PoC for code sandboxing

ext/srv/AdminService.js

@@ -0,0 +1,10 @@
+module.exports = cds.service.impl(function(){
+
+  this.before(['CREATE','UPDATE'],'Books', req => {  //> ....
+    const book = req.data
+    if (book.stock < 10 && book.discount > 0.5) {
+      req.error('Hey, da sind so wenig übrig, die wollen wir nicht zu billig verticken')
+    }
+  })
+
+})

ext/srv/CatalogService.js

@@ -0,0 +1,9 @@
+console.log ('Böses Zeug', global, process, cds)
+// process.exit()
+// const fs = require('fs')
+// cds.run('Böses Zeugs')
+// SELECT.from ('Foo')
+
+module.exports = cds.service.impl(function(){
+  this.after('READ','Books', each => each.title += ' (served through sandbox)')
+})