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@polar-sh/fastify
Advanced tools
Payments and Checkouts made dead simple with Fastify.
pnpm install @polar-sh/fastify zod
Create a Checkout handler which takes care of redirections.
import fastify from "fastify";
import { Checkout } from "@polar-sh/fastify";
fastify().get(
"/checkout",
Checkout({
accessToken: "xxx", // Or set an environment variable to POLAR_ACCESS_TOKEN
successUrl: process.env.SUCCESS_URL,
server: "sandbox", // Use sandbox if you're testing Polar - omit the parameter or pass 'production' otherwise
theme: "dark" // Enforces the theme - System-preferred theme will be set if left omitted
}),
);
Pass query params to this route.
?products=123
?products=123&customerId=xxx
?products=123&customerExternalId=xxx
?products=123&customerEmail=janedoe@gmail.com
?products=123&customerName=Jane
URL-Encoded JSON string
Create a customer portal where your customer can view orders and subscriptions.
import fastify from "fastify";
import { CustomerPortal } from "@polar-sh/fastify";
fastify().get(
"/portal",
CustomerPortal({
accessToken: "xxx", // Or set an environment variable to POLAR_ACCESS_TOKEN
getCustomerId: (event) => "", // Fuction to resolve a Polar Customer ID
server: "sandbox", // Use sandbox if you're testing Polar - omit the parameter or pass 'production' otherwise
}),
);
A simple utility which resolves incoming webhook payloads by signing the webhook secret properly.
import fastify from 'fastify'
import { Webhooks } from "@polar-sh/fastify";
fastify.post('/polar/webhooks', Webhooks({
webhookSecret: process.env.POLAR_WEBHOOK_SECRET!,
onPayload: async (payload) => /** Handle payload */,
}))
The Webhook handler also supports granular handlers for easy integration.
FAQs
Polar integration for Fastify
We found that @polar-sh/fastify demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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