Automated Action 545563e776 Implement comprehensive real-time chat API with NestJS
- Complete NestJS TypeScript implementation with WebSocket support
- Direct messaging (DM) and group chat functionality
- End-to-end encryption with AES encryption and key pairs
- Media file support (images, videos, audio, documents) up to 100MB
- Push notifications with Firebase Cloud Messaging integration
- Mention alerts and real-time typing indicators
- User authentication with JWT and Passport
- SQLite database with TypeORM entities and relationships
- Comprehensive API documentation with Swagger/OpenAPI
- File upload handling with secure access control
- Online/offline status tracking and presence management
- Message editing, deletion, and reply functionality
- Notification management with automatic cleanup
- Health check endpoint for monitoring
- CORS configuration for cross-origin requests
- Environment-based configuration management
- Structured for Flutter SDK integration

Features implemented:
 Real-time messaging with Socket.IO
 User registration and authentication
 Direct messages and group chats
 Media file uploads and management
 End-to-end encryption
 Push notifications
 Mention alerts
 Typing indicators
 Message read receipts
 Online status tracking
 File access control
 Comprehensive API documentation

Ready for Flutter SDK development and production deployment.
2025-06-21 17:13:05 +00:00

1.7 KiB

async-retry

Retrying made simple, easy, and async.

Usage

// Packages
const retry = require('async-retry');
const fetch = require('node-fetch');

await retry(
  async (bail) => {
    // if anything throws, we retry
    const res = await fetch('https://google.com');

    if (403 === res.status) {
      // don't retry upon 403
      bail(new Error('Unauthorized'));
      return;
    }

    const data = await res.text();
    return data.substr(0, 500);
  },
  {
    retries: 5,
  }
);

API

retry(retrier : Function, opts : Object) => Promise
  • The supplied function can be async or not. In other words, it can be a function that returns a Promise or a value.
  • The supplied function receives two parameters
    1. A Function you can invoke to abort the retrying (bail)
    2. A Number identifying the attempt. The absolute first attempt (before any retries) is 1.
  • The opts are passed to node-retry. Read its docs
    • retries: The maximum amount of times to retry the operation. Default is 10.
    • factor: The exponential factor to use. Default is 2.
    • minTimeout: The number of milliseconds before starting the first retry. Default is 1000.
    • maxTimeout: The maximum number of milliseconds between two retries. Default is Infinity.
    • randomize: Randomizes the timeouts by multiplying with a factor between 1 to 2. Default is true.
    • onRetry: an optional Function that is invoked after a new retry is performed. It's passed the Error that triggered it as a parameter.

Authors