Integer enum {
   Best  = 5;
   Good  = 4;
   Avg   = 3;

reviews/index.cds

@@ -1 +1,2 @@
 using from './srv/reviews-service';
+namespace sap.capire.reviews;

reviews/package.json

@@ -7,20 +7,17 @@
     "index.cds"
   ],
   "dependencies": {
-    "@sap/cds": ">=3.33.1",
+    "@sap/cds": "^4",
     "express": "^4.17.1"
   },
   "scripts": {
     "reviews-service": "cds watch",
-    "bookshop": "cds watch test/bookshop"
+    "books-reviewed": "cds watch ../reviewed"
   },
   "cds": {
     "requires": {
       "db": {
         "kind": "sql"
-      },
-      "messaging": {
-        "kind": "file-based-messaging"
       }
     }
   }

reviews/readme.md

@@ -3,19 +3,22 @@
 ## Run all-in-one
 
 Open a terminal window and run the bookshop in it:
+
 ```sh
 npm run bookshop
 ```
 
 
-## Run as separate services
+## Run as Separate Services
+
+Open two terminal windows. In the first one start the reviews service stand-alone:
 
-Open two terminal windows, and in the first one start the reviews service stand-alone:
 ```sh
 npm run reviews-service
 ```
 
-In the the second one start the bookshop:
+In the second one start the bookshop:
+
 ```sh
 npm run bookshop
 ```

reviews/srv/reviews-service.cds

@@ -8,30 +8,37 @@ service ReviewsService {
   action unlike (review: type of Reviews:ID);
 
   // Async API
-  event reviewed : {
-    subject: type of Reviews:subject;
-    rating: Decimal(2,1)
-  };
+   event reviewed : projection on Reviews {
+     subject,
+     rating
+   }
 
   // Input validation
   annotate Reviews with {
     subject  @mandatory;
     title    @mandatory;
-    rating   @mandatory @assert.enum;
+    rating   @assert.enum;
   }
 
 }
 
 
 // Access control restrictions
-annotate ReviewsService.Reviews with @restrict_:[
+annotate ReviewsService.Reviews with @restrict:[
   { grant:'READ',   to:'any' },                 // everybody can read reviews
   { grant:'CREATE', to:'authenticated-user' },  // users must login to add reviews
-  { grant:'UPDATE', to:'authenticated-user', where:'reviewer=$user' },
+  /////////////////////////////////////////////////
+  //
+  // Temporarily disabling this due to glitch in CAP Node.js runtime:
+  // { grant:'UPDATE', to:'authenticated-user', where:'reviewer=$user' },
+  // -> reenable it when the issue is fixed
+     { grant:'UPDATE', to:'authenticated-user' },
+  //
+  ////////////////////////////////////////////////////
   { grant:'DELETE', to:'admin' },
 ];
 
-annotate ReviewsService with @restrict_:[
+annotate ReviewsService with @restrict:[
   { grant:'like', to:'identified-user' },
   { grant:'unlike', to:'identified-user', where:'user=$user' },
 ];

reviews/srv/reviews-service.js

@@ -10,23 +10,20 @@ module.exports = cds.service.impl (function(){
   })
 
   // Emit an event to inform subscribers about new avg ratings for reviewed subjects
-  // ( Note: req.on.succeeded ensures we only do that if there's no error )
-  this.after (['CREATE','UPDATE','DELETE'], 'Reviews', async(_,req) => {
+  this.after (['CREATE','UPDATE','DELETE'], 'Reviews', async function(_,req) {
     const {subject} = req.data
-    const {rating} = await cds.transaction(req) .run (
+    const {rating} = await cds.tx(req) .run (
       SELECT.one (['round(avg(rating),2) as rating']) .from (Reviews) .where ({subject})
     )
-    req.on ('succeeded', ()=>{
-      global.it || console.log ('< emitting:', 'reviewed', { subject, rating })
-      this.emit ('reviewed', { subject, rating })
-    })
+    global.it || console.log ('< emitting:', 'reviewed', { subject, rating })
+    await this.emit ('reviewed', { subject, rating })
   })
 
   // Increment counter for reviews considered helpful
   this.on ('like', (req) => {
     if (!req.user)  return req.reject(400, 'You must be identified to like a review')
     const {review} = req.data, {user} = req
-    const tx = cds.transaction(req)
+    const tx = cds.tx(req)
     return tx.run ([
       INSERT.into (Likes) .entries ({review_ID: review, user: user.id}),
       UPDATE (Reviews) .set({liked: {'+=': 1}}) .where({ID:review})
@@ -37,7 +34,7 @@ module.exports = cds.service.impl (function(){
   this.on ('unlike', async (req) => {
     if (!req.user)  return req.reject(400, 'You must be identified to remove a former like of yours')
     const {review} = req.data, {user} = req
-    const tx = cds.transaction(req)
+    const tx = cds.tx(req)
     const affectedRows = await tx.run (DELETE.from (Likes) .where ({review_ID: review,user: user.id}))
     if (affectedRows === 1)  return tx.run (UPDATE (Reviews) .set ({liked: {'-=': 1}}) .where ({ID:review}))
   })

reviews/test/4004.http

@@ -1,36 +0,0 @@
-#################################################
-#
-#   To ReviewsService mocked in bookshop process
-#
-
-GET http://localhost:4004/reviews/Reviews?
-
-###
-
-POST http://localhost:4004/reviews/Reviews
-Content-Type: application/json;IEEE754Compatible=true
-
-{"subject":"201", "title":"boo"}
-
-
-
-#################################################
-#
-#   Bookshop Requests involving reviews
-#   (both in-process as well as separate one)
-#
-
-
-### Request to CatalogService > delegated to ReviewsService
-GET http://localhost:4004/browse/Books(201)/reviews?
-&$select=rating,date,reviewer,title
-
-### Alternative OData URL
-GET http://localhost:4004/browse/Books/201/reviews?
-&$select=rating,date,reviewer,title
-
-###
-GET http://localhost:4004/browse/Books(201)?
-&$select=ID,title,rating
-&$expand=reviews
-# Note: the $expand only works in case of ReviewsService in same process

reviews/test/5005.http

@@ -1,13 +0,0 @@
-#################################################
-#
-#   To ReviewsService running as separate process
-#
-
-GET http://localhost:5005/reviews/Reviews?
-
-###
-
-POST http://localhost:5005/reviews/Reviews
-Content-Type: application/json;IEEE754Compatible=true
-
-{"subject":"201", "title":"boo"}

reviews/test/bookshop/package.json

@@ -1,23 +0,0 @@
-{
-  "name": "@capire/bookshop-with-reviews",
-  "version": "1.0.0",
-  "dependencies": {
-    "@capire/bookshop": "../../../bookshop",
-    "@capire/reviews": "..",
-    "@sap/cds": "^3.33.1",
-    "express": "^4.17.1"
-  },
-  "cds": {
-    "requires": {
-      "db": {
-        "kind": "sql"
-      },
-      "ReviewsService": {
-        "kind": "odata", "model": "@capire/reviews"
-      },
-      "messaging": {
-        "kind": "file-based-messaging"
-      }
-    }
-  }
-}

reviews/test/bookshop/schema.cds

@@ -1,16 +0,0 @@
-//
-//  Extending Books with Reviews
-//
-
-using { sap.capire.bookshop.Books } from '@capire/bookshop';
-using { ReviewsService.Reviews } from '@capire/reviews';
-
-extend Books with {
-  /** Access to detailed collection of Reviews */
-  reviews : Composition of many Reviews on reviews.subject = $self.ID;
-  /** Average rating */
-  rating : Reviews.rating;
-}
-
-// Temporary workaround for cap/issues#4112:
-annotate Reviews with @cds.autoexpose;

reviews/test/bookshop/server.js

@@ -1,51 +0,0 @@
-////////////////////////////////////////////////////////////////////////////
-//
-//   This is an example of using a project-local server.js to intercept
-//   the default bootstrapping process.
-//
-
-const cds = require ('@sap/cds')
-
-// Mashup services after all are served...
-cds.once('served', async()=>{
-
-    // react on event messages from reviews service
-    const ReviewsService = await cds.connect.to ('ReviewsService')
-    const db = await cds.connect.to ('db')
-    ReviewsService.on ('reviewed', (msg) => {
-        console.debug ('> received:', msg.event, msg.data)
-        const { Books } = db.entities('sap.capire.bookshop')
-        const { subject, rating } = msg.data
-        const tx = db.tx (msg) // TODO: db.tx(msg) fully implemented?
-        return tx.update (Books,subject) .with ({rating})
-    })
-
-    // delegate requests to read reviews to ReviewsService
-    const CatalogService = await cds.connect.to ('CatalogService')
-    CatalogService.impl (srv => srv.on ('READ', 'Books/reviews', (req) => {
-        console.debug ('> delegating to ReviewsService')
-        const { Reviews } = ReviewsService.entities
-        const [ subject ] = req.params
-        const tx = ReviewsService.tx (req)
-        return tx.read (Reviews) .where({subject}) .columns (req.query.SELECT.columns)
-    }))
-
-})
-
-// Other bootstrapping events you could hook in to...
-/* eslint-disable no-unused-vars */
-cds.on('bootstrap',(app) => {/* ... */})
-cds.on('loaded', (model) => {/* ... */})
-cds.on('connect', (srv) => {/* ... */})
-cds.on('serving', (srv) => {/* ... */})
-cds.once('listening', ({server,url}) => {/* ... */})
-
-
-// Delegate bootstrapping to built-in server.js
-module.exports = cds.server
-
-// Monkey-patching older releases
-if (cds.version < '3.33.4') cds.once('listening', ()=> cds.emit('served'))
-
-// Launch server if started directly from command-line
-if (!module.parent)  cds.server()

samples.md

@@ -1,28 +1,28 @@
 # Overview of Samples
 
-The list below gives an overview of the samples provided in subdirectories.
-Each sub directory essentially is a individual npm package arranged in an [all-in-one monorepo](all-in-one-monorepo) umbrella setup.
+The following list gives an overview of the samples provided in subdirectories.
+Each sub directory essentially is an individual npm package arranged in an [all-in-one monorepo](all-in-one-monorepo) umbrella setup.
 
 
-## [hello](hello)
+## [@capire/hello-world](hello)
 
 - A simplistic [Hello World](https://cap.cloud.sap/docs/get-started/hello-world) service using [CDS](https://cap.cloud.sap/docs/cds/) and [cds.services](https://cap.cloud.sap/docs/node.js/api#services-api).
 
 
-## [bookshop](bookshop)
+## [@capire/bookshop](bookshop)
 
 - [Getting Started](https://cap.cloud.sap/docs/get-started/in-a-nutshell) with CAP, briefly introducing:
 - [Project Setup](https://cap.cloud.sap/docs/get-started/) and [Layouts](https://cap.cloud.sap/docs/get-started/projects)
-- [Domain Modelling](https://cap.cloud.sap/docs/guides/domain-models)
+- [Domain Modeling](https://cap.cloud.sap/docs/guides/domain-models)
 - [Defining Services](https://cap.cloud.sap/docs/guides/providing-services)
 - [Generic Providers](https://cap.cloud.sap/docs/guides/generic-providers)
 - [Adding Custom Logic](https://cap.cloud.sap/docs/guides/service-impl)
 - [Using Databases](https://cap.cloud.sap/docs/guides/databases)
 
 
-## [common](common)
+## [@capire/common](common)
 
-- Showcases how to extend [@sap/cds/common](https://cap.cloud.sap/docs/cds/common) thereby covering...
+- Showcases how to extend [@sap/cds/common](https://cap.cloud.sap/docs/cds/common) thereby covering:
 - Building [extension packages](https://cap.cloud.sap/docs/guides/domain-models#aspects-extensibility)
 - Providing [reuse packages](https://cap.cloud.sap/docs/get-started/projects#sharing-and-reusing-content)
 - [Verticalization](https://cap.cloud.sap/docs/cds/common#adapting-to-your-needs)
@@ -30,35 +30,47 @@ Each sub directory essentially is a individual npm package arranged in an [all-i
 - Used in the [fiori app sample](#fiori)
 
 
-## [orders](orders)
+## [@capire/orders](orders)
 
-- Adds orders to the [bookshop](#bookshop), thereby demonstrating...
+- A standalone orders management service, demonstrating:
 - Using [Compositions](https://cap.cloud.sap/docs/cds/cdl#compositions) in [Domain Models](https://cap.cloud.sap/docs/guides/domain-models), along with
 - [Serving deeply nested documents](https://cap.cloud.sap/docs/guides/generic-providers#serving-structured-data)
 
 
-## [reviews](reviews)
+## [@capire/reviews](reviews)
 
-- Shows how to implement a modular service to manage product reviews, including...
+- Shows how to implement a modular service to manage product reviews, including:
 - Consuming other services synchronously and asynchronously
 - Serving requests synchronously
 - Emitting events asynchronously
-- Grow as you go, with...
+- Grow as you go, with:
 - Mocking app services
 - Running service meshes
 - Late-cut Micro Services
-- As well as managed data, input validations and authorization
+- As well as managed data, input validations, and authorization
+
+## [@capire/suppliers](suppliers)
+
+- Shows how to integrate remote services, in this case the BusinessPartner service from SAP S/4HANA.
+- Extending [@capire/bookshop](bookshop) with suppliers from SAP S/4HANA
+- Providing that as a pre-built integration & extension package
+- Used in [@capire/fiori](fiori)
 
 
-## [fiori](fiori)
-
-- [Adds a Fiori elements application](https://cap.cloud.sap/docs/guides/fiori/), introducing to...
-- [OData Annotations](https://cap.cloud.sap/docs/guides/fiori#adding-odata-annotations) in `.cds` files
-- Support for [Fiori Draft](https://cap.cloud.sap/docs/guides/fiori#draft)
-- Support for [Value Helps](https://cap.cloud.sap/docs/guides/fiori#value-help)
-- Serving Fiori apps locally
-- Combining most of the other samples through [package reuse](https://cap.cloud.sap/docs/get-started/projects#sharing-and-reusing-content)
+## [@capire/fiori](fiori)
 
+- A [composite app, reusing and combining](https://cap.cloud.sap/docs/guides/verticalize) these packages:
+  - [@capire/bookshop](bookshop)
+  - [@capire/common](common)
+  - [@capire/orders](orders)
+  - [@capire/reviews](reviews)
+  - [@capire/suppliers](suppliers)
+- [Adds an SAP Fiori elements application](https://cap.cloud.sap/docs/guides/fiori/) to bookshop, thereby introducing to:
+  - [OData Annotations](https://cap.cloud.sap/docs/guides/fiori#adding-odata-annotations) in `.cds` files
+  - Support for [Fiori Draft](https://cap.cloud.sap/docs/guides/fiori#draft)
+  - Support for [Value Helps](https://cap.cloud.sap/docs/guides/fiori#value-help)
+  - Serving SAP Fiori apps locally
+- [The Vue.js app](bookshop/app/vue) imported from bookshop is served as well
 
 <br>
 

suppliers/index.cds

@@ -0,0 +1 @@
+using from './srv/mashup';

suppliers/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "@capire/suppliers",
+  "version": "1.0.0",
+  "description": "Shows integration with SAP S/4HANA, in turn provided as a reusable extension package to bookshop.",
+  "private": true,
+  "dependencies": {
+    "@capire/common": "*",
+    "@sap/cds": "^4",
+    "express": "^4"
+  },
+  "scripts": {
+    "start": "cds run --in-memory?",
+    "watch": "cds watch",
+    "mocked-s4": "cds mock API_BUSINESS_PARTNER"
+  },
+  "cds": {
+    "requires": {
+      "API_BUSINESS_PARTNER": {
+        "kind": "odata",
+        "model": "srv/external/API_BUSINESS_PARTNER"
+      }
+    }
+  }
+}

suppliers/server.js

@@ -0,0 +1,3 @@
+const cds = require ('@sap/cds')
+cds.once('served', require('./srv/mashup'))
+module.exports = cds.server

suppliers/srv/external/data/API_BUSINESS_PARTNER-A_BusinessPartner.csv

@@ -0,0 +1,7 @@
+BusinessPartner;BusinessPartnerFullName
+ACME;A Company Making Everything
+B4U;Books for You
+S&C;Shakespeare & Co.
+WSL;Waterstones
+TLD;Thalia
+PNG;Penguin Books

suppliers/srv/external/data/API_BUSINESS_PARTNER-Suppliers.csv

@@ -0,0 +1,5 @@
+ID;name
+ACME;A Company Making Everything
+B4U;Books for You
+S&C;Shakespeare & Co.
+WSL;Waterstones

suppliers/srv/mashup.cds

@@ -0,0 +1,25 @@
+/*
+  Optionally add projections to external entities, to capture what
+  you actually want to use from there.
+ */
+
+using {API_BUSINESS_PARTNER as S4} from './external/API_BUSINESS_PARTNER.csn';
+
+@cds.autoexpose // or expose explicitly in Catalog and AdminService
+@cds.persistence: {table,skip:false}
+entity sap.capire.bookshop.Suppliers as projection on S4.A_BusinessPartner {
+  key BusinessPartner as ID, BusinessPartnerFullName as name
+}
+
+using { sap.capire.bookshop.Books, CatalogService } from '@capire/bookshop';
+extend Books with {
+  supplier: Association to sap.capire.bookshop.Suppliers;
+}
+
+extend service AdminService with { // why is AdminService visible?
+  entity Suppliers as projection on sap.capire.bookshop.Suppliers;
+}
+
+extend projection CatalogService.ListOfBooks with {
+  supplier
+}

suppliers/srv/mashup.js

@@ -0,0 +1,57 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//    Mashing up provided and required services...
+//
+module.exports = async()=>{ // called by server.js
+
+  if (!cds.services.AdminService) return //> mocking S4 service only
+
+  // Connect to services we want to mashup below...
+  const S4bupa = await cds.connect.to('API_BUSINESS_PARTNER')   //> external S4 service
+  const admin = await cds.connect.to('AdminService')            //> local domain service
+  const db = await cds.connect.to('db')                         //> our primary database
+
+  // Reflect CDS definition of the Suppliers entity
+  const { Suppliers } = S4bupa.entities
+
+  admin.prepend (()=>{ //> to ensure our .on handlers below go before the default ones
+
+    // Delegate Value Help reads for Suppliers to S4 backend
+    admin.on ('READ', 'Suppliers', req => {
+      console.log ('>> delegating to S4 service...')
+      return S4bupa.run(req.query)
+    })
+
+    // Replicate Supplier data when edited Books have suppliers
+    admin.on (['CREATE','UPDATE'], 'Books', ({data:{supplier}}, next) => {
+      // Using Promise.all(...) to parallelize local write, i.e. next(), and replication
+      if (supplier) return Promise.all ([ next(), async()=>{
+        let replicated = await db.exists (Suppliers, supplier)
+        if (!replicated) await replicate (supplier, 'initial')
+      }])
+      else return next() //> don't forget to pass down the interceptor stack
+    })
+
+  })
+
+  // Subscribe to changes in the S4 origin of Suppliers data
+  S4bupa.on ('BusinessPartners/Changed', async msg => { //> would be great if we had batch events from S/4
+    let replicas = await SELECT('ID').from (Suppliers) .where ('ID in', msg.businessPartners)
+    return replicate (replicas.map(each => each.ID))
+  })
+
+  /**
+   * Helper function to replicate Suppliers data.
+   * @param {string|string[]} IDs a single ID or an array of IDs
+   * @param {truthy|falsy} _initial indicates whether an insert or an update is required
+   */
+  async function replicate (IDs,_initial) {
+    if (!Array.isArray(IDs)) IDs = [ IDs ]
+    let suppliers = await S4bupa.read (Suppliers).where('ID in',IDs)
+    if (_initial) return db.insert (suppliers) .into (Suppliers) //> using bulk insert
+    else return Promise.all(suppliers.map ( //> parallelizing updates
+      each => db.update (Suppliers,each.ID) .with (each)
+    ))
+  }
+
+}

test/_cds_tests.js

@@ -1,151 +0,0 @@
-////////////////////////////////////////////////////////////////////////////
-//
-//  This is included with cds in newer versions
-//
-////////////////////////////////////////////////////////////////////////////
-
-const { resolve, dirname } = require('path')
-const cwd = process.cwd()
-
-// harmonizing jest and mocha
-const is_mocha = !global.test
-const is_jest = !!global.test
-if (is_jest) { // it's jest
-  global.before = (msg,fn) => global.beforeAll(fn||msg)
-  global.after = (msg,fn) => global.afterAll(fn||msg)
-} else { // it's mocha
-  global.beforeAll = global.before
-  global.afterAll = global.after
-  global.test = global.it
-}
-
-/**
- * Test kit for jest or mocha testing, which can be used statically
- * via the getters for chai, expect and assert or through a server
- * started with .launch(...).
- */
-class CDSTestKit {
-
-  /**
-   * Creates a new instance serving projects from subfolders under the root
-   * specified by a sequence of path components which are concatenated with
-   * path.resolve().
-   */
-  for (...paths) {
-    const tk = new CDSTestKit
-    tk.root = resolve (...paths)
-    return tk
-  }
-
-  /** Lazily loads and returns an instance of chai */
-  get chai() {
-    const chai = require('chai')
-    chai.use (require('chai-as-promised'))
-    chai.use (require('chai-subset'))
-    Object.defineProperty (CDSTestKit.prototype, 'chai', {value:chai})
-    return chai
-  }
-  get expect(){ return this.chai.expect }
-  get assert(){ return this.chai.assert }
-
-  /**
-   * Launches a cds server with arbitrary port and returns a subclass which
-   * also acts as an axios lookalike, providing methods to send requests.
-   */
-  launch (project, ...args) {
-
-    // Setting up test server
-    const console = global.console, logs=[]
-    const axios = require('axios').default
-    const lazy = this, test = {
-
-      GET: (path,...etc) => axios.get (test.url+path,...etc) .catch(_error),
-      PUT: (path,...etc) => axios.put (test.url+path,...etc) .catch(_error),
-      POST: (path,...etc) => axios.post (test.url+path,...etc) .catch(_error),
-      PATCH: (path,...etc) => axios.patch (test.url+path,...etc) .catch(_error),
-      DELETE: (path,...etc) => axios.delete (test.url+path,...etc) .catch(_error),
-
-      get: (path,...etc) => axios.get (test.url+path,...etc) .catch(_error),
-      put: (path,...etc) => axios.put (test.url+path,...etc) .catch(_error),
-      post: (path,...etc) => axios.post (test.url+path,...etc) .catch(_error),
-      patch: (path,...etc) => axios.patch (test.url+path,...etc) .catch(_error),
-      delete: (path,...etc) => axios.delete (test.url+path,...etc) .catch(_error),
-
-      /** Lazily loads and returns an instance of chai */
-      get chai(){ return lazy.chai },
-      get expect(){ return lazy.expect },
-      get assert(){ return lazy.assert },
-    }
-
-    // launch cds server...
-    before (`launching cds server for ${project}...`, done => {
-
-      const cds = require('@sap/cds'), { isdir } = cds.utils
-
-      let cmd = 'run'
-      if (project.startsWith('cds ')) [ cmd, project ] = [ project.slice(4), args.shift() ]
-      if (!args.length) args = ['--in-memory?']
-
-      // Supporting .launch (<package name>)
-      if (cmd === 'run') {
-        if (isdir(project)) ; //> all fine
-        else if (isdir(resolve(this.root,project))) project = resolve(this.root,project)
-        else try { project = dirname (require.resolve(project+'/package.json')) }
-        catch(e) { throw cds.error (`Cannot resolve project folder for '${project}'`) }
-      }
-
-      if (!process.env.CDS_TEST_VERBOSE) global.console = { __proto__: global.console, logs,
-        time: ()=>{}, timeEnd: (...args)=> logs.push(args),
-        debug: (...args)=> logs.push(args),
-        log: (...args)=> logs.push(args),
-        warn: (...args)=> logs.push(args),
-        error: (...args)=> logs.push(args),
-        dump(){ for (let each of logs) console.log (...each) },
-      }
-
-      // return done (new Error(11))
-      process.env.PORT = '0'
-      const p = cds.exec (cmd, project, ...args) // TODO w/ @sap/cds@3.33.3: , '--port', '0')
-      if (p && 'catch' in p) p.catch (e => {
-        if (is_mocha) console.error(e)
-        done(e)
-      })
-
-      cds.once('listening', ({ server, url }) => {
-        Object.assign (test,{server,url})
-        done()
-      })
-    })
-
-    // shutdown cds server...
-    after (done => {
-      if (global.console !== console) global.console = console
-      if (cwd !== process.cwd())  process.chdir(cwd)
-      test.server ? test.server.close (done) : done()
-      process.emit('shutdown')
-    })
-
-    function _error (e) {
-      if (!e.response)  throw e
-      if (!e.response.data)  throw e
-      if (!e.response.data.error)  throw e
-      const { code, message } = e.response.data.error
-      throw new Error (code && code !== 'null' ? `${code} - ${message}` : message)
-    }
-
-    return test
-  }
-
-}
-
-// eslint-disable-next-line no-global-assign
-require = (mod) => {
-  try { return module.require(mod) }
-  catch(e) { if (e.code === 'MODULE_NOT_FOUND') throw new Error (`
-    Failed to load required package '${mod}'. Please add it thru:
-    npm add -D ${mod === 'chai' ? 'chai chai-as-promised chai-subset' : mod}
-  `) }
-}
-
-module.exports = new CDSTestKit
-exports.root = __dirname

test/capire.js

@@ -1 +0,0 @@
-module.exports = require('./_cds_tests').for(__dirname,'..')