Added reviews/test/bookshop

reviews/srv/reviews-service.cds

@@ -1,5 +1,4 @@
 using { sap.capire.reviews as my } from '../db/schema';
-namespace sap.capire.reviews;
 
 service ReviewsService {
   // Sync API

reviews/srv/reviews-service.js

@@ -5,9 +5,9 @@ module.exports = cds.service.impl (function(){
   // ( Note: we explicitly specify the namespace to support embedded reuse )
   const { Reviews, Likes } = this.entities ('sap.capire.reviews')
 
-  // this.before (['CREATE','UPDATE'], 'Reviews', req => {
-  //   if (!req.data.rating) req.data.rating = Math.round(Math.random()*4)+1
-  // })
+  this.before (['CREATE','UPDATE'], 'Reviews', req => {
+    if (!req.data.rating) req.data.rating = Math.round(Math.random()*4)+1
+  })
 
   // 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 )
@@ -17,7 +17,7 @@ module.exports = cds.service.impl (function(){
       SELECT.one (['round(avg(rating),2) as rating']) .from (Reviews) .where ({subject})
     )
     req.on ('succeeded', ()=>{
-      console.log ('< emitting:', 'reviewed', { subject, rating })
+      global.it || console.log ('< emitting:', 'reviewed', { subject, rating })
       this.emit ('reviewed', { subject, rating })
     })
   })

reviews/test/bookshop/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "@capire/bookshop-with-reviews",
+  "version": "1.0.0",
+  "dependencies": {
+    "@capire/bookshop": "*",
+    "@capire/reviews": "*",
+    "@sap/cds": "^3.31.1",
+    "express": "^4.17.1"
+  },
+  "cds": {
+    "requires": {
+      "db": {
+        "kind": "sql"
+      },
+      "ReviewsService": {
+        "kind": "odata"
+      },
+      "messaging": {
+        "kind": "file-based-messaging"
+      }
+    }
+  }
+}

reviews/test/bookshop/schema.cds

@@ -0,0 +1,13 @@
+//
+//  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;
+}

reviews/test/bookshop/server.js

@@ -0,0 +1,35 @@
+const cds = require ('@sap/cds')
+
+cds.on('listening', async()=>{
+
+        // connect to requires services
+    const ReviewsService = await cds.connect.to ('ReviewsService')
+    const CatalogService = await cds.connect.to ('CatalogService')
+    const db = await cds.connect.to ('db')
+
+    // import model definitions from connected services to work with subsequently
+    const { Reviews } = ReviewsService.entities
+    const { Books } = db.entities
+
+    // react on event messages from reviews service
+    ReviewsService.on ('reviewed', (msg) => {
+        console.debug ('> received:', msg.event, msg.data)
+        const { subject, rating } = msg.data
+        const tx = db // TODO: db.transaction (msg)
+        return tx.run (UPDATE (Books, subject) .with ({rating}))
+        // return tx.update (Books, subject) .with ({rating})
+    })
+
+    console.log (Reviews.name)
+    // delegate requests to read reviews to ReviewsService
+    CatalogService.impl (srv => {
+        srv.on ('READ', 'Books/reviews', (req) => {
+            const [ subject ] = req.params
+            const tx = ReviewsService.transaction (req)
+            return tx.run (SELECT.from (Reviews) .where ({subject}))
+        })
+    })
+
+})
+
+module.exports = cds.server

reviews/test/messaging.test.js

@@ -1,6 +1,6 @@
 const _model = __dirname+'/..'
 const cds = require ('@sap/cds')
-const {expect} = require('chai').use(require('chai-subset'))
+const {expect} = cds.require.chai
 
 describe('messaging tests', ()=>{
 

reviews/test/requests.http

@@ -4,21 +4,6 @@
 #
 
 
-### Use this one for ReviewsService running as a separate process
-# Note: use 5005 instead of 4004 in case of separate service
-POST http://localhost:5005/reviews/Reviews
-# POST http://localhost:4004/reviews/Reviews
-Content-Type: application/json;IEEE754Compatible=true
-
-{"subject":"201", "rating":"4", "title":"boo"}
-
-### Direct Request to ReviewsService
-# Note: use 5005 instead of 4004 in case of separate service
-GET http://localhost:5005/reviews/Reviews?
-# GET http://localhost:4004/reviews/Reviews?
-# &$filter=subject eq '201'
-
-
 ### Request to CatalogService > delegated to ReviewsService
 GET http://localhost:4004/browse/Books(201)/reviews
 
@@ -28,5 +13,28 @@ GET http://localhost:4004/browse/Books/201/reviews
 ###
 GET http://localhost:4004/browse/Books(201)?
 &$select=ID,title,rating
-# &$expand=reviews
+&$expand=reviews
 # Note: the latter only works in case of ReviewsService in same process
+
+
+
+### ReviewsService mocked in same process
+GET http://localhost:4004/reviews/Reviews?
+
+###
+POST http://localhost:4004/reviews/Reviews
+Content-Type: application/json;IEEE754Compatible=true
+
+{"subject":"201", "title":"boo"}
+
+
+
+
+### 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"}