The Customer Portal is a destination where your customers can see their orders and ongoing subscriptions. It’s also where they’re able to get hands on receipts, benefits, and more.

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Redirect to your Customer Portal

The customer portal is directly available from the URL https://polar.sh/your-org-slug/portal. Your customers will be able to authenticate there by entering the email they used to purchase or subscribe to your products. Customer Portal Sign In You can provide a pre-authenticated Customer Portal Link to your customers. This is handy if you want to redirect them directly from your application. Using the Polar API, all you need is to call the customerSessions endpoint. Here’s an example using our TypeScript SDK. 
import { Polar } from "@polar-sh/sdk";

const polar = new Polar({
  accessToken: process.env["POLAR_ACCESS_TOKEN"] ?? "",
});

async function run() {
  const result = await polar.customerSessions.create({
    customerId: "<value>",
  });

  redirect(result.customerPortalUrl)
}

run();
Or, if you use NextJS as your framework, we have a handy utility which shortens down your code significantly. 
// app/portal/route.ts
import { CustomerPortal } from "@polar-sh/nextjs";

export const GET = CustomerPortal({
  accessToken: process.env.POLAR_ACCESS_TOKEN,
  getCustomerId: async (req) => '<value>',
  server: 'sandbox' // Use sandbox if you're testing Polar - pass 'production' otherwise
});