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feat(billing): implement stripe checkout
refs #247
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46 changes: 46 additions & 0 deletions
46
apps/api/src/billing/controllers/checkout/checkout.controller.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import type { Context } from "hono"; | ||
| import { singleton } from "tsyringe"; | ||
|
|
||
| import { AuthService } from "@src/auth/services/auth.service"; | ||
| import { BillingConfig, InjectBillingConfig } from "@src/billing/providers"; | ||
| import { CheckoutService } from "@src/billing/services/checkout/checkout.service"; | ||
| import { StripeService } from "@src/billing/services/stripe/stripe.service"; | ||
|
|
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| @singleton() | ||
| export class CheckoutController { | ||
| constructor( | ||
| private readonly stripe: StripeService, | ||
| private readonly authService: AuthService, | ||
| @InjectBillingConfig() private readonly billingConfig: BillingConfig, | ||
| private readonly checkoutService: CheckoutService | ||
| ) {} | ||
|
|
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| async checkout(c: Context) { | ||
| const { currentUser } = this.authService; | ||
| const protocol = c.req.header("x-forwarded-proto"); | ||
| const host = c.req.header("x-forwarded-host"); | ||
| const referrer = `${protocol}://${host}`; | ||
|
|
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| if (!this.billingConfig.ALLOWED_CHECKOUT_REFERRERS.includes(referrer)) { | ||
| return c.redirect(`${referrer}?forbidden=true`); | ||
| } | ||
|
|
||
| if (!currentUser?.userId) { | ||
| return c.redirect(`${referrer}?unauthorized=true`); | ||
| } | ||
|
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| const session = await this.checkoutService.checkoutFor(currentUser, referrer); | ||
|
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| return c.redirect(session.url); | ||
| } | ||
|
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| async webhook(signature: string, input: string) { | ||
| const event = this.stripe.webhooks.constructEvent(input, signature, this.billingConfig.STRIPE_WEBHOOK_SECRET); | ||
|
|
||
| if (event.type) { | ||
| const paymentIntentSucceeded = event.data.object; | ||
| console.log("DEBUG paymentIntentSucceeded", paymentIntentSucceeded); | ||
| // TODO: implement wallet refill here | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| import { createRoute } from "@hono/zod-openapi"; | ||
| import { container } from "tsyringe"; | ||
|
|
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| import { CheckoutController } from "@src/billing/controllers/checkout/checkout.controller"; | ||
| import { OpenApiHonoHandled } from "@src/core/services/open-api-hono-handled/open-api-hono-handled"; | ||
|
|
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| const route = createRoute({ | ||
| method: "get", | ||
| path: "/v1/checkout", | ||
| summary: "Creates a stripe checkout session and redirects to checkout", | ||
| tags: ["Wallets"], | ||
| request: {}, | ||
| responses: { | ||
| 301: { | ||
| description: "Redirects to the checkout page" | ||
| } | ||
| } | ||
| }); | ||
|
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| export const checkoutRouter = new OpenApiHonoHandled(); | ||
|
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| checkoutRouter.openapi(route, async function routeCheckout(c) { | ||
| return await container.resolve(CheckoutController).checkout(c); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,5 @@ | ||
| export * from "@src/billing/routes/create-wallet/create-wallet.router"; | ||
| export * from "@src/billing/routes/get-wallet-list/get-wallet-list.router"; | ||
| export * from "@src/billing/routes/checkout/checkout.router"; | ||
| export * from "@src/billing/routes/sign-and-broadcast-tx/sign-and-broadcast-tx.router"; | ||
| export * from "@src/billing/routes/stripe-webhook/stripe-webhook.router"; |
39 changes: 39 additions & 0 deletions
39
apps/api/src/billing/routes/stripe-webhook/stripe-webhook.router.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| import { createRoute } from "@hono/zod-openapi"; | ||
| import { container } from "tsyringe"; | ||
| import { z } from "zod"; | ||
|
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| import { CheckoutController } from "@src/billing/controllers/checkout/checkout.controller"; | ||
| import { OpenApiHonoHandled } from "@src/core/services/open-api-hono-handled/open-api-hono-handled"; | ||
|
|
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| const route = createRoute({ | ||
| method: "post", | ||
| path: "/v1/stripe-webhook", | ||
| summary: "", | ||
| request: { | ||
| body: { | ||
| content: { | ||
| "application/json": { | ||
| schema: z.any() | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| responses: { | ||
| 200: { | ||
| description: "", | ||
| content: { | ||
| "application/json": { | ||
| schema: z.void() | ||
| } | ||
| } | ||
| } | ||
| } | ||
| }); | ||
|
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| export const stripeWebhook = new OpenApiHonoHandled(); | ||
|
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| stripeWebhook.openapi(route, async function routeStripeWebhook(c) { | ||
| const sig = c.req.header("stripe-signature"); | ||
| await container.resolve(CheckoutController).webhook(sig, await c.req.text()); | ||
| return c.json({}, 200); | ||
| }); |
46 changes: 46 additions & 0 deletions
46
apps/api/src/billing/services/checkout/checkout.service.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import { singleton } from "tsyringe"; | ||
|
|
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| import { BillingConfig, InjectBillingConfig } from "@src/billing/providers"; | ||
| import { StripeService } from "@src/billing/services/stripe/stripe.service"; | ||
| import { UserOutput, UserRepository } from "@src/user/repositories"; | ||
|
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| @singleton() | ||
| export class CheckoutService { | ||
| constructor( | ||
| private readonly stripe: StripeService, | ||
| private readonly userRepository: UserRepository, | ||
| @InjectBillingConfig() private readonly billingConfig: BillingConfig | ||
| ) {} | ||
|
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| async checkoutFor(user: UserOutput, domain: string) { | ||
| const { stripeCustomerId } = await this.ensureCustomer(user); | ||
|
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| return await this.stripe.startCheckoutSession({ | ||
| customerId: stripeCustomerId, | ||
| domain | ||
| }); | ||
| } | ||
|
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| private async ensureCustomer<T extends UserOutput>(user: T): Promise<Omit<T, "stripeCustomerId"> & Required<Pick<T, "stripeCustomerId">>> { | ||
| if (user.stripeCustomerId) { | ||
| return user; | ||
| } | ||
|
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| const customer = await this.stripe.customers.create({ | ||
| email: user.email, | ||
| name: user.username, | ||
| metadata: { | ||
| userId: user.userId | ||
| } | ||
| }); | ||
|
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| await this.userRepository.updateById(user.id, { | ||
| stripeCustomerId: customer.id | ||
| }); | ||
|
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| return { | ||
| ...user, | ||
| stripeCustomerId: customer.id | ||
| }; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| import Stripe from "stripe"; | ||
| import { singleton } from "tsyringe"; | ||
|
|
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| import { BillingConfig, InjectBillingConfig } from "@src/billing/providers"; | ||
|
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| interface CheckoutOptions { | ||
| customerId: string; | ||
| domain: string; | ||
| } | ||
|
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| @singleton() | ||
| export class StripeService extends Stripe { | ||
| constructor(@InjectBillingConfig() private readonly billingConfig: BillingConfig) { | ||
| super(process.env.STRIPE_SECRET_KEY, { | ||
| apiVersion: "2024-06-20" | ||
| }); | ||
| } | ||
|
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| async startCheckoutSession(options: CheckoutOptions) { | ||
| return await this.checkout.sessions.create({ | ||
| line_items: [ | ||
| { | ||
| price: this.billingConfig.STRIPE_PRICE_ID, | ||
| quantity: 1 | ||
| } | ||
| ], | ||
| mode: "payment", | ||
| customer: options.customerId, | ||
| payment_intent_data: { | ||
| setup_future_usage: "off_session" | ||
| }, | ||
| saved_payment_method_options: { | ||
| payment_method_save: "enabled" | ||
| }, | ||
| success_url: `${options.domain}?payment-success=true`, | ||
| cancel_url: `${options.domain}?payment-canceled=true` | ||
| }); | ||
| } | ||
| } |
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