545563e776
- 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.
3.0 KiB
p-map 
Map over promises concurrently
Useful when you need to run promise-returning & async functions multiple times with different inputs concurrently.
Install
$ npm install p-map
Usage
const pMap = require('p-map');
const got = require('got');
const sites = [
getWebsiteFromUsername('https://sindresorhus'), //=> Promise
'https://ava.li',
'https://github.com'
];
(async () => {
const mapper = async site => {
const {requestUrl} = await got.head(site);
return requestUrl;
};
const result = await pMap(sites, mapper, {concurrency: 2});
console.log(result);
//=> ['https://sindresorhus.com/', 'https://ava.li/', 'https://github.com/']
})();
API
pMap(input, mapper, options?)
Returns a Promise that is fulfilled when all promises in input and ones returned from mapper are fulfilled, or rejects if any of the promises reject. The fulfilled value is an Array of the fulfilled values returned from mapper in input order.
input
Type: Iterable<Promise | unknown>
Iterated over concurrently in the mapper function.
mapper(element, index)
Type: Function
Expected to return a Promise or value.
options
Type: object
concurrency
Type: number (Integer)
Default: Infinity
Minimum: 1
Number of concurrently pending promises returned by mapper.
stopOnError
Type: boolean
Default: true
When set to false, instead of stopping when a promise rejects, it will wait for all the promises to settle and then reject with an aggregated error containing all the errors from the rejected promises.
p-map for enterprise
Available as part of the Tidelift Subscription.
The maintainers of p-map and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. Learn more.
Related
- p-all - Run promise-returning & async functions concurrently with optional limited concurrency
- p-filter - Filter promises concurrently
- p-times - Run promise-returning & async functions a specific number of times concurrently
- p-props - Like
Promise.all()but forMapandObject - p-map-series - Map over promises serially
- p-queue - Promise queue with concurrency control
- More…