Bun

1. Install the SDK.

   bun add @spacepost/node

2. Put your key in .env. Bun loads it automatically.

   .env

   SPACEPOST_API_KEY=sp_live_YOUR_API_KEY

3. Send an email.

   send.ts

   import { SpacePost } from "@spacepost/node";
   
   const spacepost = new SpacePost(Bun.env.SPACEPOST_API_KEY);
   
   const { data, error } = await spacepost.emails.send({
     from: "Acme <hello@acme.com>",
     to: "user@example.com",
     subject: "Hello from Bun",
     html: "<p>Sent with Bun and SpacePost.</p>",
   });
   
   console.log(error ?? data);

   bun run send.ts

A tiny HTTP server that sends mail on request:

server.ts

import { SpacePost } from "@spacepost/node";

const spacepost = new SpacePost();

Bun.serve({
  port: 3000,
  async fetch(req) {
    if (req.method !== "POST") return new Response("POST only", { status: 405 });
    const { email } = (await req.json()) as { email: string };
    const { data, error } = await spacepost.emails.send(
      { from: "Acme <hello@acme.com>", to: email, subject: "Thanks for signing up", text: "We will be in touch." },
      { idempotencyKey: `signup-${email}` },
    );
    return Response.json(error ?? data, { status: error?.statusCode ?? 200 });
  },
});