curl --request POST \
  --url https://app.lettr.com/api/webhooks \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Order Notifications",
  "url": "https://example.com/webhook",
  "auth_type": "basic",
  "auth_username": "user",
  "auth_password": "secret",
  "events_mode": "selected",
  "events": [
    "message.delivery",
    "message.bounce"
  ]
}
'

import requests

url = "https://app.lettr.com/api/webhooks"

payload = {
    "name": "Order Notifications",
    "url": "https://example.com/webhook",
    "auth_type": "basic",
    "auth_username": "user",
    "auth_password": "secret",
    "events_mode": "selected",
    "events": ["message.delivery", "message.bounce"]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Order Notifications',
    url: 'https://example.com/webhook',
    auth_type: 'basic',
    auth_username: 'user',
    auth_password: 'secret',
    events_mode: 'selected',
    events: ['message.delivery', 'message.bounce']
  })
};

fetch('https://app.lettr.com/api/webhooks', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.lettr.com/api/webhooks",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'Order Notifications',
    'url' => 'https://example.com/webhook',
    'auth_type' => 'basic',
    'auth_username' => 'user',
    'auth_password' => 'secret',
    'events_mode' => 'selected',
    'events' => [
        'message.delivery',
        'message.bounce'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.lettr.com/api/webhooks"

	payload := strings.NewReader("{\n  \"name\": \"Order Notifications\",\n  \"url\": \"https://example.com/webhook\",\n  \"auth_type\": \"basic\",\n  \"auth_username\": \"user\",\n  \"auth_password\": \"secret\",\n  \"events_mode\": \"selected\",\n  \"events\": [\n    \"message.delivery\",\n    \"message.bounce\"\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.lettr.com/api/webhooks")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Order Notifications\",\n  \"url\": \"https://example.com/webhook\",\n  \"auth_type\": \"basic\",\n  \"auth_username\": \"user\",\n  \"auth_password\": \"secret\",\n  \"events_mode\": \"selected\",\n  \"events\": [\n    \"message.delivery\",\n    \"message.bounce\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.lettr.com/api/webhooks")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Order Notifications\",\n  \"url\": \"https://example.com/webhook\",\n  \"auth_type\": \"basic\",\n  \"auth_username\": \"user\",\n  \"auth_password\": \"secret\",\n  \"events_mode\": \"selected\",\n  \"events\": [\n    \"message.delivery\",\n    \"message.bounce\"\n  ]\n}"

response = http.request(request)
puts response.read_body