npm install f14
# atau
pip install f14

import { F14 } from 'f14';

const f14 = new F14(process.env.F14_API_KEY);

const { data, error } = await f14.emails.send({
  from: 'Acme <noreply@acme.id>',
  to: 'user@example.com',
  subject: 'Selamat datang',
  html: '<p>Akun kamu sudah aktif.</p>',
});

if (error) {
  console.error(error);
} else {
  console.log('Email ID:', data.emailId);
}

import os
from f14 import F14

client = F14(os.environ["F14_API_KEY"])

resp, _ = client.emails.send(payload={
    "from": "Acme <noreply@acme.id>",
    "to": "user@example.com",
    "subject": "Selamat datang",
    "html": "<p>Akun kamu sudah aktif.</p>",
})

curl -X POST https://app.f14.email/api/v1/emails \
  -H "Authorization: Bearer $F14_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: signup-8812" \
  -d '{
    "from": "noreply@acme.id",
    "to": "user@example.com",
    "subject": "Kode OTP",
    "text": "Kode verifikasi kamu adalah 583109"
  }'

# Response
{ "emailId": "cm3x9k2a10001qz8f7d2h4v1s" }

await f14.emails.batch(
  [
    { from: 'halo@acme.id', to: 'a@example.com', subject: 'Halo A', html: '<p>Hai A</p>' },
    { from: 'halo@acme.id', to: 'b@example.com', subject: 'Halo B', html: '<p>Hai B</p>' },
  ],
  { idempotencyKey: 'welcome-batch-1' },
);

const { data } = await f14.emails.send({
  from: 'halo@acme.id',
  to: 'user@example.com',
  subject: 'Pengingat jadwal',
  html: '<p>Sampai jumpa besok.</p>',
  scheduledAt: '2026-10-15T09:00:00+07:00',
});

await f14.emails.cancel(data.emailId);

import { createHmac, timingSafeEqual } from 'crypto';

export async function POST(req: Request) {
  const rawBody = await req.text();
  const signature = req.headers.get('x-f14-signature') ?? '';
  const timestamp = req.headers.get('x-f14-timestamp') ?? '';

  if (Math.abs(Date.now() - Number(timestamp)) > 5 * 60 * 1000) {
    return new Response('Stale webhook', { status: 400 });
  }

  const expected =
    'v1=' +
    createHmac('sha256', process.env.F14_WEBHOOK_SECRET!)
      .update(`${timestamp}.${rawBody}`)
      .digest('hex');

  const valid =
    expected.length === signature.length &&
    timingSafeEqual(Buffer.from(expected), Buffer.from(signature));
  if (!valid) return new Response('Invalid signature', { status: 401 });

  const event = JSON.parse(rawBody);
  console.log(event.type, event.data.id);
  return new Response('OK');
}