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
..

entities NPM version Downloads Node.js CI

Encode & decode HTML & XML entities with ease & speed.

Features

  • 😇 Tried and true: entities is used by many popular libraries; eg. htmlparser2, the official AWS SDK and commonmark use it to process HTML entities.
  • Fast: entities is the fastest library for decoding HTML entities (as of April 2022); see performance.
  • 🎛 Configurable: Get an output tailored for your needs. You are fine with UTF8? That'll save you some bytes. Prefer to only have ASCII characters? We can do that as well!

How to…

…install entities

npm install entities

…use entities

const entities = require("entities");

// Encoding
entities.escapeUTF8("& ü"); // "& ü"
entities.encodeXML("& ü"); // "& ü"
entities.encodeHTML("& ü"); // "& ü"

// Decoding
entities.decodeXML("asdf & ÿ ü '"); // "asdf & ÿ ü '"
entities.decodeHTML("asdf & ÿ ü '"); // "asdf & ÿ ü '"

Performance

This is how entities compares to other libraries on a very basic benchmark (see scripts/benchmark.ts, for 10,000,000 iterations; lower is better):

Library Version decode perf encode perf escape perf
entities 3.0.1 1.418s 6.786s 2.196s
html-entities 2.3.2 2.530s 6.829s 2.415s
he 1.2.0 5.800s 24.237s 3.624s
parse-entities 3.0.0 9.660s N/A N/A

FAQ

What methods should I actually use to encode my documents?

If your target supports UTF-8, the escapeUTF8 method is going to be your best choice. Otherwise, use either encodeHTML or encodeXML based on whether you're dealing with an HTML or an XML document.

You can have a look at the options for the encode and decode methods to see everything you can configure.

When should I use strict decoding?

When strict decoding, entities not terminated with a semicolon will be ignored. This is helpful for decoding entities in legacy environments.

Why should I use entities instead of alternative modules?

As of April 2022, entities is a bit faster than other modules. Still, this is not a very differentiated space and other modules can catch up.

More importantly, you might already have entities in your dependency graph (as a dependency of eg. cheerio, or htmlparser2), and including it directly might not even increase your bundle size. The same is true for other entity libraries, so have a look through your node_modules directory!

Does entities support tree shaking?

Yes! entities ships as both a CommonJS and a ES module. Note that for best results, you should not use the encode and decode functions, as they wrap around a number of other functions, all of which will remain in the bundle. Instead, use the functions that you need directly.


Acknowledgements

This library wouldn't be possible without the work of these individuals. Thanks to

  • @mathiasbynens for his explanations about character encodings, and his library he, which was one of the inspirations for entities
  • @inikulin for his work on optimized tries for decoding HTML entities for the parse5 project
  • @mdevils for taking on the challenge of producing a quick entity library with his html-entities library. entities would be quite a bit slower if there wasn't any competition. Right now entities is on top, but we'll see how long that lasts!

License: BSD-2-Clause

Security contact information

To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure.

entities for enterprise

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