WhatsApp Business, finalmente semplice.

curl -X POST https://api.wassenger.com/v1/messages \
  -H "Token: $WASSENGER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "phone": "+14155550100",
    "message": "Hello from Wassenger 👋"
  }'

// Node.js (fetch ≥ 18)
await fetch('https://api.wassenger.com/v1/messages', {
  method: 'POST',
  headers: {
    'Token': process.env.WASSENGER_API_KEY,
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    phone:   '+14155550100',
    message: 'Hello from Wassenger 👋'
  })
})

import os, requests

requests.post(
    'https://api.wassenger.com/v1/messages',
    headers={'Token': os.environ['WASSENGER_API_KEY']},
    json={
        'phone':   '+14155550100',
        'message': 'Hello from Wassenger 👋'
    }
)

$ch = curl_init('https://api.wassenger.com/v1/messages');
curl_setopt_array($ch, [
    CURLOPT_POST       => true,
    CURLOPT_HTTPHEADER => [
        'Token: ' . getenv('WASSENGER_API_KEY'),
        'Content-Type: application/json'
    ],
    CURLOPT_POSTFIELDS => json_encode([
        'phone'   => '+14155550100',
        'message' => 'Hello from Wassenger 👋'
    ])
]);
curl_exec($ch);

body, _ := json.Marshal(map[string]string{
    "phone":   "+14155550100",
    "message": "Hello from Wassenger 👋",
})

req, _ := http.NewRequest("POST",
    "https://api.wassenger.com/v1/messages",
    bytes.NewReader(body))
req.Header.Set("Token", os.Getenv("WASSENGER_API_KEY"))
req.Header.Set("Content-Type", "application/json")
http.DefaultClient.Do(req)

require 'net/http'
require 'json'

uri = URI('https://api.wassenger.com/v1/messages')
req = Net::HTTP::Post.new(uri,
  'Token'        => ENV['WASSENGER_API_KEY'],
  'Content-Type' => 'application/json')
req.body = {
  phone:   '+14155550100',
  message: 'Hello from Wassenger 👋'
}.to_json
Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(req) }