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.
4.8 KiB
negotiator
An HTTP content negotiator for Node.js
Installation
$ npm install negotiator
API
var Negotiator = require('negotiator')
Accept Negotiation
availableMediaTypes = ['text/html', 'text/plain', 'application/json']
// The negotiator constructor receives a request object
negotiator = new Negotiator(request)
// Let's say Accept header is 'text/html, application/*;q=0.2, image/jpeg;q=0.8'
negotiator.mediaTypes()
// -> ['text/html', 'image/jpeg', 'application/*']
negotiator.mediaTypes(availableMediaTypes)
// -> ['text/html', 'application/json']
negotiator.mediaType(availableMediaTypes)
// -> 'text/html'
You can check a working example at examples/accept.js.
Methods
mediaType()
Returns the most preferred media type from the client.
mediaType(availableMediaType)
Returns the most preferred media type from a list of available media types.
mediaTypes()
Returns an array of preferred media types ordered by the client preference.
mediaTypes(availableMediaTypes)
Returns an array of preferred media types ordered by priority from a list of available media types.
Accept-Language Negotiation
negotiator = new Negotiator(request)
availableLanguages = ['en', 'es', 'fr']
// Let's say Accept-Language header is 'en;q=0.8, es, pt'
negotiator.languages()
// -> ['es', 'pt', 'en']
negotiator.languages(availableLanguages)
// -> ['es', 'en']
language = negotiator.language(availableLanguages)
// -> 'es'
You can check a working example at examples/language.js.
Methods
language()
Returns the most preferred language from the client.
language(availableLanguages)
Returns the most preferred language from a list of available languages.
languages()
Returns an array of preferred languages ordered by the client preference.
languages(availableLanguages)
Returns an array of preferred languages ordered by priority from a list of available languages.
Accept-Charset Negotiation
availableCharsets = ['utf-8', 'iso-8859-1', 'iso-8859-5']
negotiator = new Negotiator(request)
// Let's say Accept-Charset header is 'utf-8, iso-8859-1;q=0.8, utf-7;q=0.2'
negotiator.charsets()
// -> ['utf-8', 'iso-8859-1', 'utf-7']
negotiator.charsets(availableCharsets)
// -> ['utf-8', 'iso-8859-1']
negotiator.charset(availableCharsets)
// -> 'utf-8'
You can check a working example at examples/charset.js.
Methods
charset()
Returns the most preferred charset from the client.
charset(availableCharsets)
Returns the most preferred charset from a list of available charsets.
charsets()
Returns an array of preferred charsets ordered by the client preference.
charsets(availableCharsets)
Returns an array of preferred charsets ordered by priority from a list of available charsets.
Accept-Encoding Negotiation
availableEncodings = ['identity', 'gzip']
negotiator = new Negotiator(request)
// Let's say Accept-Encoding header is 'gzip, compress;q=0.2, identity;q=0.5'
negotiator.encodings()
// -> ['gzip', 'identity', 'compress']
negotiator.encodings(availableEncodings)
// -> ['gzip', 'identity']
negotiator.encoding(availableEncodings)
// -> 'gzip'
You can check a working example at examples/encoding.js.
Methods
encoding()
Returns the most preferred encoding from the client.
encoding(availableEncodings)
Returns the most preferred encoding from a list of available encodings.
encodings()
Returns an array of preferred encodings ordered by the client preference.
encodings(availableEncodings)
Returns an array of preferred encodings ordered by priority from a list of available encodings.
See Also
The accepts module builds on this module and provides an alternative interface, mime type validation, and more.