feat: Implement get subscription API endpoint

packages/backend/src/serializers/index.js

@@ -12,6 +12,7 @@ import triggerSerializer from './trigger.js';
 import actionSerializer from './action.js';
 import executionSerializer from './execution.js';
 import executionStepSerializer from './execution-step.js';
+import subscriptionSerializer from './subscription.ee.js';
 
 const serializers = {
   User: userSerializer,
@@ -28,6 +29,7 @@ const serializers = {
   Action: actionSerializer,
   Execution: executionSerializer,
   ExecutionStep: executionStepSerializer,
+  Subscription: subscriptionSerializer,
 };
 
 export default serializers;

packages/backend/src/serializers/subscription.ee.js

@@ -0,0 +1,20 @@
+const subscriptinSerializer = (subscription) => {
+  let userData = {
+    id: subscription.id,
+    paddleSubscriptionId: subscription.paddleSubscriptionId,
+    paddlePlanId: subscription.paddlePlanId,
+    updateUrl: subscription.updateUrl,
+    cancelUrl: subscription.cancelUrl,
+    status: subscription.status,
+    nextBillAmount: subscription.nextBillAmount,
+    nextBillDate: subscription.nextBillDate,
+    lastBillDate: subscription.lastBillDate,
+    createdAt: subscription.createdAt.getTime(),
+    updatedAt: subscription.updatedAt.getTime(),
+    cancellationEffectiveDate: subscription.cancellationEffectiveDate,
+  };
+
+  return userData;
+};
+
+export default subscriptinSerializer;

packages/backend/src/serializers/subscription.ee.test.js

@@ -0,0 +1,35 @@
+import { vi, describe, it, expect, beforeEach } from 'vitest';
+import appConfig from '../config/app';
+import { createUser } from '../../test/factories/user';
+import { createSubscription } from '../../test/factories/subscription';
+import subscriptionSerializer from './subscription.ee.js';
+
+describe('subscriptionSerializer', () => {
+  let user, subscription;
+
+  beforeEach(async () => {
+    user = await createUser();
+    subscription = await createSubscription({ userId: user.id });
+  });
+
+  it('should return subscription data', async () => {
+    vi.spyOn(appConfig, 'isCloud', 'get').mockReturnValue(true);
+
+    const expectedPayload = {
+      id: subscription.id,
+      paddleSubscriptionId: subscription.paddleSubscriptionId,
+      paddlePlanId: subscription.paddlePlanId,
+      updateUrl: subscription.updateUrl,
+      cancelUrl: subscription.cancelUrl,
+      status: subscription.status,
+      nextBillAmount: subscription.nextBillAmount,
+      nextBillDate: subscription.nextBillDate,
+      lastBillDate: subscription.lastBillDate,
+      createdAt: subscription.createdAt.getTime(),
+      updatedAt: subscription.updatedAt.getTime(),
+      cancellationEffectiveDate: subscription.cancellationEffectiveDate,
+    };
+
+    expect(subscriptionSerializer(subscription)).toEqual(expectedPayload);
+  });
+});