Send emails with Bun

bun add @flaresend/client

FLARESEND_API_KEY=fs_live_...

import { Flaresend } from '@flaresend/client';

const flaresend = new Flaresend({
  apiKey: Bun.env.FLARESEND_API_KEY!,
  baseUrl: 'https://mailer.example.com',
});

const { id } = await flaresend.emails.send({
  from: 'Acme <hello@acme.com>',
  to: 'ada@example.com',
  subject: 'Hello from Bun',
  html: '<p>It works.</p>',
  text: 'It works.',
});

console.log(id);

bun run index.ts

import { Flaresend, FlaresendError } from '@flaresend/client';

const flaresend = new Flaresend({ apiKey: Bun.env.FLARESEND_API_KEY!, baseUrl: 'https://mailer.example.com' });

Bun.serve({
  port: 3000,
  routes: {
    '/invite': {
      POST: async (req) => {
        const { email, inviteId } = await req.json();
        try {
          const { id } = await flaresend.emails.send(
            { from: 'Acme <hello@acme.com>', to: email, subject: "You're invited", text: 'Join us at https://acme.com' },
            { idempotencyKey: `invite-${inviteId}` },
          );
          return Response.json({ id });
        } catch (err) {
          if (err instanceof FlaresendError) return Response.json({ error: err.toJSON() }, { status: err.status || 500 });
          throw err;
        }
      },
    },
  },
});

import { attachmentFromBytes } from '@flaresend/client';

const pdf = new Uint8Array(await Bun.file('./invoice.pdf').arrayBuffer());

await flaresend.emails.send({
  from: 'Acme <billing@acme.com>',
  to: 'ada@example.com',
  subject: 'Your invoice',
  text: 'Your invoice is attached.',
  attachments: [attachmentFromBytes('invoice.pdf', pdf, 'application/pdf')],
});

{
  "type": "validation_error",
  "code": "invalid_body",
  "message": "to contains an invalid address: ada@",
  "param": "to"
}