Express

1. Instala los paquetes.

   npm install express @spacepost/node

2. Crea el servidor.

   server.js

   import express from "express";
   import { SpacePost } from "@spacepost/node";
   
   const app = express();
   const spacepost = new SpacePost(process.env.SPACEPOST_API_KEY);
   
   // Webhooks need the RAW body to verify the signature: register this route BEFORE express.json().
   app.post("/webhooks/spacepost", express.raw({ type: "application/json" }), async (req, res) => {
     try {
       const event = await spacepost.webhooks.verify({
         payload: req.body.toString("utf8"),
         headers: req.headers,
         secret: process.env.SPACEPOST_WEBHOOK_SECRET,
       });
       console.log(event.type, event.data.email_id);
       res.sendStatus(200);
     } catch {
       res.sendStatus(400);
     }
   });
   
   app.use(express.json());
   
   app.post("/send", async (req, res) => {
     const { data, error } = await spacepost.emails.send({
       from: "Acme <hello@acme.com>",
       to: [req.body.to],
       subject: "Hello from Express",
       html: "<p>It works.</p>",
     });
     if (error) return res.status(error.statusCode ?? 500).json(error);
     res.json(data);
   });
   
   app.listen(3000, () => console.log("http://localhost:3000"));

3. Ejecútalo y pruébalo.

   SPACEPOST_API_KEY=sp_live_YOUR_API_KEY node server.js
   curl -X POST localhost:3000/send -H "Content-Type: application/json" -d '{"to":"delivered@test.spacepost.dev"}'