Content-Type: application/json
User-Agent: QuickSign-API/1.0

{
  "documentId": "550e8400-e29b-41d4-a716-446655440000",
  "status": "COMPLETED",
  "downloadUrl": "https://s3.amazonaws.com/bucket/path/to/signed-document.pdf"
}

const express = require('express');
const app = express();

app.use(express.json());

app.post('/api/webhooks/quicksign', async (req, res) => {
  try {
    const { documentId, status, downloadUrl } = req.body;
    
    console.log(`Document ${documentId} is now ${status}`);
    
    // Download the signed document
    const response = await fetch(downloadUrl);
    const buffer = await response.arrayBuffer();
    
    // Save to your storage
    // await saveDocument(documentId, buffer);
    
    // Update your database
    // await updateDocumentStatus(documentId, status);
    
    // Notify users
    // await sendNotification(documentId);
    
    // Return 200 OK to acknowledge receipt
    res.status(200).json({ received: true });
  } catch (error) {
    console.error('Webhook error:', error);
    res.status(500).json({ error: 'Internal server error' });
  }
});

app.listen(3000, () => {
  console.log('Webhook server running on port 3000');
});

from flask import Flask, request, jsonify
import requests

app = Flask(__name__)

@app.route('/api/webhooks/quicksign', methods=['POST'])
def webhook_handler():
    try:
        data = request.get_json()
        document_id = data.get('documentId')
        status = data.get('status')
        download_url = data.get('downloadUrl')
        
        print(f'Document {document_id} is now {status}')
        
        # Download the signed document
        response = requests.get(download_url)
        pdf_content = response.content
        
        # Save to your storage
        # save_document(document_id, pdf_content)
        
        # Update your database
        # update_document_status(document_id, status)
        
        # Notify users
        # send_notification(document_id)
        
        # Return 200 OK
        return jsonify({'received': True}), 200
    except Exception as e:
        print(f'Webhook error: {e}')
        return jsonify({'error': 'Internal server error'}), 500

if __name__ == '__main__':
    app.run(port=3000)

if (req.headers['user-agent'] !== 'QuickSign-API/1.0') {
  return res.status(403).json({ error: 'Invalid request origin' });
}

app.post('/api/webhooks/quicksign', async (req, res) => {
  // Acknowledge receipt immediately
  res.status(200).json({ received: true });
  
  // Process asynchronously (don't wait for this)
  processWebhookAsync(req.body).catch(console.error);
});

async function processWebhookAsync(data) {
  // Download document
  // Update database
  // Send notifications
  // etc.
}