Resell WhatsApp API with per-connection margin and centralized provisioning

import { DApi } from 'd-api-sdk'

const dapi = new DApi({ apiKey: process.env.DAPI_API_KEY })

await dapi.sessions.create({
  sessionId: 'customer-42',
  webhookUrl: 'https://your-app.com/webhooks/whatsapp',
})

const { qrCodeImage } = await dapi.sessions.getQRCode('customer-42')

// once the number scans the QR code
await dapi.messages.sendText({
  sessionId: 'customer-42',
  to: '14155550123',
  text: 'Your order is confirmed!',
})

curl -X POST https://api.d-api.cloud/api/v1/sessions \
  -H "Authorization: $DAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"sessionId": "customer-42", "webhookUrl": "https://your-app.com/webhooks/whatsapp"}'

curl https://api.d-api.cloud/api/v1/sessions/customer-42/qr \
  -H "Authorization: $DAPI_API_KEY"

# once the number scans the QR code
curl -X POST https://api.d-api.cloud/api/v1/messages/send/text \
  -H "Authorization: $DAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"sessionId": "customer-42", "to": "14155550123", "text": "Your order is confirmed!"}'

import os
import requests

API = "https://api.d-api.cloud/api/v1"
HEADERS = {"Authorization": os.environ["DAPI_API_KEY"]}

requests.post(f"{API}/sessions", headers=HEADERS, timeout=10, json={
    "sessionId": "customer-42",
    "webhookUrl": "https://your-app.com/webhooks/whatsapp",
})

qr = requests.get(f"{API}/sessions/customer-42/qr", headers=HEADERS, timeout=10).json()

# once the number scans the QR code
requests.post(f"{API}/messages/send/text", headers=HEADERS, timeout=10, json={
    "sessionId": "customer-42",
    "to": "14155550123",
    "text": "Your order is confirmed!",
})

<?php
use GuzzleHttp\Client;

$dapi = new Client([
    'base_uri' => 'https://api.d-api.cloud/api/v1/',
    'headers'  => ['Authorization' => getenv('DAPI_API_KEY')],
    'timeout'  => 10,
]);

$dapi->post('sessions', ['json' => [
    'sessionId'  => 'customer-42',
    'webhookUrl' => 'https://your-app.com/webhooks/whatsapp',
]]);

$qr = json_decode($dapi->get('sessions/customer-42/qr')->getBody(), true);

// once the number scans the QR code
$dapi->post('messages/send/text', ['json' => [
    'sessionId' => 'customer-42',
    'to'        => '14155550123',
    'text'      => 'Your order is confirmed!',
]]);