Fixed: missing await srv.emit

bookshop/srv/cat-service.cds

@@ -1,12 +1,12 @@
 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 };
 
   @readonly entity ListOfBooks as SELECT from Books
-  excluding { descr, stock };
+  excluding { descr };
 
   @requires: 'authenticated-user'
   action submitOrder ( book: Books:ID, amount: Integer ) returns { stock: Integer };

bookshop/srv/cat-service.js

@@ -1,7 +1,7 @@
 const cds = require('@sap/cds')
 const { Books } = cds.entities ('sap.capire.bookshop')
 
-class CatalogService extends cds.ApplicationService { async init(){
+class CatalogService extends cds.ApplicationService { init(){
 
   // Reduce stock of ordered books if available stock suffices
   this.on ('submitOrder', async req => {
@@ -9,7 +9,7 @@ class CatalogService extends cds.ApplicationService { async init(){
     let {stock} = await tx.read('stock').from(Books,book)
     if (stock >= amount) {
       await tx.update (Books,book).with ({ stock: stock -= amount })
-      this.emit ('OrderedBook', { book, amount, buyer:req.user.id })
+      await this.emit ('OrderedBook', { book, amount, buyer:req.user.id })
       return { stock }
     }
     else return req.error (409,`${amount} exceeds stock for book #${book}`)