feat: multitenancy support

.vscode/launch.json

@@ -40,6 +40,16 @@
       "runtimeArgs": ["run", "test"],
       "skipFiles": ["<node_internals>/**"],
       "console": "integratedTerminal"
+    },
+    {
+      "type": "pwa-node",
+      "request": "launch",
+      "name": "watch sample hybrid",
+      "cwd": "${workspaceFolder}/test/bookshop",
+      "runtimeExecutable": "cds",
+      "runtimeArgs": ["bind", "--exec", "--", "cds", "w"],
+      "skipFiles": ["<node_internals>/**"],
+      "console": "integratedTerminal"
     }
   ]
 }

CHANGELOG.md

@@ -4,7 +4,16 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
-## Version 0.1.0 - TBD
+## Version 0.2.0 - 2025-12-19
+
+### Added
+- Multitenancy support
+
+### Fixed
+- Draft enabled entities can be print enabled
+- Entities with composite keys can be print enabled
+
+## Version 0.1.0 - 2025-11-28
 
 ### Added
 

cds-plugin.js

@@ -90,14 +90,19 @@ cds.once("served", async () => {
                 ],
               });
 
-              return req.info({
+              return req.notify({
                 status: 200,
                 message: "PRINT_JOB_SENT",
                 args: [object[fileNameAttribute], queueID],
               });
             } catch (error) {
-              LOG.error("Print error:", error);
-              return req.reject({ status: 500, message: "PRINT_UNKNOWN_ERROR" });
+              LOG.error(error);
+              // Only return client errors to not show technical errors to the user
+              if (error.code >= 400 && error.code < 500) {
+                req.reject(error.code, error.message);
+              } else {
+                req.reject(500, "PRINT_UNKNOWN_ERROR");
+              }
             }
           });
         }

eslint.config.js

@@ -4,6 +4,21 @@ export default [
   ...cds,
   {
     files: ["**/*.js"],
+    languageOptions: {
+      globals: {
+        SELECT: "readonly",
+        INSERT: "readonly",
+        UPSERT: "readonly",
+        UPDATE: "readonly",
+        DELETE: "readonly",
+        CREATE: "readonly",
+        DROP: "readonly",
+        CDL: "readonly",
+        CQL: "readonly",
+        CXL: "readonly",
+        cds: "readonly",
+      },
+    },
     rules: {
       "no-await-in-loop": "error",
       "no-console": ["error", { allow: ["warn", "error"] }],

lib/btp-utils.js

@@ -0,0 +1,29 @@
+const { XsuaaService } = require("@sap/xssec");
+
+const getServiceCredentials = (name) => (cds?.env?.requires[name] || [])?.credentials;
+
+async function getServiceToken(serviceName) {
+  const srvCredentials = getServiceCredentials(serviceName);
+  if (!srvCredentials) {
+    throw new Error(`Missing binding credentials for service "${serviceName}"`);
+  }
+
+  const tenantId = cds.context?.tenant;
+  const xsuaaService = new XsuaaService(srvCredentials.uaa);
+  const { access_token: jwt, expires_in } = await xsuaaService.fetchClientCredentialsToken({
+    ...(tenantId && { zid: tenantId }),
+  });
+
+  if (!jwt) {
+    throw new Error(
+      `Empty JWT returned from authorization service for bound service "${serviceName}"`,
+    );
+  }
+
+  return { jwt, expires_in };
+}
+
+module.exports = {
+  getServiceToken,
+  getServiceCredentials,
+};

lib/token-cache.js

@@ -0,0 +1,29 @@
+const cds = require("@sap/cds");
+const LOG = cds.log("print");
+
+module.exports = class TokenCache {
+  constructor() {
+    this.cache = new Map();
+  }
+
+  set(key, token, expiresIn) {
+    const expiresAt = Date.now() + expiresIn * 1000;
+    this.cache.set(key, { token, expiresAt });
+    LOG.debug(`Token set for key: ${key}, expires in ${expiresIn} seconds.`);
+  }
+
+  get(key) {
+    const entry = this.cache.get(key);
+    if (!entry) {
+      LOG.debug(`No token found for key: ${key}.`);
+      return undefined;
+    }
+    if (Date.now() >= entry.expiresAt) {
+      this.cache.delete(key);
+      LOG.debug(`Token expired for key: ${key}.`);
+      return undefined;
+    }
+    LOG.debug(`Token retrieved for key: ${key}.`);
+    return entry.token;
+  }
+};

package.json

@@ -22,9 +22,9 @@
     "plugin"
   ],
   "dependencies": {
-    "@sap-cloud-sdk/connectivity": "^3.26.4",
-    "@sap-cloud-sdk/http-client": "^4.1.2",
-    "@sap/xssec": "^3.6.2"
+    "@sap-cloud-sdk/connectivity": "^4.2.0",
+    "@sap-cloud-sdk/http-client": "^4.2.0",
+    "@sap-cloud-sdk/resilience": "^4.2.0"
   },
   "peerDependencies": {
     "@sap/cds": ">= 9"
@@ -38,8 +38,7 @@
   ],
   "cds": {
     "requires": {
-      "destinations": true,
-      "PrintService": {
+      "print": {
         "[development]": {
           "kind": "print-to-console"
         },
@@ -53,7 +52,10 @@
           "kind": "print-to-service"
         },
         "vcap": {
-          "tag": "print"
+          "label": "print"
+        },
+        "subscriptionDependency": {
+          "uaa": "xsappname"
         },
         "outbox": true
       },

srv/BTPPrintService.cds

@@ -1,5 +1,6 @@
 @impl: './BTPPrintService.js'
 @requires: 'authenticated-user'
+@protocol: 'none'
 service PrintService {
 
   @UI.HeaderInfo: {