From 71a5f862392181d1d51abf814325e70aa69a6445 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Fri, 1 Nov 2024 12:08:16 +0100
Subject: [PATCH 01/14] fix: ignore .idea folder as well

---
 .gitignore                                  | 3 +++
 application-templates/typescript/.gitignore | 1 +
 2 files changed, 4 insertions(+)

diff --git a/.gitignore b/.gitignore
index 3123401..4b9e734 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,6 @@ application-templates/**/yarn.lock
 application-templates/starter-typescript/job/.env
 application-templates/starter-typescript/job/.env.*
 !application-templates/starter-typescript/job/.env.example
+
+#IDE
+.idea
diff --git a/application-templates/typescript/.gitignore b/application-templates/typescript/.gitignore
index d2a7535..9b9b5e4 100644
--- a/application-templates/typescript/.gitignore
+++ b/application-templates/typescript/.gitignore
@@ -6,6 +6,7 @@ coverage
 
 .DS_Store
 .vscode
+.idea
 build/
 .env
 public/
\ No newline at end of file

From eac3991d2e7fdb1574f19d42bfbc5f7a13c9f6ba Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Fri, 1 Nov 2024 12:19:57 +0100
Subject: [PATCH 02/14] fix: ignore .env and all .env.* except .env.example
 files

---
 .gitignore | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.gitignore b/.gitignore
index 4b9e734..8ee12b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,6 +35,9 @@ application-templates/**/yarn.lock
 application-templates/starter-typescript/job/.env
 application-templates/starter-typescript/job/.env.*
 !application-templates/starter-typescript/job/.env.example
+application-templates/typescript/event/.env
+application-templates/typescript/event/.env.*
+!application-templates/typescript/event/.env.example
 
 #IDE
 .idea

From 808987fe0ac2feeb4fd86962c5d4d9a2f5c188b4 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Fri, 1 Nov 2024 14:01:11 +0100
Subject: [PATCH 03/14] feat: adding a "real" testcase

---
 .../typescript/event/jest.config.cjs          |  2 +
 .../event/tests/integration/event.spec.ts     | 89 +++++++++++++++++++
 .../typescript/event/tests/setup-tests.ts     |  3 +
 .../typescript/event/tsconfig.json            |  2 +-
 4 files changed, 95 insertions(+), 1 deletion(-)
 create mode 100644 application-templates/typescript/event/tests/integration/event.spec.ts
 create mode 100644 application-templates/typescript/event/tests/setup-tests.ts

diff --git a/application-templates/typescript/event/jest.config.cjs b/application-templates/typescript/event/jest.config.cjs
index 71f629d..096067f 100644
--- a/application-templates/typescript/event/jest.config.cjs
+++ b/application-templates/typescript/event/jest.config.cjs
@@ -2,6 +2,8 @@ module.exports = {
   displayName: 'Tests Typescript Application - Event',
   moduleDirectories: ['node_modules', 'src'],
   testMatch: ['**/tests/**/*.[jt]s?(x)', '**/?(*.)+(spec|test).[tj]s?(x)'],
+  testPathIgnorePatterns: ['tests/setup-tests.ts'],
   preset: 'ts-jest',
   testEnvironment: 'node',
+  setupFiles: ['<rootDir>/tests/setup-tests.ts'],
 };
diff --git a/application-templates/typescript/event/tests/integration/event.spec.ts b/application-templates/typescript/event/tests/integration/event.spec.ts
new file mode 100644
index 0000000..c7cb285
--- /dev/null
+++ b/application-templates/typescript/event/tests/integration/event.spec.ts
@@ -0,0 +1,89 @@
+import { describe, expect } from '@jest/globals';
+import { CustomerCreatedMessage, Customer } from '@commercetools/platform-sdk';
+import request from 'supertest';
+import app from '../../src/app';
+import { createApiRoot } from '../../src/client/create.client';
+
+jest.mock('../../src/client/create.client', () => {
+  const mockCreateApiRoot = jest.fn();
+  return {
+    createApiRoot: mockCreateApiRoot,
+  };
+});
+
+const customerId = 'd93a8493-1bfd-4e2d-8b46-20a765dd0978';
+
+const customer: Customer = {
+  id: customerId,
+  createdAt: '',
+  lastModifiedAt: '',
+  version: 0,
+  email: '',
+  isEmailVerified: true,
+  addresses: [],
+  authenticationMode: 'Password',
+};
+
+const orderCreatedMessage: CustomerCreatedMessage = {
+  createdAt: '',
+  id: '',
+  lastModifiedAt: '',
+  resource: { id: customerId, typeId: 'customer' },
+  resourceVersion: 0,
+  sequenceNumber: 0,
+  type: 'CustomerCreated',
+  version: 0,
+  customer: customer,
+};
+
+describe('Testing Event Controller', () => {
+  it('Customer Created (Mocked)', async () => {
+    // Define a mock root to be returned
+    const withId = jest.fn().mockReturnValueOnce({
+      get: jest.fn().mockReturnValueOnce({
+        execute: jest.fn().mockReturnValueOnce(customer),
+      }),
+    });
+    const mockRoot = {
+      customers: jest.fn().mockReturnValueOnce({
+        withId: withId,
+      }),
+    };
+
+    // Set the mock implementation for createApiRoot to return mockRoot
+    (createApiRoot as jest.Mock).mockReturnValueOnce(mockRoot);
+
+    const response = await request(app)
+      .post('/event')
+      .send({
+        message: {
+          data: Buffer.from(JSON.stringify(orderCreatedMessage)).toString(
+            'base64'
+          ),
+        },
+      });
+    expect(response.status).toBe(204);
+    expect(withId).toHaveBeenCalledWith({ ID: customerId });
+  });
+
+  /*
+   * This Test really want to call the commercetools APIs. To do so,
+   * - remove the mocking code in line 7-12
+   * - configure a "real" customerId
+   * - remove the skip below
+   *
+   * The code below comes in handy to test during development.
+   */
+  it.skip('Customer Created', async () => {
+    const response = await request(app)
+      .post('/event')
+      .send({
+        message: {
+          data: Buffer.from(JSON.stringify(orderCreatedMessage)).toString(
+            'base64'
+          ),
+        },
+      });
+    expect(response.status).toBe(204);
+  });
+});
diff --git a/application-templates/typescript/event/tests/setup-tests.ts b/application-templates/typescript/event/tests/setup-tests.ts
new file mode 100644
index 0000000..b7998b4
--- /dev/null
+++ b/application-templates/typescript/event/tests/setup-tests.ts
@@ -0,0 +1,3 @@
+import { config } from 'dotenv';
+config();
+config({ path: `.env.local`, override: true });
diff --git a/application-templates/typescript/event/tsconfig.json b/application-templates/typescript/event/tsconfig.json
index fb87b83..fc83f98 100644
--- a/application-templates/typescript/event/tsconfig.json
+++ b/application-templates/typescript/event/tsconfig.json
@@ -1,6 +1,6 @@
 {
   "extends": "@tsconfig/recommended/tsconfig.json",
-  "exclude": ["node_modules", "**/*.spec.ts"],
+  "exclude": ["node_modules", "**/*.spec.ts", "**/setup-tests.ts"],
   "compilerOptions": {
     "resolveJsonModule": true,
     "outDir": "./build",

From b3f0153692f42423aff168e8d2e3585ceed23d3d Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Fri, 1 Nov 2024 14:01:46 +0100
Subject: [PATCH 04/14] feat: typing jsonData and validating that the
 messagetype is really of type "CustomerCreated"

---
 .../typescript/event/src/controllers/event.controller.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/application-templates/typescript/event/src/controllers/event.controller.ts b/application-templates/typescript/event/src/controllers/event.controller.ts
index 622a773..6031185 100644
--- a/application-templates/typescript/event/src/controllers/event.controller.ts
+++ b/application-templates/typescript/event/src/controllers/event.controller.ts
@@ -2,6 +2,7 @@ import { Request, Response } from 'express';
 import { createApiRoot } from '../client/create.client';
 import CustomError from '../errors/custom.error';
 import { logger } from '../utils/logger.utils';
+import { Message } from '@commercetools/platform-sdk';
 
 /**
  * Exposed event POST endpoint.
@@ -36,9 +37,13 @@ export const post = async (request: Request, response: Response) => {
     : undefined;
 
   if (decodedData) {
-    const jsonData = JSON.parse(decodedData);
+    const jsonData: Message | null = JSON.parse(decodedData);
 
-    customerId = jsonData.customer.id;
+    if (jsonData) {
+      if (jsonData.type === 'CustomerCreated') {
+        customerId = jsonData.customer.id;
+      }
+    }
   }
 
   if (!customerId) {

From 3dc91597fbd826b757fbf82e42a9085ef9d1ba4d Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Mon, 4 Nov 2024 10:37:59 +0100
Subject: [PATCH 05/14] feat: removing customercreated from e.g. key and
 subscriptions to allow the template to be reused more often without adaptions

---
 .../typescript/event/src/connector/actions.ts   | 17 ++++++++---------
 .../event/src/connector/post-deploy.ts          | 15 ++++-----------
 .../event/src/connector/pre-undeploy.ts         |  4 ++--
 3 files changed, 14 insertions(+), 22 deletions(-)

diff --git a/application-templates/typescript/event/src/connector/actions.ts b/application-templates/typescript/event/src/connector/actions.ts
index 78cf9cc..f2e08a4 100644
--- a/application-templates/typescript/event/src/connector/actions.ts
+++ b/application-templates/typescript/event/src/connector/actions.ts
@@ -5,10 +5,9 @@ import {
 } from '@commercetools/platform-sdk';
 import { ByProjectKeyRequestBuilder } from '@commercetools/platform-sdk/dist/declarations/src/generated/client/by-project-key-request-builder';
 
-const CUSTOMER_CREATE_SUBSCRIPTION_KEY =
-  'myconnector-customerCreateSubscription';
+const SUBSCRIPTION_KEY = 'myconnector-customerCreateSubscription';
 
-export async function createGcpPubSubCustomerCreateSubscription(
+export async function createGcpPubSubSubscription(
   apiRoot: ByProjectKeyRequestBuilder,
   topicName: string,
   projectId: string
@@ -21,7 +20,7 @@ export async function createGcpPubSubCustomerCreateSubscription(
   await createSubscription(apiRoot, destination);
 }
 
-export async function createAzureServiceBusCustomerCreateSubscription(
+export async function createAzureServiceBusSubscription(
   apiRoot: ByProjectKeyRequestBuilder,
   connectionString: string
 ): Promise<void> {
@@ -36,12 +35,12 @@ async function createSubscription(
   apiRoot: ByProjectKeyRequestBuilder,
   destination: Destination
 ) {
-  await deleteCustomerCreateSubscription(apiRoot);
+  await deleteSubscription(apiRoot);
   await apiRoot
     .subscriptions()
     .post({
       body: {
-        key: CUSTOMER_CREATE_SUBSCRIPTION_KEY,
+        key: SUBSCRIPTION_KEY,
         destination,
         messages: [
           {
@@ -54,7 +53,7 @@ async function createSubscription(
     .execute();
 }
 
-export async function deleteCustomerCreateSubscription(
+export async function deleteSubscription(
   apiRoot: ByProjectKeyRequestBuilder
 ): Promise<void> {
   const {
@@ -63,7 +62,7 @@ export async function deleteCustomerCreateSubscription(
     .subscriptions()
     .get({
       queryArgs: {
-        where: `key = "${CUSTOMER_CREATE_SUBSCRIPTION_KEY}"`,
+        where: `key = "${SUBSCRIPTION_KEY}"`,
       },
     })
     .execute();
@@ -73,7 +72,7 @@ export async function deleteCustomerCreateSubscription(
 
     await apiRoot
       .subscriptions()
-      .withKey({ key: CUSTOMER_CREATE_SUBSCRIPTION_KEY })
+      .withKey({ key: SUBSCRIPTION_KEY })
       .delete({
         queryArgs: {
           version: subscription.version,
diff --git a/application-templates/typescript/event/src/connector/post-deploy.ts b/application-templates/typescript/event/src/connector/post-deploy.ts
index 3270ee4..3cf33f4 100644
--- a/application-templates/typescript/event/src/connector/post-deploy.ts
+++ b/application-templates/typescript/event/src/connector/post-deploy.ts
@@ -4,8 +4,8 @@ dotenv.config();
 import { createApiRoot } from '../client/create.client';
 import { assertError, assertString } from '../utils/assert.utils';
 import {
-  createAzureServiceBusCustomerCreateSubscription,
-  createGcpPubSubCustomerCreateSubscription,
+  createAzureServiceBusSubscription,
+  createGcpPubSubSubscription,
 } from './actions';
 
 const CONNECT_GCP_TOPIC_NAME_KEY = 'CONNECT_GCP_TOPIC_NAME';
@@ -24,10 +24,7 @@ async function postDeploy(properties: Map<string, unknown>): Promise<void> {
         CONNECT_AZURE_CONNECTION_STRING_KEY
       );
       assertString(connectionString, CONNECT_AZURE_CONNECTION_STRING_KEY);
-      await createAzureServiceBusCustomerCreateSubscription(
-        apiRoot,
-        connectionString
-      );
+      await createAzureServiceBusSubscription(apiRoot, connectionString);
       break;
     }
     default: {
@@ -35,11 +32,7 @@ async function postDeploy(properties: Map<string, unknown>): Promise<void> {
       const projectId = properties.get(CONNECT_GCP_PROJECT_ID_KEY);
       assertString(topicName, CONNECT_GCP_TOPIC_NAME_KEY);
       assertString(projectId, CONNECT_GCP_PROJECT_ID_KEY);
-      await createGcpPubSubCustomerCreateSubscription(
-        apiRoot,
-        topicName,
-        projectId
-      );
+      await createGcpPubSubSubscription(apiRoot, topicName, projectId);
     }
   }
 }
diff --git a/application-templates/typescript/event/src/connector/pre-undeploy.ts b/application-templates/typescript/event/src/connector/pre-undeploy.ts
index 3b7e721..4a4d852 100644
--- a/application-templates/typescript/event/src/connector/pre-undeploy.ts
+++ b/application-templates/typescript/event/src/connector/pre-undeploy.ts
@@ -3,11 +3,11 @@ dotenv.config();
 
 import { createApiRoot } from '../client/create.client';
 import { assertError } from '../utils/assert.utils';
-import { deleteCustomerCreateSubscription } from './actions';
+import { deleteSubscription } from './actions';
 
 async function preUndeploy(): Promise<void> {
   const apiRoot = createApiRoot();
-  await deleteCustomerCreateSubscription(apiRoot);
+  await deleteSubscription(apiRoot);
 }
 
 async function run(): Promise<void> {

From 8b3e2e36e5e943099f58fe311c04d694f13f1689 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Mon, 4 Nov 2024 10:38:24 +0100
Subject: [PATCH 06/14] chore: fixed typo

---
 .../typescript/event/tests/integration/event.spec.ts            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/application-templates/typescript/event/tests/integration/event.spec.ts b/application-templates/typescript/event/tests/integration/event.spec.ts
index c7cb285..0c07cb9 100644
--- a/application-templates/typescript/event/tests/integration/event.spec.ts
+++ b/application-templates/typescript/event/tests/integration/event.spec.ts
@@ -67,7 +67,7 @@ describe('Testing Event Controller', () => {
   });
 
   /*
-   * This Test really want to call the commercetools APIs. To do so,
+   * This Test really calls the commercetools APIs. To do so,
    * - remove the mocking code in line 7-12
    * - configure a "real" customerId
    * - remove the skip below

From 145b8b94b37e84f2bb97c8b2f9cdb0deb2380813 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 08:28:41 +0100
Subject: [PATCH 07/14] fix: ignore .env.local and other unnecessary files

---
 .gitignore                                  | 3 +++
 application-templates/typescript/.gitignore | 8 +++++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 8ee12b2..4de60b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,6 +38,9 @@ application-templates/starter-typescript/job/.env.*
 application-templates/typescript/event/.env
 application-templates/typescript/event/.env.*
 !application-templates/typescript/event/.env.example
+application-templates/typescript/service/.env
+application-templates/typescript/service/.env.*
+!application-templates/typescript/service/.env.example
 
 #IDE
 .idea
diff --git a/application-templates/typescript/.gitignore b/application-templates/typescript/.gitignore
index 9b9b5e4..5e9fc05 100644
--- a/application-templates/typescript/.gitignore
+++ b/application-templates/typescript/.gitignore
@@ -3,10 +3,12 @@ coverage
 .terraform
 *.tfstate*
 *.tfvars
-
+.yarn
 .DS_Store
 .vscode
 .idea
 build/
-.env
-public/
\ No newline at end of file
+!.env
+.env.local
+public/
+.connect
\ No newline at end of file

From aceb6bcc2f36c4ade4c065bcc197fe9331196a9a Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 08:29:21 +0100
Subject: [PATCH 08/14] fix: add default implementation for order and payment
 as template code

---
 .../src/controllers/order.controller.ts       | 40 +++++++++++++++++
 .../src/controllers/orders.controller.ts      |  3 --
 .../src/controllers/payment.controller.ts     | 43 +++++++++++++++++++
 .../src/controllers/payments.controller.ts    |  3 --
 4 files changed, 83 insertions(+), 6 deletions(-)
 create mode 100644 application-templates/typescript/service/src/controllers/order.controller.ts
 delete mode 100644 application-templates/typescript/service/src/controllers/orders.controller.ts
 create mode 100644 application-templates/typescript/service/src/controllers/payment.controller.ts
 delete mode 100644 application-templates/typescript/service/src/controllers/payments.controller.ts

diff --git a/application-templates/typescript/service/src/controllers/order.controller.ts b/application-templates/typescript/service/src/controllers/order.controller.ts
new file mode 100644
index 0000000..570b064
--- /dev/null
+++ b/application-templates/typescript/service/src/controllers/order.controller.ts
@@ -0,0 +1,40 @@
+import { Order } from '@commercetools/platform-sdk';
+import { logger } from '../utils/logger.utils';
+import { ExtensionAction } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/extension';
+import CustomError from '../errors/custom.error';
+import { ControllerResult } from '../types/controller.types';
+
+/**
+ * Handle the create action
+ */
+const create = (item: Order): ControllerResult => {
+  logger.info(`Running API Extension for Order Update (ID: ${item.id})`);
+  return;
+};
+
+/**
+ * Handle the update action
+ */
+const update = (item: Order): ControllerResult => {
+  logger.info(`Running API Extension for Order Update (ID: ${item.id})`);
+  return;
+};
+
+/**
+ * Handle the controller according to the action
+ */
+export const orderController = (action: ExtensionAction, resource: Order) => {
+  switch (action) {
+    case 'Create':
+      return create(resource);
+    case 'Update':
+      return update(resource);
+
+    default:
+      logger.error(` Action ('${action}') not recognized.`);
+      throw new CustomError(
+        500,
+        `Internal Server Error - Resource not recognized. Allowed values are 'Create' or 'Update'.`
+      );
+  }
+};
diff --git a/application-templates/typescript/service/src/controllers/orders.controller.ts b/application-templates/typescript/service/src/controllers/orders.controller.ts
deleted file mode 100644
index 5c47835..0000000
--- a/application-templates/typescript/service/src/controllers/orders.controller.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-//const get = () => {};
-
-//const post = () => {};
diff --git a/application-templates/typescript/service/src/controllers/payment.controller.ts b/application-templates/typescript/service/src/controllers/payment.controller.ts
new file mode 100644
index 0000000..0d37350
--- /dev/null
+++ b/application-templates/typescript/service/src/controllers/payment.controller.ts
@@ -0,0 +1,43 @@
+import { Payment } from '@commercetools/platform-sdk';
+import { logger } from '../utils/logger.utils';
+import { ExtensionAction } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/extension';
+import CustomError from '../errors/custom.error';
+import { ControllerResult } from '../types/controller.types';
+
+/**
+ * Handle the create action
+ */
+const create = (item: Payment): ControllerResult => {
+  logger.info(`Running API Extension for Payment Update (ID: ${item.id})`);
+  return;
+};
+
+/**
+ * Handle the update action
+ */
+const update = (item: Payment): ControllerResult => {
+  logger.info(`Running API Extension for Payment Update (ID: ${item.id})`);
+  return;
+};
+
+/**
+ * Handle the controller according to the action
+ */
+export const paymentController = (
+  action: ExtensionAction,
+  resource: Payment
+) => {
+  switch (action) {
+    case 'Create':
+      return create(resource);
+    case 'Update':
+      return update(resource);
+
+    default:
+      logger.error(` Action ('${action}') not recognized.`);
+      throw new CustomError(
+        500,
+        `Internal Server Error - Resource not recognized. Allowed values are 'Create' or 'Update'.`
+      );
+  }
+};
diff --git a/application-templates/typescript/service/src/controllers/payments.controller.ts b/application-templates/typescript/service/src/controllers/payments.controller.ts
deleted file mode 100644
index f408097..0000000
--- a/application-templates/typescript/service/src/controllers/payments.controller.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-// const get = () => {};
-
-// const post = () => {};

From db9baacf16ee5b97f1e24dc7f905ed111d9a4165 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 08:31:55 +0100
Subject: [PATCH 09/14] fix: the api extension to be created is most likely not
 only for cart creation, therefore making it more anonymous from a naming
 perspective

---
 .../service/src/connector/actions.ts          | 74 +++----------------
 .../service/src/connector/post-deploy.ts      |  8 +-
 .../service/src/connector/pre-undeploy.ts     |  4 +-
 3 files changed, 15 insertions(+), 71 deletions(-)

diff --git a/application-templates/typescript/service/src/connector/actions.ts b/application-templates/typescript/service/src/connector/actions.ts
index 356dd25..7668ca5 100644
--- a/application-templates/typescript/service/src/connector/actions.ts
+++ b/application-templates/typescript/service/src/connector/actions.ts
@@ -1,9 +1,8 @@
 import { ByProjectKeyRequestBuilder } from '@commercetools/platform-sdk/dist/declarations/src/generated/client/by-project-key-request-builder';
 
-const CART_UPDATE_EXTENSION_KEY = 'myconnector-cartUpdateExtension';
-const CART_DISCOUNT_TYPE_KEY = 'myconnector-cartDiscountType';
+const EXTENSION_KEY = 'myconnector-cartUpdateExtension';
 
-export async function createCartUpdateExtension(
+export async function createExtension(
   apiRoot: ByProjectKeyRequestBuilder,
   applicationUrl: string
 ): Promise<void> {
@@ -13,7 +12,7 @@ export async function createCartUpdateExtension(
     .extensions()
     .get({
       queryArgs: {
-        where: `key = "${CART_UPDATE_EXTENSION_KEY}"`,
+        where: `key = "${EXTENSION_KEY}"`,
       },
     })
     .execute();
@@ -23,7 +22,7 @@ export async function createCartUpdateExtension(
 
     await apiRoot
       .extensions()
-      .withKey({ key: CART_UPDATE_EXTENSION_KEY })
+      .withKey({ key: EXTENSION_KEY })
       .delete({
         queryArgs: {
           version: extension.version,
@@ -32,11 +31,14 @@ export async function createCartUpdateExtension(
       .execute();
   }
 
+  // Have a look here to figure out what kind of triggers are available:
+  // https://docs.commercetools.com/api/projects/api-extensions#ctp:api:type:ExtensionTrigger
+
   await apiRoot
     .extensions()
     .post({
       body: {
-        key: CART_UPDATE_EXTENSION_KEY,
+        key: EXTENSION_KEY,
         destination: {
           type: 'HTTP',
           url: applicationUrl,
@@ -52,7 +54,7 @@ export async function createCartUpdateExtension(
     .execute();
 }
 
-export async function deleteCartUpdateExtension(
+export async function deleteExtension(
   apiRoot: ByProjectKeyRequestBuilder
 ): Promise<void> {
   const {
@@ -61,7 +63,7 @@ export async function deleteCartUpdateExtension(
     .extensions()
     .get({
       queryArgs: {
-        where: `key = "${CART_UPDATE_EXTENSION_KEY}"`,
+        where: `key = "${EXTENSION_KEY}"`,
       },
     })
     .execute();
@@ -71,7 +73,7 @@ export async function deleteCartUpdateExtension(
 
     await apiRoot
       .extensions()
-      .withKey({ key: CART_UPDATE_EXTENSION_KEY })
+      .withKey({ key: EXTENSION_KEY })
       .delete({
         queryArgs: {
           version: extension.version,
@@ -80,57 +82,3 @@ export async function deleteCartUpdateExtension(
       .execute();
   }
 }
-
-export async function createCustomCartDiscountType(
-  apiRoot: ByProjectKeyRequestBuilder
-): Promise<void> {
-  const {
-    body: { results: types },
-  } = await apiRoot
-    .types()
-    .get({
-      queryArgs: {
-        where: `key = "${CART_DISCOUNT_TYPE_KEY}"`,
-      },
-    })
-    .execute();
-
-  if (types.length > 0) {
-    const type = types[0];
-
-    await apiRoot
-      .types()
-      .withKey({ key: CART_DISCOUNT_TYPE_KEY })
-      .delete({
-        queryArgs: {
-          version: type.version,
-        },
-      })
-      .execute();
-  }
-
-  await apiRoot
-    .types()
-    .post({
-      body: {
-        key: CART_DISCOUNT_TYPE_KEY,
-        name: {
-          en: 'Custom type to store a string',
-        },
-        resourceTypeIds: ['cart-discount'],
-        fieldDefinitions: [
-          {
-            type: {
-              name: 'String',
-            },
-            name: 'customCartField',
-            label: {
-              en: 'Custom cart field',
-            },
-            required: false,
-          },
-        ],
-      },
-    })
-    .execute();
-}
diff --git a/application-templates/typescript/service/src/connector/post-deploy.ts b/application-templates/typescript/service/src/connector/post-deploy.ts
index c4da616..6b50824 100644
--- a/application-templates/typescript/service/src/connector/post-deploy.ts
+++ b/application-templates/typescript/service/src/connector/post-deploy.ts
@@ -3,10 +3,7 @@ dotenv.config();
 
 import { createApiRoot } from '../client/create.client';
 import { assertError, assertString } from '../utils/assert.utils';
-import {
-  createCustomCartDiscountType,
-  createCartUpdateExtension,
-} from './actions';
+import { createExtension } from './actions';
 
 const CONNECT_APPLICATION_URL_KEY = 'CONNECT_SERVICE_URL';
 
@@ -16,8 +13,7 @@ async function postDeploy(properties: Map<string, unknown>): Promise<void> {
   assertString(applicationUrl, CONNECT_APPLICATION_URL_KEY);
 
   const apiRoot = createApiRoot();
-  await createCartUpdateExtension(apiRoot, applicationUrl);
-  await createCustomCartDiscountType(apiRoot);
+  await createExtension(apiRoot, applicationUrl);
 }
 
 async function run(): Promise<void> {
diff --git a/application-templates/typescript/service/src/connector/pre-undeploy.ts b/application-templates/typescript/service/src/connector/pre-undeploy.ts
index bf41011..a086f65 100644
--- a/application-templates/typescript/service/src/connector/pre-undeploy.ts
+++ b/application-templates/typescript/service/src/connector/pre-undeploy.ts
@@ -3,11 +3,11 @@ dotenv.config();
 
 import { createApiRoot } from '../client/create.client';
 import { assertError } from '../utils/assert.utils';
-import { deleteCartUpdateExtension } from './actions';
+import { deleteExtension } from './actions';
 
 async function preUndeploy(): Promise<void> {
   const apiRoot = createApiRoot();
-  await deleteCartUpdateExtension(apiRoot);
+  await deleteExtension(apiRoot);
 }
 
 async function run(): Promise<void> {

From 6431e458f8045317ccba9f35a45b588569d7e70c Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 08:35:47 +0100
Subject: [PATCH 10/14] fix: supertest is being used and should be installed

---
 .../typescript/service/package.json           |   2 +
 package-lock.json                             | 326 ++++++++++++++++++
 2 files changed, 328 insertions(+)

diff --git a/application-templates/typescript/service/package.json b/application-templates/typescript/service/package.json
index 04e7d10..6f83a20 100644
--- a/application-templates/typescript/service/package.json
+++ b/application-templates/typescript/service/package.json
@@ -23,6 +23,7 @@
     "@types/express": "^4.17.14",
     "@types/jest": "^29.0.3",
     "@types/node": "^18.7.18",
+    "@types/supertest": "^6.0.2",
     "@types/validator": "^13.7.10",
     "@typescript-eslint/eslint-plugin": "^5.46.0",
     "@typescript-eslint/parser": "^5.46.0",
@@ -32,6 +33,7 @@
     "nodemon": "^3.0.1",
     "prettier": "^3.0.1",
     "rimraf": "^5.0.1",
+    "supertest": "^7.0.0",
     "ts-jest": "^29.1.1",
     "typescript": "^5.1.6"
   },
diff --git a/package-lock.json b/package-lock.json
index 10a18e4..750f247 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,6 +18,7 @@
         "@tsconfig/node16": "^1.0.3",
         "@tsconfig/recommended": "^1.0.3",
         "@types/node": "^18.7.16",
+        "@types/supertest": "^6.0.2",
         "@typescript-eslint/eslint-plugin": "^5.36.2",
         "@typescript-eslint/parser": "^5.36.2",
         "eslint": "^8.46.0",
@@ -25,6 +26,7 @@
         "jest": "^29.6.2",
         "prettier": "^3.0.1",
         "rimraf": "^5.0.1",
+        "supertest": "^7.0.0",
         "typescript": "^5.1.6"
       },
       "engines": {
@@ -245,6 +247,7 @@
         "@types/express": "^4.17.14",
         "@types/jest": "^29.0.3",
         "@types/node": "^18.7.18",
+        "@types/supertest": "^6.0.2",
         "@types/validator": "^13.7.10",
         "@typescript-eslint/eslint-plugin": "^5.46.0",
         "@typescript-eslint/parser": "^5.46.0",
@@ -254,6 +257,7 @@
         "nodemon": "^3.0.1",
         "prettier": "^3.0.1",
         "rimraf": "^5.0.1",
+        "supertest": "^7.0.0",
         "ts-jest": "^29.1.1",
         "typescript": "^5.1.6"
       }
@@ -4902,6 +4906,12 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/cookiejar": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/@types/cookiejar/-/cookiejar-2.1.5.tgz",
+      "integrity": "sha512-he+DHOWReW0nghN24E1WUqM0efK4kI9oTqDm6XmK8ZPe2djZ90BSNdGnIyCLzCPw7/pogPlGbzI2wHGGmi4O/Q==",
+      "dev": true
+    },
     "node_modules/@types/estree": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.5.tgz",
@@ -4987,6 +4997,12 @@
       "integrity": "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==",
       "dev": true
     },
+    "node_modules/@types/methods": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/@types/methods/-/methods-1.1.4.tgz",
+      "integrity": "sha512-ymXWVrDiCxTBE3+RIrrP533E70eA+9qu7zdWoHuOmGujkYtzf4HQF96b8nwHLqhuf4ykX61IGRIB38CC6/sImQ==",
+      "dev": true
+    },
     "node_modules/@types/mime": {
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/@types/mime/-/mime-1.3.5.tgz",
@@ -5058,6 +5074,28 @@
       "integrity": "sha512-9aEbYZ3TbYMznPdcdr3SmIrLXwC/AKZXQeCf9Pgao5CKb8CyHuEX5jzWPTkvregvhRJHcpRO6BFoGW9ycaOkYw==",
       "dev": true
     },
+    "node_modules/@types/superagent": {
+      "version": "8.1.9",
+      "resolved": "https://registry.npmjs.org/@types/superagent/-/superagent-8.1.9.tgz",
+      "integrity": "sha512-pTVjI73witn+9ILmoJdajHGW2jkSaOzhiFYF1Rd3EQ94kymLqB9PjD9ISg7WaALC7+dCHT0FGe9T2LktLq/3GQ==",
+      "dev": true,
+      "dependencies": {
+        "@types/cookiejar": "^2.1.5",
+        "@types/methods": "^1.1.4",
+        "@types/node": "*",
+        "form-data": "^4.0.0"
+      }
+    },
+    "node_modules/@types/supertest": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/@types/supertest/-/supertest-6.0.2.tgz",
+      "integrity": "sha512-137ypx2lk/wTQbW6An6safu9hXmajAifU/s7szAHLN/FeIm5w7yR0Wkl9fdJMRSHwOn4HLAI0DaB2TOORuhPDg==",
+      "dev": true,
+      "dependencies": {
+        "@types/methods": "^1.1.4",
+        "@types/superagent": "^8.1.0"
+      }
+    },
     "node_modules/@types/triple-beam": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/@types/triple-beam/-/triple-beam-1.3.2.tgz",
@@ -5459,6 +5497,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/asap": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
+      "integrity": "sha512-BSHWgDSAiKs50o2Re8ppvp3seVHXSRM44cdSsT9FfNEUUZLOGWVCsiWaRPWM1Znn+mqZ1OfVZ3z3DWEzSp7hRA==",
+      "dev": true
+    },
     "node_modules/assets": {
       "resolved": "application-templates/javascript/assets",
       "link": true
@@ -5472,6 +5516,12 @@
       "resolved": "https://registry.npmjs.org/async/-/async-3.2.5.tgz",
       "integrity": "sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg=="
     },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "dev": true
+    },
     "node_modules/babel-jest": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/babel-jest/-/babel-jest-29.7.0.tgz",
@@ -6215,6 +6265,18 @@
         "text-hex": "1.0.x"
       }
     },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "dev": true,
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/compare-func": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/compare-func/-/compare-func-2.0.0.tgz",
@@ -6225,6 +6287,15 @@
         "dot-prop": "^5.1.0"
       }
     },
+    "node_modules/component-emitter": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.1.tgz",
+      "integrity": "sha512-T0+barUSQRTUQASh8bx02dl+DhF54GtIDY13Y3m9oWTklKbb3Wv974meRpeZ3lp1JpLVECWWNHC4vaG2XHXouQ==",
+      "dev": true,
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -6423,6 +6494,12 @@
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
       "integrity": "sha512-QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ=="
     },
+    "node_modules/cookiejar": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.4.tgz",
+      "integrity": "sha512-LDx6oHrK+PhzLKJU9j5S7/Y3jM/mUHvD/DeI1WQmJn652iPC5Y4TBzC9l+5OMOXlyTTA+SmVUPm0HQUwpD5Jqw==",
+      "dev": true
+    },
     "node_modules/core-js-compat": {
       "version": "3.37.1",
       "resolved": "https://registry.npmjs.org/core-js-compat/-/core-js-compat-3.37.1.tgz",
@@ -6740,6 +6817,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -6774,6 +6860,16 @@
         "node": ">=8"
       }
     },
+    "node_modules/dezalgo": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/dezalgo/-/dezalgo-1.0.4.tgz",
+      "integrity": "sha512-rXSP0bf+5n0Qonsb+SVVfNfIsimO4HEtmnIpPHY8Q1UCzKlQrDMfdobr8nJOOsRgWCyMRqeSBQzmWUMq7zvVig==",
+      "dev": true,
+      "dependencies": {
+        "asap": "^2.0.0",
+        "wrappy": "1"
+      }
+    },
     "node_modules/diff": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -7723,6 +7819,34 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
+    "node_modules/form-data": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.1.tgz",
+      "integrity": "sha512-tzN8e4TX8+kkxGPK8D5u0FNmjPUjw3lwC9lSLxxoB/+GtsJG91CO8bSWy73APlgAZzZbXEYZJuxjkHH2w+Ezhw==",
+      "dev": true,
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/formidable": {
+      "version": "3.5.2",
+      "resolved": "https://registry.npmjs.org/formidable/-/formidable-3.5.2.tgz",
+      "integrity": "sha512-Jqc1btCy3QzRbJaICGwKcBfGWuLADRerLzDqi2NwSt/UkXLsHJw2TVResiaoBufHVHy9aSgClOHCeJsSsFLTbg==",
+      "dev": true,
+      "dependencies": {
+        "dezalgo": "^1.0.4",
+        "hexoid": "^2.0.0",
+        "once": "^1.4.0"
+      },
+      "funding": {
+        "url": "https://ko-fi.com/tunnckoCore/commissions"
+      }
+    },
     "node_modules/forwarded": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -8017,6 +8141,15 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/hexoid": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/hexoid/-/hexoid-2.0.0.tgz",
+      "integrity": "sha512-qlspKUK7IlSQv2o+5I7yhUd7TxlOG2Vr5LTa3ve2XSNVKAL/n/u/7KLvKmFNimomDIKvZFXWHv0T12mv7rT8Aw==",
+      "dev": true,
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/hosted-git-info": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-4.1.0.tgz",
@@ -12653,6 +12786,51 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/superagent": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/superagent/-/superagent-9.0.2.tgz",
+      "integrity": "sha512-xuW7dzkUpcJq7QnhOsnNUgtYp3xRwpt2F7abdRYIpCsAt0hhUqia0EdxyXZQQpNmGtsCzYHryaKSV3q3GJnq7w==",
+      "dev": true,
+      "dependencies": {
+        "component-emitter": "^1.3.0",
+        "cookiejar": "^2.1.4",
+        "debug": "^4.3.4",
+        "fast-safe-stringify": "^2.1.1",
+        "form-data": "^4.0.0",
+        "formidable": "^3.5.1",
+        "methods": "^1.1.2",
+        "mime": "2.6.0",
+        "qs": "^6.11.0"
+      },
+      "engines": {
+        "node": ">=14.18.0"
+      }
+    },
+    "node_modules/superagent/node_modules/mime": {
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-2.6.0.tgz",
+      "integrity": "sha512-USPkMeET31rOMiarsBNIHZKLGgvKc/LrjofAnBlOttf5ajRvqiRA8QsenbcooctK6d6Ts6aqZXBA+XbkKthiQg==",
+      "dev": true,
+      "bin": {
+        "mime": "cli.js"
+      },
+      "engines": {
+        "node": ">=4.0.0"
+      }
+    },
+    "node_modules/supertest": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/supertest/-/supertest-7.0.0.tgz",
+      "integrity": "sha512-qlsr7fIC0lSddmA3tzojvzubYxvlGtzumcdHgPwbFWMISQwL22MhM2Y3LNt+6w9Yyx7559VW5ab70dgphm8qQA==",
+      "dev": true,
+      "dependencies": {
+        "methods": "^1.1.2",
+        "superagent": "^9.0.1"
+      },
+      "engines": {
+        "node": ">=14.18.0"
+      }
+    },
     "node_modules/supports-color": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
@@ -16897,6 +17075,12 @@
         "@types/node": "*"
       }
     },
+    "@types/cookiejar": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/@types/cookiejar/-/cookiejar-2.1.5.tgz",
+      "integrity": "sha512-he+DHOWReW0nghN24E1WUqM0efK4kI9oTqDm6XmK8ZPe2djZ90BSNdGnIyCLzCPw7/pogPlGbzI2wHGGmi4O/Q==",
+      "dev": true
+    },
     "@types/estree": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.5.tgz",
@@ -16982,6 +17166,12 @@
       "integrity": "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==",
       "dev": true
     },
+    "@types/methods": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/@types/methods/-/methods-1.1.4.tgz",
+      "integrity": "sha512-ymXWVrDiCxTBE3+RIrrP533E70eA+9qu7zdWoHuOmGujkYtzf4HQF96b8nwHLqhuf4ykX61IGRIB38CC6/sImQ==",
+      "dev": true
+    },
     "@types/mime": {
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/@types/mime/-/mime-1.3.5.tgz",
@@ -17053,6 +17243,28 @@
       "integrity": "sha512-9aEbYZ3TbYMznPdcdr3SmIrLXwC/AKZXQeCf9Pgao5CKb8CyHuEX5jzWPTkvregvhRJHcpRO6BFoGW9ycaOkYw==",
       "dev": true
     },
+    "@types/superagent": {
+      "version": "8.1.9",
+      "resolved": "https://registry.npmjs.org/@types/superagent/-/superagent-8.1.9.tgz",
+      "integrity": "sha512-pTVjI73witn+9ILmoJdajHGW2jkSaOzhiFYF1Rd3EQ94kymLqB9PjD9ISg7WaALC7+dCHT0FGe9T2LktLq/3GQ==",
+      "dev": true,
+      "requires": {
+        "@types/cookiejar": "^2.1.5",
+        "@types/methods": "^1.1.4",
+        "@types/node": "*",
+        "form-data": "^4.0.0"
+      }
+    },
+    "@types/supertest": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/@types/supertest/-/supertest-6.0.2.tgz",
+      "integrity": "sha512-137ypx2lk/wTQbW6An6safu9hXmajAifU/s7szAHLN/FeIm5w7yR0Wkl9fdJMRSHwOn4HLAI0DaB2TOORuhPDg==",
+      "dev": true,
+      "requires": {
+        "@types/methods": "^1.1.4",
+        "@types/superagent": "^8.1.0"
+      }
+    },
     "@types/triple-beam": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/@types/triple-beam/-/triple-beam-1.3.2.tgz",
@@ -17316,6 +17528,12 @@
       "integrity": "sha512-3CYzex9M9FGQjCGMGyi6/31c8GJbgb0qGyrx5HWxPd0aCwh4cB2YjMb2Xf9UuoogrMrlO9cTqnB5rI5GHZTcUA==",
       "dev": true
     },
+    "asap": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
+      "integrity": "sha512-BSHWgDSAiKs50o2Re8ppvp3seVHXSRM44cdSsT9FfNEUUZLOGWVCsiWaRPWM1Znn+mqZ1OfVZ3z3DWEzSp7hRA==",
+      "dev": true
+    },
     "assets": {
       "version": "file:application-templates/javascript/assets",
       "requires": {
@@ -17334,6 +17552,12 @@
       "resolved": "https://registry.npmjs.org/async/-/async-3.2.5.tgz",
       "integrity": "sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg=="
     },
+    "asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "dev": true
+    },
     "babel-jest": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/babel-jest/-/babel-jest-29.7.0.tgz",
@@ -17861,6 +18085,15 @@
         "text-hex": "1.0.x"
       }
     },
+    "combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "dev": true,
+      "requires": {
+        "delayed-stream": "~1.0.0"
+      }
+    },
     "compare-func": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/compare-func/-/compare-func-2.0.0.tgz",
@@ -17871,6 +18104,12 @@
         "dot-prop": "^5.1.0"
       }
     },
+    "component-emitter": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.1.tgz",
+      "integrity": "sha512-T0+barUSQRTUQASh8bx02dl+DhF54GtIDY13Y3m9oWTklKbb3Wv974meRpeZ3lp1JpLVECWWNHC4vaG2XHXouQ==",
+      "dev": true
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -18015,6 +18254,12 @@
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
       "integrity": "sha512-QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ=="
     },
+    "cookiejar": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.4.tgz",
+      "integrity": "sha512-LDx6oHrK+PhzLKJU9j5S7/Y3jM/mUHvD/DeI1WQmJn652iPC5Y4TBzC9l+5OMOXlyTTA+SmVUPm0HQUwpD5Jqw==",
+      "dev": true
+    },
     "core-js-compat": {
       "version": "3.37.1",
       "resolved": "https://registry.npmjs.org/core-js-compat/-/core-js-compat-3.37.1.tgz",
@@ -18228,6 +18473,12 @@
         "gopd": "^1.0.1"
       }
     },
+    "delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "dev": true
+    },
     "depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -18249,6 +18500,16 @@
       "integrity": "sha512-TLz+x/vEXm/Y7P7wn1EJFNLxYpUD4TgMosxY6fAVJUnJMbupHBOncxyWUG9OpTaH9EBD7uFI5LfEgmMOc54DsA==",
       "dev": true
     },
+    "dezalgo": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/dezalgo/-/dezalgo-1.0.4.tgz",
+      "integrity": "sha512-rXSP0bf+5n0Qonsb+SVVfNfIsimO4HEtmnIpPHY8Q1UCzKlQrDMfdobr8nJOOsRgWCyMRqeSBQzmWUMq7zvVig==",
+      "dev": true,
+      "requires": {
+        "asap": "^2.0.0",
+        "wrappy": "1"
+      }
+    },
     "diff": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
@@ -19042,6 +19303,28 @@
         }
       }
     },
+    "form-data": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.1.tgz",
+      "integrity": "sha512-tzN8e4TX8+kkxGPK8D5u0FNmjPUjw3lwC9lSLxxoB/+GtsJG91CO8bSWy73APlgAZzZbXEYZJuxjkHH2w+Ezhw==",
+      "dev": true,
+      "requires": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      }
+    },
+    "formidable": {
+      "version": "3.5.2",
+      "resolved": "https://registry.npmjs.org/formidable/-/formidable-3.5.2.tgz",
+      "integrity": "sha512-Jqc1btCy3QzRbJaICGwKcBfGWuLADRerLzDqi2NwSt/UkXLsHJw2TVResiaoBufHVHy9aSgClOHCeJsSsFLTbg==",
+      "dev": true,
+      "requires": {
+        "dezalgo": "^1.0.4",
+        "hexoid": "^2.0.0",
+        "once": "^1.4.0"
+      }
+    },
     "forwarded": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -19238,6 +19521,12 @@
         "function-bind": "^1.1.2"
       }
     },
+    "hexoid": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/hexoid/-/hexoid-2.0.0.tgz",
+      "integrity": "sha512-qlspKUK7IlSQv2o+5I7yhUd7TxlOG2Vr5LTa3ve2XSNVKAL/n/u/7KLvKmFNimomDIKvZFXWHv0T12mv7rT8Aw==",
+      "dev": true
+    },
     "hosted-git-info": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-4.1.0.tgz",
@@ -22346,6 +22635,7 @@
         "@types/express": "^4.17.14",
         "@types/jest": "^29.0.3",
         "@types/node": "^18.7.18",
+        "@types/supertest": "^6.0.2",
         "@types/validator": "^13.7.10",
         "@typescript-eslint/eslint-plugin": "^5.46.0",
         "@typescript-eslint/parser": "^5.46.0",
@@ -22358,6 +22648,7 @@
         "nodemon": "^3.0.1",
         "prettier": "^3.0.1",
         "rimraf": "^5.0.1",
+        "supertest": "^7.0.0",
         "ts-jest": "^29.1.1",
         "typescript": "^5.1.6",
         "validator": "^13.11.0"
@@ -22717,6 +23008,41 @@
       "integrity": "sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==",
       "dev": true
     },
+    "superagent": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/superagent/-/superagent-9.0.2.tgz",
+      "integrity": "sha512-xuW7dzkUpcJq7QnhOsnNUgtYp3xRwpt2F7abdRYIpCsAt0hhUqia0EdxyXZQQpNmGtsCzYHryaKSV3q3GJnq7w==",
+      "dev": true,
+      "requires": {
+        "component-emitter": "^1.3.0",
+        "cookiejar": "^2.1.4",
+        "debug": "^4.3.4",
+        "fast-safe-stringify": "^2.1.1",
+        "form-data": "^4.0.0",
+        "formidable": "^3.5.1",
+        "methods": "^1.1.2",
+        "mime": "2.6.0",
+        "qs": "^6.11.0"
+      },
+      "dependencies": {
+        "mime": {
+          "version": "2.6.0",
+          "resolved": "https://registry.npmjs.org/mime/-/mime-2.6.0.tgz",
+          "integrity": "sha512-USPkMeET31rOMiarsBNIHZKLGgvKc/LrjofAnBlOttf5ajRvqiRA8QsenbcooctK6d6Ts6aqZXBA+XbkKthiQg==",
+          "dev": true
+        }
+      }
+    },
+    "supertest": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/supertest/-/supertest-7.0.0.tgz",
+      "integrity": "sha512-qlsr7fIC0lSddmA3tzojvzubYxvlGtzumcdHgPwbFWMISQwL22MhM2Y3LNt+6w9Yyx7559VW5ab70dgphm8qQA==",
+      "dev": true,
+      "requires": {
+        "methods": "^1.1.2",
+        "superagent": "^9.0.1"
+      }
+    },
     "supports-color": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",

From a5c328f12d48e532628ef70f1fc580d4f2106712 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 08:39:10 +0100
Subject: [PATCH 11/14] fix: updated code and tested it

---
 .../src/controllers/cart.controller.ts        | 72 ++++++++-------
 .../src/controllers/service.controller.ts     | 90 ++++++++++++++-----
 .../src/interfaces/resource.interface.ts      |  2 -
 .../service/src/types/controller.types.ts     |  5 ++
 4 files changed, 109 insertions(+), 60 deletions(-)
 delete mode 100644 application-templates/typescript/service/src/interfaces/resource.interface.ts
 create mode 100644 application-templates/typescript/service/src/types/controller.types.ts

diff --git a/application-templates/typescript/service/src/controllers/cart.controller.ts b/application-templates/typescript/service/src/controllers/cart.controller.ts
index d812f1d..fb164c4 100644
--- a/application-templates/typescript/service/src/controllers/cart.controller.ts
+++ b/application-templates/typescript/service/src/controllers/cart.controller.ts
@@ -2,36 +2,34 @@ import { UpdateAction } from '@commercetools/sdk-client-v2';
 
 import { createApiRoot } from '../client/create.client';
 import CustomError from '../errors/custom.error';
-import { Resource } from '../interfaces/resource.interface';
+import { ControllerResult } from '../types/controller.types';
+import { logger } from '../utils/logger.utils';
+import { Cart } from '@commercetools/platform-sdk';
+import { ExtensionAction } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/extension';
 
 /**
  * Handle the create action
- *
- * @param {Resource} resource The resource from the request body
- * @returns {object}
  */
-const create = async (resource: Resource) => {
-  let productId = undefined;
-
+const create = async (cart: Cart): Promise<ControllerResult> => {
   try {
+    logger.info(`Running API Extension for Cart Create (ID: ${cart.id})`);
     const updateActions: Array<UpdateAction> = [];
 
-    // Deserialize the resource to a CartDraft
-    const cartDraft = JSON.parse(JSON.stringify(resource));
-
-    if (cartDraft.obj.lineItems.length !== 0) {
-      productId = cartDraft.obj.lineItems[0].productId;
-    }
-
-    // Fetch the product with the ID
-    if (productId) {
-      await createApiRoot()
-        .products()
-        .withId({ ID: productId })
-        .get()
-        .execute();
+    // This is demo code.
+    // You can do something e.g. with each lineitem
+    // If you need the whole product, load it first...
+    if (cart.lineItems.length !== 0) {
+      const productId = cart.lineItems[0].productId;
+      // Fetch the product with the ID
+      if (productId) {
+        await createApiRoot()
+          .products()
+          .withId({ ID: productId })
+          .get()
+          .execute();
 
-      // Work with the product
+        // Work with the product
+      }
     }
 
     // Create the UpdateActions Object to return it to the client
@@ -42,10 +40,13 @@ const create = async (resource: Resource) => {
 
     updateActions.push(updateAction);
 
+    // API Extensions will perform the update actions that you return. You don't have to do this yourself.
+    // https://docs.commercetools.com/api/projects/api-extensions#updates-requested
     return { statusCode: 200, actions: updateActions };
   } catch (error) {
     // Retry or handle the error
     // Create an error object
+    logger.error(`Internal server error on CartController: ${error}`);
     if (error instanceof Error) {
       throw new CustomError(
         400,
@@ -55,26 +56,29 @@ const create = async (resource: Resource) => {
   }
 };
 
-// Controller for update actions
-// const update = (resource: Resource) => {};
+/**
+ * Handle the update action
+ */
+const update = (cart: Cart): ControllerResult => {
+  logger.info(`Running API Extension for Cart Update (ID: ${cart.id})`);
+  return;
+};
 
 /**
  * Handle the cart controller according to the action
- *
- * @param {string} action The action that comes with the request. Could be `Create` or `Update`
- * @param {Resource} resource The resource from the request body
- * @returns {Promise<object>} The data from the method that handles the action
  */
-export const cartController = async (action: string, resource: Resource) => {
+export const cartController = async (
+  action: ExtensionAction,
+  resource: Cart
+) => {
   switch (action) {
-    case 'Create': {
-      const data = create(resource);
-      return data;
-    }
+    case 'Create':
+      return create(resource);
     case 'Update':
-      break;
+      return update(resource);
 
     default:
+      logger.error(` Action ('${action}') not recognized.`);
       throw new CustomError(
         500,
         `Internal Server Error - Resource not recognized. Allowed values are 'Create' or 'Update'.`
diff --git a/application-templates/typescript/service/src/controllers/service.controller.ts b/application-templates/typescript/service/src/controllers/service.controller.ts
index 22fa31b..a688755 100644
--- a/application-templates/typescript/service/src/controllers/service.controller.ts
+++ b/application-templates/typescript/service/src/controllers/service.controller.ts
@@ -2,6 +2,22 @@ import { Request, Response } from 'express';
 import { apiSuccess } from '../api/success.api';
 import CustomError from '../errors/custom.error';
 import { cartController } from './cart.controller';
+import { logger } from '../utils/logger.utils';
+import { ParamsDictionary } from 'express-serve-static-core';
+import { BusinessUnitReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/business-unit';
+import { CartReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/cart';
+import { CustomerGroupReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/customer-group';
+import { CustomerReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/customer';
+import { OrderReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/order';
+import { PaymentReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/payment';
+import { QuoteReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/quote';
+import { QuoteRequestReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/quote-request';
+import { ShoppingListReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/shopping-list';
+import { StagedQuoteReference } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/staged-quote';
+import { ExtensionAction } from '@commercetools/platform-sdk/dist/declarations/src/generated/models/extension';
+import { ControllerResult } from '../types/controller.types';
+import { paymentController } from './payment.controller';
+import { orderController } from './order.controller';
 
 /**
  * Exposed service endpoint.
@@ -12,47 +28,73 @@ import { cartController } from './cart.controller';
  * @param {Response} response The express response
  * @returns
  */
-export const post = async (request: Request, response: Response) => {
-  // Deserialize the action and resource from the body
+export const post = async (
+  request: Request<
+    ParamsDictionary,
+    any,
+    {
+      action: ExtensionAction;
+      resource?:
+        | BusinessUnitReference
+        | CartReference
+        | CustomerGroupReference
+        | CustomerReference
+        | OrderReference
+        | PaymentReference
+        | QuoteReference
+        | QuoteRequestReference
+        | ShoppingListReference
+        | StagedQuoteReference;
+    }
+  >,
+  response: Response
+) => {
+  // Check request body
+  if (!request.body) {
+    logger.error('Missing request body.');
+    throw new CustomError(400, 'Bad request: No Pub/Sub message was received');
+  }
+
+  // Get the action and resource from the body
   const { action, resource } = request.body;
 
-  if (!action || !resource) {
-    throw new CustomError(400, 'Bad request - Missing body parameters.');
+  if (!action) {
+    logger.error('Missing action in body.');
+    throw new CustomError(400, 'Bad request - Missing action parameter.');
+  }
+  if (!resource) {
+    logger.error('Missing resource in body.');
+    throw new CustomError(400, 'Bad request - Missing resource parameter.');
+  }
+  if (!resource.obj) {
+    logger.error('Missing obj in resource.');
+    throw new CustomError(400, 'Bad request - Missing obj in resource.');
   }
 
   // Identify the type of resource in order to redirect
-  // to the correct controller
+  // to the correct controller;
+  let data: ControllerResult = undefined;
   switch (resource.typeId) {
-    case 'cart':
-      try {
-        const data = await cartController(action, resource);
-
-        if (data && data.statusCode === 200) {
-          apiSuccess(200, data.actions, response);
-          return;
-        }
-
-        throw new CustomError(
-          data ? data.statusCode : 400,
-          JSON.stringify(data)
-        );
-      } catch (error) {
-        if (error instanceof Error) {
-          throw new CustomError(500, error.message);
-        }
-      }
-
+    case 'cart': {
+      data = await cartController(action, resource.obj);
       break;
+    }
     case 'payment':
+      data = paymentController(action, resource.obj);
       break;
 
     case 'order':
+      data = orderController(action, resource.obj);
       break;
 
     default:
+      logger.error(
+        " Resource not recognized. Allowed values are 'cart', 'payment' or 'order'."
+      );
       throw new CustomError(
         500,
         `Internal Server Error - Resource not recognized. Allowed values are 'cart', 'payments' or 'orders'.`
       );
   }
+  apiSuccess(data?.statusCode || 200, data?.actions || [], response);
 };
diff --git a/application-templates/typescript/service/src/interfaces/resource.interface.ts b/application-templates/typescript/service/src/interfaces/resource.interface.ts
deleted file mode 100644
index 0dbda1d..0000000
--- a/application-templates/typescript/service/src/interfaces/resource.interface.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-// eslint-disable-next-line @typescript-eslint/no-empty-interface
-export interface Resource {}
diff --git a/application-templates/typescript/service/src/types/controller.types.ts b/application-templates/typescript/service/src/types/controller.types.ts
new file mode 100644
index 0000000..1de9ae0
--- /dev/null
+++ b/application-templates/typescript/service/src/types/controller.types.ts
@@ -0,0 +1,5 @@
+import { UpdateAction } from '@commercetools/sdk-client-v2';
+
+export type ControllerResult =
+  | { statusCode: number; actions: Array<UpdateAction> }
+  | undefined;

From e13d3554e044deea6aaff33ddd8a003ef550c398 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 08:40:12 +0100
Subject: [PATCH 12/14] fix: introduced tests for service

---
 .../service/tests/integration/cart.spec.ts    | 138 ++++++++++++++++++
 .../service/tests/integration/routes.spec.ts  |   4 +-
 .../typescript/service/tests/setup-tests.ts   |   3 +
 3 files changed, 143 insertions(+), 2 deletions(-)
 create mode 100644 application-templates/typescript/service/tests/integration/cart.spec.ts
 create mode 100644 application-templates/typescript/service/tests/setup-tests.ts

diff --git a/application-templates/typescript/service/tests/integration/cart.spec.ts b/application-templates/typescript/service/tests/integration/cart.spec.ts
new file mode 100644
index 0000000..fb6664c
--- /dev/null
+++ b/application-templates/typescript/service/tests/integration/cart.spec.ts
@@ -0,0 +1,138 @@
+import { describe, expect } from '@jest/globals';
+import { cartController } from '../../src/controllers/cart.controller';
+import { Cart, LineItem } from '@commercetools/platform-sdk';
+import { createApiRoot } from '../../src/client/create.client';
+
+jest.mock('../../src/client/create.client', () => {
+  const mockCreateApiRoot = jest.fn();
+  return {
+    createApiRoot: mockCreateApiRoot,
+  };
+});
+
+const cartId = '643cf548-e12e-4f17-bc7d-c826ecbc35b2';
+const productId = 'fc75c80a-35bb-4414-92b1-d7899534b6f2';
+
+const lineItem: LineItem = {
+  id: '5f409894-85eb-498e-b44e-4f8155d3619a',
+  productId: 'fc75c80a-35bb-4414-92b1-d7899534b6f2',
+  productKey: 'ben-pillow-cover',
+  name: {
+    'en-US': 'Ben Pillow Cover',
+  },
+  productType: {
+    typeId: 'product-type',
+    id: 'fc4487a6-65cb-4433-916a-f669e094e4d8',
+  },
+  productSlug: {
+    'en-US': 'ben-pillow-cover',
+  },
+  variant: {
+    id: 1,
+    sku: 'LBPC-09',
+    key: 'LBPC-09',
+  },
+  price: {
+    id: 'a1ba8634-68cc-4e68-b318-2284f111bb3d',
+    value: {
+      type: 'centPrecision',
+      currencyCode: 'EUR',
+      centAmount: 1039,
+      fractionDigits: 2,
+    },
+    key: 'ben-pillow-cover-LBPC-09-FR-EUR',
+    country: 'FR',
+  },
+  quantity: 1,
+  discountedPricePerQuantity: [],
+  perMethodTaxRate: [],
+  addedAt: '2023-12-18T18:07:29.685Z',
+  lastModifiedAt: '2023-12-18T18:07:29.685Z',
+  state: [],
+  priceMode: 'Platform',
+  lineItemMode: 'Standard',
+  totalPrice: {
+    type: 'centPrecision',
+    currencyCode: 'EUR',
+    centAmount: 1039,
+    fractionDigits: 2,
+  },
+  taxedPricePortions: [],
+};
+
+const cart: Cart = {
+  id: cartId,
+  version: 1,
+  createdAt: '',
+  lastModifiedAt: '',
+  anonymousId: 'e9e59e5b-6e88-414d-9797-d1a08411db12',
+  locale: 'de-DE',
+  lineItems: [lineItem],
+  cartState: 'Active',
+  totalPrice: {
+    type: 'centPrecision',
+    currencyCode: 'EUR',
+    centAmount: 0,
+    fractionDigits: 2,
+  },
+  country: 'DE',
+  shippingMode: 'Single',
+  shipping: [],
+  customLineItems: [],
+  discountCodes: [],
+  directDiscounts: [],
+  inventoryMode: 'ReserveOnOrder',
+  taxMode: 'Platform',
+  taxRoundingMode: 'HalfEven',
+  taxCalculationMode: 'LineItemLevel',
+  refusedGifts: [],
+  origin: 'Customer',
+  itemShippingAddresses: [],
+};
+
+describe('Testing Event Controller', () => {
+  it('Cart Created (Mocked)', async () => {
+    // Define a mock root to be returned
+    const withId = jest.fn().mockReturnValueOnce({
+      get: jest.fn().mockReturnValueOnce({
+        execute: jest.fn().mockReturnValueOnce(lineItem),
+      }),
+    });
+    const mockRoot = {
+      products: jest.fn().mockReturnValueOnce({
+        withId: withId,
+      }),
+    };
+
+    // Set the mock implementation for createApiRoot to return mockRoot
+    (createApiRoot as jest.Mock).mockReturnValueOnce(mockRoot);
+
+    const response = await cartController('Create', {
+      ...cart,
+      lineItems: [lineItem],
+    });
+
+    expect(response?.statusCode).toBe(200);
+    expect(withId).toHaveBeenCalledWith({ ID: productId });
+  });
+  /*
+   * This Test really calls the commercetools APIs. To do so,
+   * - remove the mocking code in line 7-12
+   * - configure a "real" cartId
+   * - remove the skip below
+   *
+   * The code below comes in handy to test during development.
+   */
+  it.skip('Cart Created', async () => {
+    const response = await cartController('Create', cart);
+    expect(response?.statusCode).toBe(200);
+    expect(response?.actions).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({
+          action: 'recalculate',
+          updateProductData: false,
+        }),
+      ])
+    );
+  });
+});
diff --git a/application-templates/typescript/service/tests/integration/routes.spec.ts b/application-templates/typescript/service/tests/integration/routes.spec.ts
index 6faef88..83259c7 100644
--- a/application-templates/typescript/service/tests/integration/routes.spec.ts
+++ b/application-templates/typescript/service/tests/integration/routes.spec.ts
@@ -22,14 +22,14 @@ describe('Testing router', () => {
     });
     expect(response.status).toBe(400);
     expect(response.body).toEqual({
-      message: 'Bad request - Missing body parameters.',
+      message: 'Bad request - Missing action parameter.',
     });
   });
   test('Post empty body', async () => {
     const response = await request(app).post('/service');
     expect(response.status).toBe(400);
     expect(response.body).toEqual({
-      message: 'Bad request - Missing body parameters.',
+      message: 'Bad request - Missing action parameter.',
     });
   });
 });
diff --git a/application-templates/typescript/service/tests/setup-tests.ts b/application-templates/typescript/service/tests/setup-tests.ts
new file mode 100644
index 0000000..b7998b4
--- /dev/null
+++ b/application-templates/typescript/service/tests/setup-tests.ts
@@ -0,0 +1,3 @@
+import { config } from 'dotenv';
+config();
+config({ path: `.env.local`, override: true });

From 51dabfb7eb1b43d98d4bc1ab7779b1772ad30e60 Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 08:50:27 +0100
Subject: [PATCH 13/14] fix: introduced setup.tests file for service

---
 application-templates/typescript/service/jest.config.cjs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/application-templates/typescript/service/jest.config.cjs b/application-templates/typescript/service/jest.config.cjs
index 2fee1a2..2205a9b 100644
--- a/application-templates/typescript/service/jest.config.cjs
+++ b/application-templates/typescript/service/jest.config.cjs
@@ -2,6 +2,8 @@ module.exports = {
   displayName: 'Tests Typescript Application - Service',
   moduleDirectories: ['node_modules', 'src'],
   testMatch: ['**/tests/**/*.[jt]s?(x)', '**/?(*.)+(spec|test).[tj]s?(x)'],
+  testPathIgnorePatterns: ['tests/setup-tests.ts'],
   preset: 'ts-jest',
   testEnvironment: 'node',
+  setupFiles: ['<rootDir>/tests/setup-tests.ts'],
 };

From e6efcae634f7bbf559ce239ec0be6ed20ce063fc Mon Sep 17 00:00:00 2001
From: Philipp Hofmann <philipp.hofmann@commercetools.com>
Date: Wed, 6 Nov 2024 09:21:08 +0100
Subject: [PATCH 14/14] chore: fix mocking for test

---
 .../typescript/event/tests/integration/event.spec.ts     | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/application-templates/typescript/event/tests/integration/event.spec.ts b/application-templates/typescript/event/tests/integration/event.spec.ts
index 0c07cb9..180cd47 100644
--- a/application-templates/typescript/event/tests/integration/event.spec.ts
+++ b/application-templates/typescript/event/tests/integration/event.spec.ts
@@ -3,6 +3,7 @@ import { CustomerCreatedMessage, Customer } from '@commercetools/platform-sdk';
 import request from 'supertest';
 import app from '../../src/app';
 import { createApiRoot } from '../../src/client/create.client';
+import { readConfiguration } from '../../src/utils/config.utils';
 
 jest.mock('../../src/client/create.client', () => {
   const mockCreateApiRoot = jest.fn();
@@ -10,6 +11,7 @@ jest.mock('../../src/client/create.client', () => {
     createApiRoot: mockCreateApiRoot,
   };
 });
+jest.mock('../../src/utils/config.utils');
 
 const customerId = 'd93a8493-1bfd-4e2d-8b46-20a765dd0978';
 
@@ -37,7 +39,10 @@ const orderCreatedMessage: CustomerCreatedMessage = {
 };
 
 describe('Testing Event Controller', () => {
-  it('Customer Created (Mocked)', async () => {
+  beforeEach(() => {
+    (readConfiguration as jest.Mock).mockClear();
+  });
+  test('Customer Created (Mocked)', async () => {
     // Define a mock root to be returned
     const withId = jest.fn().mockReturnValueOnce({
       get: jest.fn().mockReturnValueOnce({
@@ -68,7 +73,7 @@ describe('Testing Event Controller', () => {
 
   /*
    * This Test really calls the commercetools APIs. To do so,
-   * - remove the mocking code in line 7-12
+   * - remove the mocking code in line 8-14
    * - configure a "real" customerId
    * - remove the skip below
    *