Paddle

npm install logit @paddle/paddle-node-sdk

// app/api/webhooks/paddle/route.ts
import { Paddle, EventName } from "@paddle/paddle-node-sdk";
import { init } from "logit";

const paddle = new Paddle(process.env.PADDLE_API_KEY!);
const logit = init({ token: process.env.LOGIT_API_KEY! });

export async function POST(req: Request) {
  const body = await req.text();
  const signature = req.headers.get("paddle-signature") ?? "";

  const event = await paddle.webhooks.unmarshal(body, process.env.PADDLE_WEBHOOK_SECRET!, signature);

  if (!event) return new Response("Invalid signature", { status: 401 });

  switch (event.eventType) {
    case EventName.TransactionCompleted: {
      const tx = event.data;
      await logit.now("payments", {
        event: "Paddle transaction completed",
        description: `${tx.customData ?? tx.id}`,
        icon: "🏓",
        notify: true,
        tags: { currency: tx.currencyCode },
        metadata: { transactionId: tx.id },
      });
      break;
    }
    case EventName.SubscriptionCanceled: {
      const sub = event.data;
      await logit.now("churn", {
        event: "Paddle subscription cancelled",
        icon: "😢",
        notify: true,
        metadata: { subscriptionId: sub.id, customerId: sub.customerId },
      });
      break;
    }
  }

  return new Response("ok");
}

LOGIT_API_KEY=lk_live_xxxxxxxxxxxxxxxx
PADDLE_API_KEY=your_paddle_api_key
PADDLE_WEBHOOK_SECRET=your_webhook_secret