Introduce interface

apps/api/src/app/subscription/subscription.controller.ts

@@ -5,7 +5,10 @@ import {
   DEFAULT_LANGUAGE_CODE,
   PROPERTY_COUPONS
 } from '@ghostfolio/common/config';
-import { Coupon } from '@ghostfolio/common/interfaces';
+import {
+  Coupon,
+  CreateStripeCheckoutSessionResponse
+} from '@ghostfolio/common/interfaces';
 import type { RequestWithUser } from '@ghostfolio/common/types';
 
 import {
@@ -113,7 +116,7 @@ export class SubscriptionController {
   @UseGuards(AuthGuard('jwt'), HasPermissionGuard)
   public async createCheckoutSession(
     @Body() { couponId, priceId }: { couponId?: string; priceId: string }
-  ) {
+  ): Promise<CreateStripeCheckoutSessionResponse> {
     try {
       return this.subscriptionService.createCheckoutSession({
         couponId,

apps/api/src/app/subscription/subscription.service.ts

@@ -6,7 +6,10 @@ import {
   PROPERTY_STRIPE_CONFIG
 } from '@ghostfolio/common/config';
 import { parseDate } from '@ghostfolio/common/helper';
-import { SubscriptionOffer } from '@ghostfolio/common/interfaces';
+import {
+  CreateStripeCheckoutSessionResponse,
+  SubscriptionOffer
+} from '@ghostfolio/common/interfaces';
 import {
   SubscriptionOfferKey,
   UserWithSettings
@@ -46,7 +49,7 @@ export class SubscriptionService {
     couponId?: string;
     priceId: string;
     user: UserWithSettings;
-  }) {
+  }): Promise<CreateStripeCheckoutSessionResponse> {
     const subscriptionOffers: {
       [offer in SubscriptionOfferKey]: SubscriptionOffer;
     } =

apps/client/src/app/components/user-account-membership/user-account-membership.component.ts

@@ -108,7 +108,10 @@ export class GfUserAccountMembershipComponent implements OnDestroy {
 
   public onCheckout() {
     this.dataService
-      .createCheckoutSession({ couponId: this.couponId, priceId: this.priceId })
+      .createStripeCheckoutSession({
+        couponId: this.couponId,
+        priceId: this.priceId
+      })
       .pipe(
         catchError((error) => {
           this.notificationService.alert({
@@ -117,7 +120,7 @@ export class GfUserAccountMembershipComponent implements OnDestroy {
 
           throw error;
         }),
-        switchMap(({ sessionId }: { sessionId: string }) => {
+        switchMap(({ sessionId }) => {
           return this.stripeService.redirectToCheckout({ sessionId });
         })
       )

apps/client/src/app/pages/pricing/pricing-page.component.ts

@@ -134,9 +134,12 @@ export class GfPricingPageComponent implements OnDestroy, OnInit {
 
   public onCheckout() {
     this.dataService
-      .createCheckoutSession({ couponId: this.couponId, priceId: this.priceId })
+      .createStripeCheckoutSession({
+        couponId: this.couponId,
+        priceId: this.priceId
+      })
       .pipe(
-        switchMap(({ sessionId }: { sessionId: string }) => {
+        switchMap(({ sessionId }) => {
           return this.stripeService.redirectToCheckout({ sessionId });
         }),
         catchError((error) => {

apps/client/src/app/services/data.service.ts

@@ -32,6 +32,7 @@ import {
   AssetProfileIdentifier,
   BenchmarkMarketDataDetailsResponse,
   BenchmarkResponse,
+  CreateStripeCheckoutSessionResponse,
   DataProviderHealthResponse,
   Export,
   Filter,
@@ -169,17 +170,20 @@ export class DataService {
     return params;
   }
 
-  public createCheckoutSession({
+  public createStripeCheckoutSession({
     couponId,
     priceId
   }: {
     couponId?: string;
     priceId: string;
   }) {
-    return this.http.post('/api/v1/subscription/stripe/checkout-session', {
+    return this.http.post<CreateStripeCheckoutSessionResponse>(
+      '/api/v1/subscription/stripe/checkout-session',
+      {
         couponId,
         priceId
-    });
+      }
+    );
   }
 
   public fetchAccount(aAccountId: string) {

libs/common/src/lib/interfaces/index.ts

@@ -42,6 +42,7 @@ import type { AiPromptResponse } from './responses/ai-prompt-response.interface'
 import type { ApiKeyResponse } from './responses/api-key-response.interface';
 import type { BenchmarkMarketDataDetailsResponse } from './responses/benchmark-market-data-details-response.interface';
 import type { BenchmarkResponse } from './responses/benchmark-response.interface';
+import type { CreateStripeCheckoutSessionResponse } from './responses/create-stripe-checkout-session-response.interface';
 import type { DataEnhancerHealthResponse } from './responses/data-enhancer-health-response.interface';
 import type { DataProviderGhostfolioAssetProfileResponse } from './responses/data-provider-ghostfolio-asset-profile-response.interface';
 import type { DataProviderGhostfolioStatusResponse } from './responses/data-provider-ghostfolio-status-response.interface';
@@ -95,6 +96,7 @@ export {
   BenchmarkProperty,
   BenchmarkResponse,
   Coupon,
+  CreateStripeCheckoutSessionResponse,
   DataEnhancerHealthResponse,
   DataProviderGhostfolioAssetProfileResponse,
   DataProviderGhostfolioStatusResponse,