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.
153 lines
4.2 KiB
Markdown
153 lines
4.2 KiB
Markdown
# ansi-styles [](https://travis-ci.org/chalk/ansi-styles)
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> [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code#Colors_and_Styles) for styling strings in the terminal
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You probably want the higher-level [chalk](https://github.com/chalk/chalk) module for styling your strings.
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<img src="screenshot.svg" width="900">
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## Install
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```
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$ npm install ansi-styles
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```
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## Usage
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```js
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const style = require('ansi-styles');
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console.log(`${style.green.open}Hello world!${style.green.close}`);
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// Color conversion between 16/256/truecolor
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// NOTE: If conversion goes to 16 colors or 256 colors, the original color
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// may be degraded to fit that color palette. This means terminals
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// that do not support 16 million colors will best-match the
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// original color.
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console.log(style.bgColor.ansi.hsl(120, 80, 72) + 'Hello world!' + style.bgColor.close);
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console.log(style.color.ansi256.rgb(199, 20, 250) + 'Hello world!' + style.color.close);
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console.log(style.color.ansi16m.hex('#abcdef') + 'Hello world!' + style.color.close);
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```
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## API
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Each style has an `open` and `close` property.
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## Styles
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### Modifiers
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- `reset`
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- `bold`
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- `dim`
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- `italic` *(Not widely supported)*
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- `underline`
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- `inverse`
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- `hidden`
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- `strikethrough` *(Not widely supported)*
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### Colors
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- `black`
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- `red`
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- `green`
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- `yellow`
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- `blue`
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- `magenta`
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- `cyan`
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- `white`
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- `blackBright` (alias: `gray`, `grey`)
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- `redBright`
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- `greenBright`
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- `yellowBright`
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- `blueBright`
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- `magentaBright`
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- `cyanBright`
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- `whiteBright`
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### Background colors
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- `bgBlack`
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- `bgRed`
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- `bgGreen`
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- `bgYellow`
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- `bgBlue`
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- `bgMagenta`
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- `bgCyan`
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- `bgWhite`
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- `bgBlackBright` (alias: `bgGray`, `bgGrey`)
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- `bgRedBright`
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- `bgGreenBright`
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- `bgYellowBright`
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- `bgBlueBright`
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- `bgMagentaBright`
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- `bgCyanBright`
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- `bgWhiteBright`
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## Advanced usage
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By default, you get a map of styles, but the styles are also available as groups. They are non-enumerable so they don't show up unless you access them explicitly. This makes it easier to expose only a subset in a higher-level module.
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- `style.modifier`
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- `style.color`
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- `style.bgColor`
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###### Example
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```js
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console.log(style.color.green.open);
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```
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Raw escape codes (i.e. without the CSI escape prefix `\u001B[` and render mode postfix `m`) are available under `style.codes`, which returns a `Map` with the open codes as keys and close codes as values.
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###### Example
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```js
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console.log(style.codes.get(36));
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//=> 39
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```
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## [256 / 16 million (TrueColor) support](https://gist.github.com/XVilka/8346728)
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`ansi-styles` uses the [`color-convert`](https://github.com/Qix-/color-convert) package to allow for converting between various colors and ANSI escapes, with support for 256 and 16 million colors.
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The following color spaces from `color-convert` are supported:
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- `rgb`
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- `hex`
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- `keyword`
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- `hsl`
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- `hsv`
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- `hwb`
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- `ansi`
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- `ansi256`
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To use these, call the associated conversion function with the intended output, for example:
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```js
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style.color.ansi.rgb(100, 200, 15); // RGB to 16 color ansi foreground code
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style.bgColor.ansi.rgb(100, 200, 15); // RGB to 16 color ansi background code
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style.color.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
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style.bgColor.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
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style.color.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color foreground code
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style.bgColor.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color background code
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```
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## Related
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- [ansi-escapes](https://github.com/sindresorhus/ansi-escapes) - ANSI escape codes for manipulating the terminal
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## Maintainers
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- [Sindre Sorhus](https://github.com/sindresorhus)
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- [Josh Junon](https://github.com/qix-)
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## For enterprise
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Available as part of the Tidelift Subscription.
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The maintainers of `ansi-styles` 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.](https://tidelift.com/subscription/pkg/npm-ansi-styles?utm_source=npm-ansi-styles&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
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