chore(api): update polar sdk and improve billing and checkout logic

api/package.json

@@ -30,7 +30,7 @@
     "@nestjs/schedule": "^4.1.1",
     "@nestjs/swagger": "^7.4.2",
     "@nestjs/throttler": "^6.2.1",
-    "@polar-sh/sdk": "^0.19.2",
+    "@polar-sh/sdk": "^0.26.1",
     "axios": "^1.7.7",
     "bcryptjs": "^2.4.3",
     "dotenv": "^16.4.5",

api/pnpm-lock.yaml

@@ -39,8 +39,8 @@ importers:
         specifier: ^6.2.1
         version: 6.2.1(@nestjs/common@10.4.5(reflect-metadata@0.2.2)(rxjs@7.8.1))(@nestjs/core@10.4.5)(reflect-metadata@0.2.2)
       '@polar-sh/sdk':
-        specifier: ^0.19.2
-        version: 0.19.2(zod@3.24.1)
+        specifier: ^0.26.1
+        version: 0.26.1(zod@3.24.1)
       axios:
         specifier: ^1.7.7
         version: 1.7.7
@@ -892,8 +892,8 @@ packages:
     resolution: {integrity: sha512-cq8o4cWH0ibXh9VGi5P20Tu9XF/0fFXl9EUinr9QfTM7a7p0oTA4iJRCQWppXR1Pg8dSM0UCItCkPwsk9qWWYA==}
     engines: {node: ^12.20.0 || ^14.18.0 || >=16.0.0}
 
-  '@polar-sh/sdk@0.19.2':
-    resolution: {integrity: sha512-n1emRNmhcAzRfVAWBiVVCJ2krBSZ4wANVTRO7hCMchYCkxyV+kiRdjyvBdVG3JpRsS6SR7yBr2+CRJkuHPPeDg==}
+  '@polar-sh/sdk@0.26.1':
+    resolution: {integrity: sha512-OEaxiNJaxpeNi7LANHR5S71BAyORk6W0lwkfHcrGyMGS9VDdgXnZjB8QZ3tFSXbQvt3yZdHShX6pPC8xOxNvFw==}
     peerDependencies:
       zod: '>= 3'
 
@@ -5505,7 +5505,7 @@ snapshots:
 
   '@pkgr/core@0.1.1': {}
 
-  '@polar-sh/sdk@0.19.2(zod@3.24.1)':
+  '@polar-sh/sdk@0.26.1(zod@3.24.1)':
     dependencies:
       standardwebhooks: 1.0.0
       zod: 3.24.1

api/src/billing/billing.controller.ts

@@ -57,8 +57,14 @@ export class BillingController {
         console.log(payload)
         await this.billingService.switchPlan({
           userId: payload.data?.metadata?.userId as string,
-          newPlanName: payload.data?.product?.name?.split(' ')[payload.data?.product?.name?.length - 1] || 'pro',
+          // TODO: remove this after more plans are added
+          newPlanName: 'pro',
           newPlanPolarProductId: payload.data?.product?.id,
+          currentPeriodStart: payload.data?.currentPeriodStart,
+          currentPeriodEnd: payload.data?.currentPeriodEnd,
+          status: payload.data?.status,
+          subscriptionStartDate: payload.data?.createdAt,
+          subscriptionEndDate: payload.data?.canceledAt,
         })
         break
 

api/src/billing/billing.dto.ts

@@ -11,7 +11,13 @@ export class PlanDTO {
   yearlyPrice?: number
 
   @ApiProperty({ type: String })
-  polarProductId: string
+  polarProductId?: string
+
+  @ApiProperty({ type: String })
+  polarMonthlyProductId?: string
+
+  @ApiProperty({ type: String })
+  polarYearlyProductId?: string
 
   @ApiProperty({ type: Boolean })
   isActive: boolean

api/src/billing/billing.service.ts

@@ -12,7 +12,10 @@ import { CheckoutResponseDTO, PlanDTO } from './billing.dto'
 import { SMSDocument } from 'src/gateway/schemas/sms.schema'
 import { SMS } from 'src/gateway/schemas/sms.schema'
 import { validateEvent } from '@polar-sh/sdk/webhooks'
-import { PolarWebhookPayload, PolarWebhookPayloadDocument } from './schemas/polar-webhook-payload.schema'
+import {
+  PolarWebhookPayload,
+  PolarWebhookPayloadDocument,
+} from './schemas/polar-webhook-payload.schema'
 
 @Injectable()
 export class BillingService {
@@ -27,7 +30,6 @@ export class BillingService {
     @InjectModel(PolarWebhookPayload.name)
     private polarWebhookPayloadModel: Model<PolarWebhookPayloadDocument>,
   ) {
-    this.initializePlans()
     this.polarApi = new Polar({
       accessToken: process.env.POLAR_ACCESS_TOKEN ?? '',
       server:
@@ -35,38 +37,6 @@ export class BillingService {
     })
   }
 
-  private async initializePlans() {
-    const plans = await this.planModel.find()
-    if (plans.length === 0) {
-      await this.planModel.create([
-        {
-          name: 'free',
-          dailyLimit: 50,
-          monthlyLimit: 1000,
-          bulkSendLimit: 50,
-          monthlyPrice: 0,
-          yearlyPrice: 0,
-        },
-        {
-          name: 'pro',
-          dailyLimit: -1, // -1 means unlimited
-          monthlyLimit: 5000,
-          bulkSendLimit: -1,
-          monthlyPrice: 690, // $6.90
-          yearlyPrice: 6900, // $69.00
-        },
-        {
-          name: 'custom',
-          dailyLimit: -1,
-          monthlyLimit: -1,
-          bulkSendLimit: -1,
-          monthlyPrice: 0, // Custom pricing
-          yearlyPrice: 0, // Custom pricing
-        },
-      ])
-    }
-  }
-
   async getPlans(): Promise<PlanDTO[]> {
     return this.planModel.find({
       isActive: true,
@@ -79,8 +49,6 @@ export class BillingService {
       isActive: true,
     })
 
-
-
     let plan = null
 
     if (!subscription) {
@@ -107,7 +75,10 @@ export class BillingService {
       name: payload.planName,
     })
 
-    if (!selectedPlan?.polarProductId) {
+    if (
+      !selectedPlan?.polarMonthlyProductId &&
+      !selectedPlan?.polarYearlyProductId
+    ) {
       throw new Error('Plan cannot be purchased')
     }
 
@@ -118,10 +89,11 @@ export class BillingService {
 
     try {
       const checkoutOptions: any = {
-        productId: selectedPlan.polarProductId,
-        // productPriceId: isYearly
-        //   ? selectedPlan.yearlyPolarProductId
-        //   : selectedPlan.monthlyPolarProductId,
+        // productId: selectedPlan.polarProductId, // deprecated
+        products: [
+          selectedPlan.polarMonthlyProductId,
+          selectedPlan.polarYearlyProductId,
+        ],
         successUrl: `${process.env.FRONTEND_URL}/dashboard?checkout-success=1&checkout_id={CHECKOUT_ID}`,
         cancelUrl: `${process.env.FRONTEND_URL}/dashboard?checkout-cancel=1&checkout_id={CHECKOUT_ID}`,
         customerEmail: user.email,
@@ -138,8 +110,7 @@ export class BillingService {
         checkoutOptions.discountId = discount.id
       }
 
-      const checkout =
-        await this.polarApi.checkouts.custom.create(checkoutOptions)
+      const checkout = await this.polarApi.checkouts.create(checkoutOptions)
       console.log(checkout)
       return { redirectUrl: checkout.url }
     } catch (error) {
@@ -226,20 +197,35 @@ export class BillingService {
     userId,
     newPlanName,
     newPlanPolarProductId,
+    currentPeriodStart,
+    currentPeriodEnd,
+    subscriptionStartDate,
+    subscriptionEndDate,
+    status,
   }: {
     userId: string
     newPlanName?: string
     newPlanPolarProductId?: string
+    createdAt?: Date
+    currentPeriodStart?: Date
+    currentPeriodEnd?: Date
+    subscriptionStartDate?: Date
+    subscriptionEndDate?: Date
+    status?: string
   }) {
-    console.log(`Switching plan for user: ${userId}`);
+    console.log(`Switching plan for user: ${userId}`)
 
     // Convert userId to ObjectId
-    const userObjectId = new Types.ObjectId(userId);
+    const userObjectId = new Types.ObjectId(userId)
 
     let plan: PlanDocument
     if (newPlanPolarProductId) {
       plan = await this.planModel.findOne({
-        polarProductId: newPlanPolarProductId,
+        $or: [
+          // { polarProductId: newPlanPolarProductId }, // deprecated
+          { polarMonthlyProductId: newPlanPolarProductId },
+          { polarYearlyProductId: newPlanPolarProductId },
+        ],
       })
     } else if (newPlanName) {
       plan = await this.planModel.findOne({ name: newPlanName })
@@ -249,24 +235,33 @@ export class BillingService {
       throw new Error('Plan not found')
     }
 
-    console.log(`Found plan: ${plan.name}`);
+    console.log(`Found plan: ${plan.name}`)
 
     // Deactivate current active subscriptions
     const result = await this.subscriptionModel.updateMany(
       { user: userObjectId, plan: { $ne: plan._id }, isActive: true },
       { isActive: false, endDate: new Date() },
     )
-    console.log(`Deactivated subscriptions: ${result.modifiedCount}`);
+    console.log(`Deactivated subscriptions: ${result.modifiedCount}`)
 
     // Create or update the new subscription
     const updateResult = await this.subscriptionModel.updateOne(
       { user: userObjectId, plan: plan._id },
-      { isActive: true },
+      {
+        isActive: true,
+        currentPeriodStart,
+        currentPeriodEnd,
+        subscriptionStartDate,
+        subscriptionEndDate,
+        status,
+      },
       { upsert: true },
     )
-    console.log(`Updated or created subscription: ${updateResult.upsertedCount > 0 ? 'Created' : 'Updated'}`);
+    console.log(
+      `Updated or created subscription: ${updateResult.upsertedCount > 0 ? 'Created' : 'Updated'}`,
+    )
 
-    return { success: true, plan: plan.name };
+    return { success: true, plan: plan.name }
   }
 
   async canPerformAction(
@@ -274,9 +269,6 @@ export class BillingService {
     action: 'send_sms' | 'receive_sms' | 'bulk_send_sms',
     value: number,
   ) {
-
-    
-
     // TODO: temporary allow all requests until march 15 2025
     if (new Date() < new Date('2025-03-15')) {
       return true

api/src/billing/schemas/plan.schema.ts

@@ -26,6 +26,24 @@ export class Plan {
   @Prop({ type: String, unique: true })
   polarProductId?: string
 
+  @Prop({ type: String, unique: true })
+  polarMonthlyProductId?: string
+
+  @Prop({ type: String, unique: true })
+  polarYearlyProductId?: string
+
+  @Prop({ type: Date })
+  subscriptionStartDate?: Date
+
+  @Prop({ type: Date })
+  subscriptionEndDate?: Date
+
+  @Prop({ type: Date })
+  currentPeriodStart?: Date
+
+  @Prop({ type: Date })
+  currentPeriodEnd?: Date
+
   @Prop({ type: Boolean, default: true })
   isActive: boolean
 }

api/src/gateway/gateway.service.ts

@@ -18,7 +18,7 @@ import { SMSBatch } from './schemas/sms-batch.schema'
 import {
   BatchResponse,
   Message,
-} from 'firebase-admin/lib/messaging/messaging-api'
+} from 'firebase-admin/messaging'
 import { WebhookEvent } from 'src/webhook/webhook-event.enum'
 import { WebhookService } from 'src/webhook/webhook.service'
 import { BillingService } from 'src/billing/billing.service'

api/tsconfig.json

@@ -1,12 +1,13 @@
 {
   "compilerOptions": {
-    "module": "commonjs",
+    "target": "ESNext",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
     "declaration": true,
     "removeComments": true,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
     "allowSyntheticDefaultImports": true,
-    "target": "es2017",
     "sourceMap": true,
     "outDir": "./dist",
     "baseUrl": "./",