Update README.md

.eslintrc

@@ -6,7 +6,7 @@
         "jest": true
     },
     "parserOptions": {
-        "ecmaVersion": 2018
+        "ecmaVersion": 2017
     },
     "globals": {
         "SELECT": true,

.npmrc

@@ -1 +1 @@
-registry=https://registry.npmjs.org
+@sap:registry=https://npm.sap.com

.vscode/launch.json

@@ -5,45 +5,20 @@
   "version": "0.2.0",
   "configurations": [
     {
-      "name": "bookshop",
+      "name": "cds run",
       "request": "launch",
       "type": "node",
       "runtimeExecutable": "npx",
-      "runtimeArgs": [
+      "runtimeArgs": ["-n"],
-        "-n"
+      "args": ["--", "cds", "run", "--with-mocks", "--in-memory?"], // the leading "--" arg ensures it works with as well as without debugging
-      ],
-      "args": [
-        "--",
-        "cds",
-        "run",
-        "--in-memory"
-      ],
-      "cwd": "${workspaceFolder}/packages/bookshop",
-      "console": "integratedTerminal",
-      "skipFiles": [
-        "<node_internals>/**"
-      ]
-    },
-    {
-      "name": "cds run ...",
-      "request": "launch",
-      "type": "node",
-      "runtimeExecutable": "npx",
-      "runtimeArgs": [
-        "-n"
-      ],
-      "args": [
-        "--",
-        "cds",
-        "run",
-        "--with-mocks",
-        "--in-memory?"
-      ],
       "cwd": "${workspaceFolder}/packages/${input:service}",
       "console": "integratedTerminal",
-      "skipFiles": [
+      "serverReadyAction": {
-        "<node_internals>/**"
+        "pattern": "server listening on (https?://\\S+|[0-9]+)",
-      ]
+        "uriFormat": "http://localhost:%s",
+        "action": "openExternally"
+      },
+      "skipFiles": ["<node_internals>/**"]
     }
   ],
   "inputs": [
@@ -56,9 +31,12 @@
         "bookstore",
         "media-server",
         "office-supplies",
-        "reviews-service"
+        "orders-service",
+        "products-service",
+        "reviews-service",
+        "user-service"
       ],
-      "default": "bookshop"
+      "default": "bookstore"
     }
   ]
 }

.vscode/settings.json

@@ -1,6 +1,7 @@
 {
   "files.exclude": {
-    "**/.gitignore": true,
+    "**/.gitignore": false,
-    "**/.vscode": true
+    "**/.git": false,
+    "**/.vscode": false
   }
 }

.vscode/tasks.json

@@ -4,14 +4,23 @@
     "version": "2.0.0",
     "tasks": [
         {
-            "type": "npm", "script": "watch", "path": "packages/bookshop/",
+            "type": "shell", "label": "cds run bookshop",
-            "options": { "env": { "PORT": "4004" }},
+            "command": "npx", "args": [ "cds", "watch", "packages/bookshop" ],
-            "presentation": { "group": "A" }
+            "presentation": { "group": "A" },
+            "problemMatcher": []
         },
         {
-            "type": "npm", "script": "watch", "path": "packages/reviews-service/",
+            "type": "shell", "label": "cds run bookshop-enhanced",
+            "command": "npx", "args": [ "cds", "watch", "packages/bookshop-enhanced" ],
+            "presentation": { "group": "A" },
+            "problemMatcher": []
+        },
+        {
+            "type": "shell", "label": "cds run reviews-service",
+            "command": "npx", "args": [ "cds", "watch", "packages/reviews-service" ],
             "options": {"env": { "PORT":"5005" }},
-            "presentation": { "group": "A" }
+            "presentation": { "group": "A" },
+            "problemMatcher": []
         }
     ]
 }

README.md

@@ -11,7 +11,7 @@ In SAP Business Application Studio, open a terminal.
 Then clone the repo with this specific branch:
 
 ```sh
-git clone https://github.com/sap-samples/cloud-cap-samples projects/cloud-cap-samples -b openSAP-week3-unit5
+git clone https://github.com/sap-samples/cloud-cap-samples projects/cloud-cap-samples -b openSAP-week4-unit1-final
 cd projects/cloud-cap-samples
 ```
 
@@ -25,87 +25,11 @@ npm install
 Now you're ready to run the samples, for example:
 ```sh
 cd packages/bookshop
-cds deploy
 cds watch
 ```
 
 After that, watch out for the little popup in the lower right corner of SAP Business Application Studio that asks you to open the application in your browser.
 
-## Hints
-- If your demo user logon window does not show up:  clear the browsers login data
-- If your port is still in use run in your terminal:
-```
-> pkill node      //kill running node proceses
-```
-
-## Deploy to Cloud Foundry
-
-Clean-up the CF space in your trial account if you already used it before. Make sure that there are no services or applications deployed.
-
-Generation of the XSUAA service configuration file xs-security.json:
-```sh
-cds compile srv/ --to xsuaa > xs-security.json
-```
-
-In this unit we use  [MTA](https://sap.github.io/cloud-mta-build-tool/) to do the deployment to CF
-```sh
-npm install -g mbt
-```
-You can generate the MTA.yaml from CDS and do manual modifications or simply use the already generated and adapted  mta.yaml in the branch and directly generate the .mtar file
-
-
-
-#### BEGIN OPTIONAL PART
-
-If you want to generate the MTA.YAML yourself please do the following:
-
-- Generate the mta.yaml with the HANA dependency
-```sh
-cds add hana --force
-cds add mta
-```
-
-- Add the path to the generated xs-security.json in the MTA.YAML
-```
-    parameters:
-         path: ./xs-security.json
-         service:xsuaa
-         service-plan: application
-         ....
-```
-- Add the application block in the MTA.YAML
-```
-     ##############    APP   #########################
-     - name: capire-bookshop-app
-       type: nodejs
-       path: gen/app
-       parameters:
-          memory: 256M
-       build-parameters:
-         requires:
-           - name: capire-bookshop-srv
-       requires:
-        - name: capire-bookshop-uaa
-        - name: srv-binding
-          group: destinations
-          properties:
-             forwardAuthToken: true
-             name: srv-binding
-             url: ~{srv-url}
-```
-- Make sure to use service hanatrial instead of hana in the MTA.YAML
-```
-   parameters:
-     service: hanatrial
-```
-#### END OPTIONAL PART
-
-Generate the .mtar file for the deployment and deploy to cloud foundry:
-```sh
-mbt build -t ./
-cf login -a https://api.cf.eu10.hana.ondemand.com
-cf deploy sap.capire-bookshop_1.0.0.mtar
-```
 
 ## Get Support
 

db/package.json

@@ -1,12 +0,0 @@
-{
-  "name": "deploy",
-  "dependencies": {
-    "@sap/hdi-deploy": "^3.8.2"
-  },
-  "engines": {
-    "node": "^8"
-  },
-  "scripts": {
-    "start": "node node_modules/@sap/hdi-deploy/deploy.js"
-  }
-}

package.json

@@ -5,20 +5,23 @@
   "author": "daniel.hutzel@sap.com",
   "private": true,
   "scripts": {
-    "lerna": "npx --no-install lerna -v > /dev/null || npm i lerna --no-save",
-    "install": "(npm -s run lerna) && lerna bootstrap --hoist",
     "cleanup": "lerna clean -y && rm -fr node_modules",
-    "bookshop": "cds watch packages/bookshop"
+    "install": "(npm -s run lerna) && lerna bootstrap --hoist",
+    "lerna": "npx --no-install lerna -v > /dev/null || npm i lerna --no-save",
+    "test": "jest",
+    "bookshop-enhanced": "cds watch packages/bookshop-enhanced",
+    "bookshop": "cds watch packages/bookshop",
+    "bookstore": "cds watch packages/bookstore",
+    "products-service": "cds watch packages/products-service",
+    "reviews-service": "cds watch packages/reviews-service"
   },
   "dependencies": {
-    "@sap/cds": "^4",
+    "@sap/cds": "^3",
     "express": "^4"
   },
-  "devDependencies": {
-    "sqlite3": "*"
-  },
   "--add-these-to-devDependencies-for-tests": {
     "@types/jest": "*",
+    "sqlite3": "*",
     "jest": "*"
   },
   "license": "SAP SAMPLE CODE LICENSE"

packages/bookshop/.cdsrc.json

@@ -1,67 +0,0 @@
-{
-    "odata": {
-        "version": "v4"
-    },
-    "build": {
-        "target": "gen",
-        "tasks": [
-            {
-                "src": "db",
-                "for": "hana",
-                "options": {
-                    "model": [
-                        "db",
-                        "srv"
-                    ]
-                }
-            },
-            {
-                "src": "srv",
-                "for": "node-cf",
-                "options": {
-                    "model": [
-                        "db",
-                        "srv",
-                        "app"
-                    ]
-                }
-            },
-            {
-                "src": "app",
-                "for": "fiori",
-                "options": {
-                    "model": [
-                        "app"
-                    ]
-                }
-            }
-        ]
-    },
-    "auth": {
-        "passport": {
-            "strategy": "mock",
-            "users": {
-                "alice": {
-                    "password": "123",
-                    "ID": "alice",
-                    "roles": [
-                        "admin",
-                        "authenticated-user"
-                    ],
-                    "xs.user.attributes": {
-                        "currency": [
-                            "USD"
-                        ]
-                    }
-                },
-                "bob": {
-                    "password": "123",
-                    "ID": "bob",
-                    "roles": [
-                        "authenticated-user"
-                    ]
-                }
-            }
-        }
-    }
-}

packages/bookshop/.vscode/launch.json

@@ -1,29 +0,0 @@
-{
-  "version": "0.2.0",
-  "configurations": [
-    {
-      "name": "Run bookshop",
-      "request": "launch",
-      "type": "node",
-      "cwd": "/home/user/projects/cloud-cap-samples/packages/bookshop",
-      "runtimeExecutable": "npx",
-      "runtimeArgs": [
-        "-n"
-      ],
-      "args": [
-        "--",
-        "cds",
-        "run",
-        "--in-memory?"
-      ],
-      "console": "internalConsole",
-      "internalConsoleOptions": "openOnSessionStart",
-      "skipFiles": [
-        "<node_internals>/**"
-      ],
-      "env": {
-        "run.config": "{\"handlerId\":\"cap_run_config_handler_id\",\"runnableId\":\"/home/user/projects/cloud-cap-samples/packages/bookshop\"}"
-      }
-    }
-  ]
-}

packages/bookshop/app/fiori.html

@@ -43,7 +43,7 @@
 	<script 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-theme="sap_belize"
     	data-sap-ui-frameOptions="allow"
 	></script>
 	<script>

packages/bookshop/app/package.json

@@ -1,11 +0,0 @@
-{
-  "name": "capire-bookshop-approuter",
-  "version": "0.0.1",
-  "description": "",
-  "dependencies": {
-    "@sap/approuter": "^8"
-  },
-  "scripts": {
-    "start": "node node_modules/@sap/approuter/approuter.js"
-  }
-}

packages/bookshop/app/xs-app.json

@@ -1,22 +0,0 @@
-{
-  "welcomeFile": "/fiori.html",
-  "authenticationMethod": "route",
-  "routes": [
-    {
-      "source": "^/.*(html|js)$",
-      "localDir": "."
-    },
-    {
-      "source": "^/sapui5/.*",
-      "localDir": "."
-    },
-    {
-      "source": "^/.*/webapp/.*",
-      "localDir": "."
-    },
-    {
-      "source": "/",
-      "destination": "srv-binding"
-    }
-  ]
-}

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

@@ -1,3 +1,5 @@
-ID;modifiedAt;createdAt;createdBy;modifiedBy;OrderNo;currency_code
+ID;modifiedAt;createdAt;createdBy;modifiedBy;OrderNo;currency_code;status
-7e2f2640-6866-4dcf-8f4d-3027aa831cad;;2019-01-31;john.doe@test.com;;1;EUR
+da86efd0-4ba1-4078-b7f0-5c9c530297f7;;2019-01-31;ALICE;;1;EUR;processing
-64e718c9-ff99-47f1-8ca3-950c850777d4;;2019-01-30;jane.doe@test.com;;2;EUR
+2f2f2640-6866-4dcf-8f4d-3027aa831cad;;2019-03-25;ALICE;;10;EUR;completed
+64e718c9-ff99-47f1-8ca3-950c850777d4;;2019-01-30;BOB;;2;EUR;processing
+1af3322d-3cb1-46be-b312-0ae9ec311537;;2019-03-16;BOB;;9;EUR;completed

packages/bookshop/db/package.json

@@ -1,12 +0,0 @@
-{
-  "name": "deploy",
-  "dependencies": {
-    "@sap/hdi-deploy": "^3.8.2"
-  },
-  "engines": {
-    "node": "^12"
-  },
-  "scripts": {
-    "start": "node node_modules/@sap/hdi-deploy/deploy.js"
-  }
-}

packages/bookshop/db/schema.cds

@@ -1,5 +1,16 @@
 namespace sap.capire.bookshop;
-using { Currency, managed, cuid } from '@sap/cds/common';
+
+using {
+  Currency,
+  managed,
+  cuid
+} from '@sap/cds/common';
+
+type Status : String enum {
+  completed;
+  processing;
+  blocked;
+}
 
 entity Books : managed {
   key ID       : Integer;
@@ -18,15 +29,19 @@ entity Authors : managed {
       dateOfDeath  : Date;
       placeOfBirth : String;
       placeOfDeath : String;
-  books  : Association to many Books on books.author = $self;
+      books        : Association to many Books
+                       on books.author = $self;
 }
 
 entity Orders : cuid, managed {
   OrderNo  : String       @title : 'Order Number'; //> readable key
-  Items    : Composition of many OrderItems on Items.parent = $self;
+  status   : Status default 'processing';
+  Items    : Composition of many OrderItems
+               on Items.parent = $self;
   total    : Decimal(9, 2)@readonly;
   currency : Currency;
 }
+
 entity OrderItems : cuid {
   parent    : Association to Orders;
   book      : Association to Books;

packages/bookshop/db/src/.hdiconfig

@@ -1,136 +0,0 @@
-{
-    "file_suffixes": {
-        "csv": {
-            "plugin_name": "com.sap.hana.di.tabledata.source"
-        },
-        "hdbafllangprocedure": {
-            "plugin_name": "com.sap.hana.di.afllangprocedure"
-        },
-        "hdbanalyticprivilege": {
-            "plugin_name": "com.sap.hana.di.analyticprivilege"
-        },
-        "hdbcalculationview": {
-            "plugin_name": "com.sap.hana.di.calculationview"
-        },
-        "hdbcollection": {
-            "plugin_name": "com.sap.hana.di.collection"
-        },
-        "hdbconstraint": {
-            "plugin_name": "com.sap.hana.di.constraint"
-        },
-        "hdbdropcreatetable": {
-            "plugin_name": "com.sap.hana.di.dropcreatetable"
-        },
-        "hdbflowgraph": {
-            "plugin_name": "com.sap.hana.di.flowgraph"
-        },
-        "hdbfunction": {
-            "plugin_name": "com.sap.hana.di.function"
-        },
-        "hdbgraphworkspace": {
-            "plugin_name": "com.sap.hana.di.graphworkspace"
-        },
-        "hdbhadoopmrjob": {
-            "plugin_name": "com.sap.hana.di.virtualfunctionpackage.hadoop"
-        },
-        "hdbindex": {
-            "plugin_name": "com.sap.hana.di.index"
-        },
-        "hdblibrary": {
-            "plugin_name": "com.sap.hana.di.library"
-        },
-        "hdbmigrationtable": {
-            "plugin_name": "com.sap.hana.di.table.migration"
-        },
-        "hdbprocedure": {
-            "plugin_name": "com.sap.hana.di.procedure"
-        },
-        "hdbprojectionview": {
-            "plugin_name": "com.sap.hana.di.projectionview"
-        },
-        "hdbprojectionviewconfig": {
-            "plugin_name": "com.sap.hana.di.projectionview.config"
-        },
-        "hdbreptask": {
-            "plugin_name": "com.sap.hana.di.reptask"
-        },
-        "hdbresultcache": {
-            "plugin_name": "com.sap.hana.di.resultcache"
-        },
-        "hdbrole": {
-            "plugin_name": "com.sap.hana.di.role"
-        },
-        "hdbroleconfig": {
-            "plugin_name": "com.sap.hana.di.role.config"
-        },
-        "hdbsearchruleset": {
-            "plugin_name": "com.sap.hana.di.searchruleset"
-        },
-        "hdbsequence": {
-            "plugin_name": "com.sap.hana.di.sequence"
-        },
-        "hdbstatistics": {
-            "plugin_name": "com.sap.hana.di.statistics"
-        },
-        "hdbstructuredprivilege": {
-            "plugin_name": "com.sap.hana.di.structuredprivilege"
-        },
-        "hdbsynonym": {
-            "plugin_name": "com.sap.hana.di.synonym"
-        },
-        "hdbsynonymconfig": {
-            "plugin_name": "com.sap.hana.di.synonym.config"
-        },
-        "hdbsystemversioning": {
-            "plugin_name": "com.sap.hana.di.systemversioning"
-        },
-        "hdbtable": {
-            "plugin_name": "com.sap.hana.di.table"
-        },
-        "hdbtabledata": {
-            "plugin_name": "com.sap.hana.di.tabledata"
-        },
-        "hdbtabletype": {
-            "plugin_name": "com.sap.hana.di.tabletype"
-        },
-        "hdbtrigger": {
-            "plugin_name": "com.sap.hana.di.trigger"
-        },
-        "hdbview": {
-            "plugin_name": "com.sap.hana.di.view"
-        },
-        "hdbvirtualfunction": {
-            "plugin_name": "com.sap.hana.di.virtualfunction"
-        },
-        "hdbvirtualfunctionconfig": {
-            "plugin_name": "com.sap.hana.di.virtualfunction.config"
-        },
-        "hdbvirtualpackagehadoop": {
-            "plugin_name": "com.sap.hana.di.virtualpackage.hadoop"
-        },
-        "hdbvirtualpackagesparksql": {
-            "plugin_name": "com.sap.hana.di.virtualpackage.sparksql"
-        },
-        "hdbvirtualprocedure": {
-            "plugin_name": "com.sap.hana.di.virtualprocedure"
-        },
-        "hdbvirtualprocedureconfig": {
-            "plugin_name": "com.sap.hana.di.virtualprocedure.config"
-        },
-        "hdbvirtualtable": {
-            "plugin_name": "com.sap.hana.di.virtualtable"
-        },
-        "hdbvirtualtableconfig": {
-            "plugin_name": "com.sap.hana.di.virtualtable.config"
-        },
-        "properties": {
-            "plugin_name": "com.sap.hana.di.tabledata.properties"
-        },
-        "tags": {
-            "plugin_name": "com.sap.hana.di.tabledata.properties"
-        },
-        "txt": {
-            "plugin_name": "com.sap.hana.di.copyonly"
-        }
-    }
-}

packages/bookshop/mta.yaml

@@ -1,94 +0,0 @@
-####### Generated mta.yaml based on template version 0.2.0
-####### appName = capire-bookshop
-####### language=nodejs; multiTenant=
-####### approuter=
-_schema-version: '3.1'
-ID: sap.capire-bookshop
-version: 1.0.0
-description: "A simple bookshop application, build in a self-contained all-in-one fashion, i.e. w/o reusing other packages."
-
-build-parameters:
-  before-all:
-   - builder: custom
-     commands:
-      - npm install
-      - cds build/all
-
-parameters:
-  enable-parallel-deployments: true  
-
-modules:
- ##############    SERVER MODULE   ##########################
- - name: capire-bookshop-srv
-   type: nodejs
-   path: gen/srv
-   properties:
-     EXIT: 1  # required by deploy.js task to terminate 
-
-   
-   requires:
-    #### Resources extracted from CAP configuration ####
-    - name: capire-bookshop-db
-    - name: capire-bookshop-uaa
-
-   provides:
-    - name: srv-binding    # required by consumers of CAP services (e.g. approuter)
-      properties:
-        srv-url: ${default-url}
-
- ############################################################
-
- ##############    SIDECAR MODULE   #########################
- - name: db
-    
-   type: hdb
-   path: gen/db  
-   parameters:
-     app-name: capire-bookshop-db  
-   requires:
-    #### Hana and xsuaa resources extracted from CAP configuration ####
-    - name: capire-bookshop-db
-    - name: capire-bookshop-uaa
- ############################################################
-
-  ##############    APP   #########################
- - name: capire-bookshop-app
-   type: nodejs
-   path: gen/app
-   parameters:
-      memory: 256M
-   build-parameters:
-     requires:
-       - name: capire-bookshop-srv
-   requires:
-    - name: capire-bookshop-uaa
-    - name: srv-binding
-      group: destinations
-      properties:
-         forwardAuthToken: true
-         name: srv-binding
-         url: ~{srv-url}
-
-##############  RESOURCES  ##################################
-resources:
- ##### Services extracted from CAP configuration  ####
- ##### 'service-plan' can be configured via 'cds.requires.<name>.vcap.plan'
- - name: capire-bookshop-db
-   type: com.sap.xs.hdi-container 
-   
-   parameters:
-     service: hanatrial
-   properties:
-     hdi-service-name: ${service-name}   # required for Java case
- - name: capire-bookshop-uaa
-    
-   type: org.cloudfoundry.managed-service
-   parameters:
-    ##### Path to xs-security.json to add roles and scopes   ####    
-     path: ./xs-security.json
-     service: xsuaa
-     service-plan: application  
-     config:
-       xsappname: capire-bookshop-${space}    #  name + space dependency
-       tenant-mode: dedicated
-############################################################

packages/bookshop/package.json

@@ -4,25 +4,21 @@
   "description": "A simple bookshop application, build in a self-contained all-in-one fashion, i.e. w/o reusing other packages.",
   "license": "SAP SAMPLE CODE LICENSE",
   "dependencies": {
-        "@sap/cds": "^4",
+    "@sap/cds": "^3",
     "express": "^4",
-        "hdb": "^0.18.1",
+    "@sap/xb-msg-amqp-v100": "^0.9.35"
-        "passport": "^0.4.1"
+  },
+  "devDependencies": {
+    "sqlite3": "^4.1.1"
   },
   "scripts": {
-        "start": "cds run --in-memory?",
+    "start": "npx cds run"
-        "watch": "cds watch"
   },
   "cds": {
     "requires": {
-            "db": {
+      "API_BUSINESS_PARTNER": {
-                "kind": "sql",
+        "kind": "odata",
-                "[production]": {
+        "model": "srv/external/API_BUSINESS_PARTNER"
-                    "kind": "hana"
-                }
-            },
-            "uaa": {
-                "kind": "xsuaa"
       }
     }
   }

packages/bookshop/srv/admin-service.cds

@@ -14,7 +14,3 @@ annotate AdminService.Orders with @odata.draft.enabled;
 extend service AdminService with {
   entity OrderItems as select from my.OrderItems;
 }
-// Restrict access to orders to users with role "admin"
- annotate AdminService.Orders with  @(restrict: [
-   { grant: 'READ', to: 'admin' } 
-  ]);

packages/bookshop/srv/admin-service.js

@@ -1,10 +0,0 @@
-/** Service implementation for AdminService */
-module.exports = cds.service.impl(function() {
-    this.before ('CREATE', 'Orders', _checkOrderCreateAuth)
-  })
-  
-  
-  /** Check authorization  */
-  function _checkOrderCreateAuth (req) {
-    req.user.currency[0] === req.data.currency_code || req.reject(403)
-  }

packages/bookshop/srv/cat-service.cds

@@ -8,10 +8,6 @@ service CatalogService {
   } excluding { createdBy, modifiedBy };
 
   @requires_: 'authenticated-user'
-  entity Orders as projection on my.Orders;
+  @insertonly entity Orders as projection on my.Orders;
 
 }
-// Example for an instance restriction
- annotate CatalogService.Orders with  @(restrict: [
-   { grant: 'READ', where: 'currency_code = $user.currency'  } 
-  ]);

packages/bookshop/srv/cat-service.js

@@ -1,11 +1,10 @@
 const cds = require('@sap/cds')
-const { Books } = cds.entities
 
 /** Service implementation for CatalogService */
 module.exports = cds.service.impl(function () {
-  this.after ('READ', 'Books', each => each.stock > 111 && _addDiscount2(each,11))
+  const { Books, Orders } = this.entities
-  this.before ('CREATE', 'Orders', _reduceStock)
+  this.after('READ', Books, each => each.stock > 111 && _addDiscount2(each, 11))
-})
+  this.before('CREATE', Orders, _reduceStock)
 
   /** Add some discount for overstocked books */
   function _addDiscount2(each, discount) {
@@ -14,20 +13,14 @@ function _addDiscount2 (each,discount) {
 
   /** Reduce stock of ordered books if available stock suffices */
   async function _reduceStock(req) {
-  const { Items: orderItems } = req.data
+    const { Items: OrderItems } = req.data
-  if (!Array.isArray(orderItems))  return
+    return cds.transaction(req).run(() => OrderItems.map(order =>
-
+      UPDATE(Books).set('stock -=', order.amount)
-  const all = await cds.transaction(req).run(orderItems.map(item =>
+        .where('ID =', order.book_ID).and('stock >=', order.amount)
-    UPDATE(Books)
+    )).then(all => all.forEach((affectedRows, i) => {
-      .set('stock -=', item.amount)
+      if (affectedRows === 0) req.error(409,
-      .where('ID =', item.book_ID).and('stock >=', item.amount)
+        `${OrderItems[i].amount} exceeds stock for book #${OrderItems[i].book_ID}`
-  ))
+      )
-  all.forEach((affectedRows, i) => {
+    }))
-    if (affectedRows === 0) {
-      req.error(409, `${orderItems[i].amount} exceeds stock for book #${orderItems[i].book_ID}`)
   }
 })
-
- return all
-
-}

packages/bookshop/xs-security.json

@@ -1,37 +0,0 @@
-{
-  "xsappname": "capire-bookshop",
-  "tenant-mode": "dedicated",
-  "scopes": [
-    {
-      "name": "$XSAPPNAME.admin",
-      "description": "admin"
-    }
-  ],
-  "attributes": [
-    {
-      "name": "currency",
-      "description": "currency",
-      "valueType": "s",
-      "valueRequired": false
-    }
-  ],
-  "role-templates": [
-    {
-      "name": "admin",
-      "description": "generated",
-      "scope-references": [
-        "$XSAPPNAME.admin"
-      ],
-      "attribute-references": []
-    },
-    {
-      "name": "userattributes",
-      "description": "generated",
-      "default-role-name": "Attributes of a User",
-      "scope-references": [],
-      "attribute-references": [
-        "currency"
-      ]
-    }
-  ]
-}