develop-b24-node

name	develop-b24-node
description	Develop backend applications for Bitrix24 using Node.js, Express, and Bitrix24 JS SDK. Use this skill when you need to create API endpoints, work with Bitrix24 data, or manage authentication in Node.js.

Develop Bitrix24 Node.js Backend

Quick Start

The Node.js backend is built with Express and uses @bitrix24/b24jssdk for Bitrix24 interaction.

Key Files

• backends/node/api/server.js: Main entry point and API routes.
• backends/node/api/utils/verifyToken.js: JWT verification middleware.

Creating API Endpoints

Use Express routing and the verifyToken middleware.

import verifyToken from './utils/verifyToken.js';

app.get('/api/my-endpoint', verifyToken, async (req, res) => {
  // JWT payload is available in req.user (if verifyToken adds it, check implementation)
  // or you can decode it manually if needed
  
  res.json({ data: 'value' });
});

Bitrix24 Interaction (JS SDK)

Use @bitrix24/b24jssdk (specifically B24Hook for backend or B24Frame if rendering UI, but usually backend uses Hook or OAuth).

Initialization

import { B24Hook } from '@bitrix24/b24jssdk';

// Initialize with webhook URL (from env or DB)
const b24 = new B24Hook({
  b24Url: 'https://your-portal.bitrix24.com',
  userId: 1,
  secret: 'webhook_token'
});

Common Operations

const result = await b24.callMethod('crm.deal.list', {
  select: ['ID', 'TITLE']
});
const deals = result.getData();

Authentication Flow

1. Installation: /api/install receives OAuth data.
2. Token Issue: /api/getToken issues a JWT for the frontend using jsonwebtoken.
3. Requests: Frontend sends JWT in Authorization header. verifyToken middleware validates it.

Database

• Drivers: pg (PostgreSQL) or mysql2 (MySQL).
• Configuration: Based on DB_TYPE env var.
• Connection: pool object in server.js.

Best Practices

1. Middleware: Use verifyToken for protected routes.
2. Async/Await: Use async/await for database and API calls.
3. Environment: Use process.env for configuration.