Transactional email that arrives once, and only once.

curl -X POST https://app.usenotix.dev/api/v1/emails \
  -H "Authorization: Bearer $NOTIX_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: order-4471-receipt" \
  -d '{
  "from": "receipts@acme.com",
  "to": "customer@example.com",
  "subject": "Your receipt for order 4471",
  "html": "<p>Thanks for your order.</p>"
}'

import { Notix } from "notix-js";

const notix = new Notix(process.env.NOTIX_API_KEY);

const { data, error } = await notix.emails.send(
  {
    from: "receipts@acme.com",
    to: "customer@example.com",
    subject: "Your receipt for order 4471",
    html: "<p>Thanks for your order.</p>",
  },
  { idempotencyKey: "order-4471-receipt" },
);

import os
from notix import Notix

notix = Notix(os.environ["NOTIX_API_KEY"])

data, error = notix.emails.send(
    {
        "from": "receipts@acme.com",
        "to": "customer@example.com",
        "subject": "Your receipt for order 4471",
        "html": "<p>Thanks for your order.</p>",
    },
    {"idempotency_key": "order-4471-receipt"},
)

package main

import (
    "bytes"
    "net/http"
    "os"
)

func main() {
    body := bytes.NewBufferString(`{
  "from": "receipts@acme.com",
  "to": "customer@example.com",
  "subject": "Your receipt for order 4471",
  "html": "<p>Thanks for your order.</p>"
}`)

    req, _ := http.NewRequest("POST", "https://app.usenotix.dev/api/v1/emails", body)
    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("Authorization", "Bearer "+os.Getenv("NOTIX_API_KEY"))
    req.Header.Set("Idempotency-Key", "order-4471-receipt")

    http.DefaultClient.Do(req)
}

<?php

$ch = curl_init('https://app.usenotix.dev/api/v1/emails');

curl_setopt_array($ch, [
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_POST => true,
  CURLOPT_HTTPHEADER => [
    'Content-Type: application/json',
    'Authorization: Bearer ' . getenv('NOTIX_API_KEY'),
    'Idempotency-Key: order-4471-receipt',
  ],
  CURLOPT_POSTFIELDS => json_encode([
    'from' => 'receipts@acme.com',
    'to' => 'customer@example.com',
    'subject' => 'Your receipt for order 4471',
    'html' => '<p>Thanks for your order.</p>',
  ]),
]);

curl_exec($ch);