Zero-latency transactional email on Vercel Edge runtime with lightweight HTTP dispatch

import { NextResponse } from 'next/server';
import { SadaSend } from 'sadasend';

export const runtime = 'edge';

const sadasend = new SadaSend(process.env.SADASEND_API_KEY);

export async function POST(req: Request) {
  const { email, name } = await req.json();

  const result = await sadasend.emails.send({
    from: 'hello@yourdomain.com',
    to: email,
    subject: `Welcome to our platform, ${name}!`,
    html: `<h1>Welcome aboard, ${name}!</h1><p>Your workspace is active.</p>`,
  });

  return NextResponse.json({ success: true, messageId: result.id });
}