Quickstart for Sellers

npm install @stellarx402/express

import express from "express";
import { requirePayment } from "@stellarx402/express";

const app = express();

app.get(
  "/weather",
  requirePayment({
    facilitator: "https://facilitator.stellarx402.com",
    network: "stellar:testnet",
    scheme: "exact",
    amount: "0.005",
    asset: "USDC",
    payTo: "GCKF...QMBA",
    // Discovery metadata: this is what makes the endpoint findable
    describe: {
      title: "5-day weather forecast",
      description: "Returns hourly forecast for the next 5 days given lat/lng",
      inputs: { lat: "number", lng: "number" },
    },
  }),
  (req, res) => {
    res.json({ forecast: getForecast(req.query.lat, req.query.lng) });
  }
);

app.listen(3000);

curl "https://facilitator.stellarx402.com/discovery/search?q=weather+forecast"