# @react-native-module/node-libs-react-native > Node core modules for React Native Latest version **1.4.1** (published 2022-08-04) · MIT license · 0 weekly downloads ## Install ```sh npm install @react-native-module/node-libs-react-native pnpm add @react-native-module/node-libs-react-native yarn add @react-native-module/node-libs-react-native bun add @react-native-module/node-libs-react-native ``` ## Health **Score 15/100 (F)** — status: abandoned. Positive: no vulnerabilities. Warnings: low downloads; no types; no esm support. Negative: abandoned; low maintenance score. ## Facts | | | |---|---| | Version | 1.4.1 | | Published | 2022-08-04 | | First published | 2022-07-20 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | none | | Module format | CommonJS | | Dependencies | 23 | | Unpacked size | 17.8 KB | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 0 | | Author | sacru2red | | Maintainers | sacru2red | ## Links - npm: https://www.npmjs.com/package/@react-native-module/node-libs-react-native - Repository: https://github.com/react-native-module/node-libs-react-native - Issues: https://github.com/react-native-module/node-libs-react-native/issues - npm.io page: https://npm.io/package/@react-native-module/node-libs-react-native ## Dependencies (23) - [url](https://npm.io/package/url.md) ^0.11.0 - [util](https://npm.io/package/util.md) ^0.10.3 - [assert](https://npm.io/package/assert.md) ^1.4.1 - [buffer](https://npm.io/package/buffer.md) ^6.0.3 - [events](https://npm.io/package/events.md) ^1.0.0 - [process](https://npm.io/package/process.md) ^0.11.0 - [punycode](https://npm.io/package/punycode.md) ^2.1.0 - [js-base64](https://npm.io/package/js-base64.md) ^3.7.2 - [stream-http](https://npm.io/package/stream-http.md) ^2.3.1 - [os-browserify](https://npm.io/package/os-browserify.md) ^0.3.0 - [domain-browser](https://npm.io/package/domain-browser.md) ^1.1.1 - [string_decoder](https://npm.io/package/string_decoder.md) ^1.0.3 - [tty-browserify](https://npm.io/package/tty-browserify.md) 0.0.0 - [browserify-zlib](https://npm.io/package/browserify-zlib.md) ^0.2.0 - [path-browserify](https://npm.io/package/path-browserify.md) 0.0.0 - [querystring-es3](https://npm.io/package/querystring-es3.md) ^0.2.0 - [readable-stream](https://npm.io/package/readable-stream.md) ^3.6.0 - [https-browserify](https://npm.io/package/https-browserify.md) ^1.0.0 - [timers-browserify](https://npm.io/package/timers-browserify.md) ^2.0.2 - [console-browserify](https://npm.io/package/console-browserify.md) ^1.1.0 - [constants-browserify](https://npm.io/package/constants-browserify.md) ^1.0.0 - [@react-native-module/crypto](https://npm.io/package/@react-native-module/crypto.md) ^4.0.1 - [@react-native-module/randombytes](https://npm.io/package/@react-native-module/randombytes.md) ^4.0.0 ## Recent versions - 1.4.1 (latest) — 2022-08-04 - 1.4.1-0 (next) — 2022-08-04 - 1.4.0 — 2022-08-04 - 1.4.0-0 — 2022-08-04 - 1.3.0 — 2022-08-04 - 1.2.4-16 — 2022-08-04 - 1.2.4-15 — 2022-08-04 - 1.2.4-14 — 2022-08-04 - 1.2.4-13 — 2022-08-04 - 1.2.4-12 — 2022-07-25 - 1.2.4-11 — 2022-07-25 - 1.2.4-10 — 2022-07-25 - 1.2.4-9 — 2022-07-25 - 1.2.4-8 — 2022-07-25 - 1.2.4-6 — 2022-07-25 - … 8 more at https://npm.io/package/@react-native-module/node-libs-react-native/versions ## README # @react-native-module/node-libs-react-native This package provides React Native compatible implementations of Node core modules like `stream` and `http`. This is a fork of [node-libs-browser][] with a few packages swapped to be compatible in React Native. [node-libs-browser]: https://www.npmjs.com/package/node-libs-browser ## Installation This module has peerDependency "react", "react-native", "@react-native-module/pbkdf2" ``` npm install --save @react-native-module/node-libs-react-native @react-native-module/pbkdf2 ``` ``` yarn add @react-native-module/node-libs-react-native @react-native-module/pbkdf2 ``` ## Usage This package exports a mapping of absolute paths to each module implementation, keyed by module name. Modules without React Native compatible implementations are `null`. These modules can be used with React Native Packager's `metro.config.js` or Webpack's `resolve.alias`. ### Usage with React Native Packager Add a `metro.config.js` file in the root directory of your React Native project and set `resolver.extraNodeModules`: ```js // metro.config.js module.exports = { resolver: { extraNodeModules: require("@react-native-module/node-libs-react-native"), }, }; ``` For more information, see this post on [Node core modules in React Native][post]. [post]: https://gist.github.com/parshap/e3063d9bf6058041b34b26b7166fd6bd ### Support additional packages Some package not in extraNodeModules, but react-native's runtime run much slow or cannot [pbkdf2](https://github.com/crypto-browserify/pbkdf2) is so slow in react-native's runtime [randombytes](https://github.com/crypto-browserify/randombytes) is complain "Error: Secure random number generation is not supported by this browser. \nUse Chrome, Firefox or Internet Explorer 11" If you wanna solve this Issue follow Steps 1. Install babel-plugin-module-resolver ``` npm install --save-dev babel-plugin-module-resolver ``` ``` yarn add -D babel-plugin-module-resolver ``` 2. Edit babel.config.js ```js // add lines const nativeAlias = require('@react-native-module/node-libs-react-native/babelResolvers') const nativePlugins = [ [ require.resolve('babel-plugin-module-resolver'), { alias: { ...nativeAlias }, }, ] ] // add plugins to env (If you are not env, just add plugins) module.exports = { presets: ['module:metro-react-native-babel-preset'], env: { production: { plugins: [...nativePlugins, 'react-native-paper/babel'], }, development: { plugins: [...nativePlugins] }, web: { plugins: [...myWebPlugins] } }, ... } ``` 3. And Just Run it ### Globals Node has certain globals that modules may expect, such as `Buffer` or `process`. React Native does not provide these globals. The [`node-libs-react-native/globals`][globals] module in this package will shim the global environment to add these globals. Just require (or import) this module in your app before anything else. [globals]: ./globals.js ```js require("node-libs-react-native/globals"); // ... require("./app.js"); ``` ## Modules The following are the module implementations provided by this package. Some modules also have a "mock" implementation provided in the `mock` directory. These are replacements with minimal functionality. | Module | RN-compatible | Mock | | :------------: | :---------------------------------------------------------------------------------------: | :-----------------------------: | | assert | [defunctzombie/commonjs-assert](https://github.com/defunctzombie/commonjs-assert) | --- | | buffer | [feross/buffer](https://github.com/feross/buffer) | [buffer.js](./mock/buffer.js) | | child_process | --- | --- | | cluster | --- | --- | | console | [Raynos/console-browserify](https://github.com/Raynos/console-browserify) | [console.js](./mock/console.js) | | constants | [juliangruber/constants-browserify](https://github.com/juliangruber/constants-browserify) | --- | | crypto | [mvayngrib/react-native-crypto](https://github.com/mvayngrib/react-native-crypto) | --- | | dgram | --- | --- | | dns | --- | [dns.js](./mock/dns.js) | | domain | [bevry/domain-browser](https://github.com/bevry/domain-browser) | --- | | events | [Gozala/events](https://github.com/Gozala/events) | --- | | fs | --- | --- | | http | [jhiesey/stream-http](https://github.com/jhiesey/stream-http) | --- | | https | [substack/https-browserify](https://github.com/substack/https-browserify) | --- | | module | --- | --- | | net | --- | [net.js](./mock/net.js) | | os | [CoderPuppy/os-browserify](https://github.com/CoderPuppy/os-browserify) | --- | | path | [substack/path-browserify](https://github.com/substack/path-browserify) | --- | | process | [shtylman/node-process](https://github.com/shtylman/node-process) | [process.js](./mock/process.js) | | punycode | [bestiejs/punycode.js](https://github.com/bestiejs/punycode.js) | --- | | querystring | [mike-spainhower/querystring](https://github.com/mike-spainhower/querystring) | --- | | readline | --- | --- | | repl | --- | --- | | stream | [nodejs/readable-stream](https://github.com/nodejs/readable-stream) | --- | | string_decoder | [rvagg/string_decoder](https://github.com/rvagg/string_decoder) | --- | | sys | [defunctzombie/node-util](https://github.com/defunctzombie/node-util) | --- | | timers | [jryans/timers-browserify](https://github.com/jryans/timers-browserify) | --- | | tls | --- | [tls.js](./mock/tls.js) | | tty | [substack/tty-browserify](https://github.com/substack/tty-browserify) | [tty.js](./mock/tty.js) | | url | [defunctzombie/node-url](https://github.com/defunctzombie/node-url) | --- | | util | [defunctzombie/node-util](https://github.com/defunctzombie/node-util) | --- | | vm | --- | [vm.js](./mock/vm.js) | | zlib | [devongovett/browserify-zlib](https://github.com/devongovett/browserify-zlib) | --- | ## Other React Native Modules These are other React Native packages that implement Node core related modules. They are not included in node-libs-react-native, but you may find them useful separately. ### `dgram` [react-native-udp][] implements Node's `dgram` API, but is not included here due to its native implementation and need to use `react-native link`. [react-native-udp]: https://github.com/tradle/react-native-udp ### `fs` [react-native-fs][] implement's Node's `fs` API, but is not included here due to its native implementation and need to use `react-native link`. [react-native-fs]: https://github.com/itinance/react-native-fs [react-native-level-fs][] provides an alternative pure JavaScript implementation, using AsyncStorage as the underlying storage mechanism. [react-native-level-fs]: https://github.com/tradle/react-native-level-fs ### `net` [react-native-tcp][] implement's Node's `net` API, but is not included here due to its native implementation and need to use `react-native link`. [react-native-tcp]: https://github.com/PeelTechnologies/react-native-tcp ## Credit This is a fork of [node-libs-browser][] with minor modifications and packages swapped out for React Native implementations. Thanks to those package authors for doing the hard work. ## License MIT --- _Source: https://npm.io/package/@react-native-module/node-libs-react-native · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._