Files
Rob Hogan bb3ef784e3 Remove HTTP keepAliveTimeout workaround not needed since Node.js 12 (#52561)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/52561

The removed code comment is pretty clear that this workaround is in place for a specific bug, which was closed in a Node.js 8.x minor: https://github.com/nodejs/node/issues/13391

A related issue descibed a problem that still existed in Node 10:
https://github.com/nodejs/node/issues/27363

Subsequent comments reporting problems with newer Node.js versions all seem to relate to mismatched configuration with load balancers, not directly relevant to Metro.

Reproducers for the original bugs no longer repro on new Node.js (tested with 22.14), so I think it's safe to conclude this is fixed.

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D78158427

fbshipit-source-id: 0be5dbc4334ac7b0bbccde44a840caac43deb4df
2025-07-11 11:03:29 -07:00
..
2025-07-06 04:30:38 -07:00

@react-native/community-cli-plugin

This is an internal dependency of React Native. Please don't depend on it directly.

CLI entry points supporting core React Native development features.

Formerly @react-native-community/cli-plugin-metro.

Commands

start

Start the React Native development server.

Usage

npx @react-native-community/cli start [options]

Options

Option Description
--port <number> Set the server port.
--host <string> Set the server host.
--projectRoot <path> Set the path to the project root.
--watchFolders <list> Specify additional folders to be added to the watch list.
--assetPlugins <list> Specify additional asset plugins.
--sourceExts <list> Specify additional source extensions to bundle.
--max-workers <number> Set the maximum number of workers the worker-pool will spawn for transforming files. Defaults to the number of the cores available on your machine.
--transformer <string> Specify a custom transformer.
--reset-cache Remove cached files.
--custom-log-reporter-path <string> Specify a module path exporting a replacement for TerminalReporter.
--https Enable HTTPS connections.
--key <path> Specify path to a custom SSL key.
--cert <path> Specify path to a custom SSL cert.
--config <string> Path to the CLI configuration file.
--no-interactive Disable interactive mode.
--client-logs [Deprecated] Enable plain text JavaScript log streaming for all connected apps.

bundle

Build the bundle for the provided JavaScript entry file.

Usage

npx @react-native-community/cli bundle --entry-file <path> [options]

Options

Option Description
--entry-file <path> Set the path to the root JavaScript entry file.
--platform <string> Set the target platform (either "android" or "ios"). Defaults to "ios".
--transformer <string> Specify a custom transformer.
--dev [boolean] If false, warnings are disabled and the bundle is minified. Defaults to true.
--minify [boolean] Allows overriding whether bundle is minified. Defaults to false if --dev is set. Disabling minification can be useful for speeding up production builds for testing purposes.
--bundle-output <string> Specify the path to store the resulting bundle.
--bundle-encoding <string> Specify the encoding for writing the bundle (https://nodejs.org/api/buffer.html#buffer_buffer).
--resolver-option <string...> Custom resolver options of the form key=value. URL-encoded. May be specified multiple times.
--sourcemap-output <string> Specify the path to store the source map file for the resulting bundle.
--sourcemap-sources-root <string> Set the root path for source map entries.
--sourcemap-use-absolute-path Report SourceMapURL using its full path.
--max-workers <number> Set the maximum number of workers the worker-pool will spawn for transforming files. Defaults to the number of the cores available on your machine.
--assets-dest <string> Specify the directory path for storing assets referenced in the bundle.
--reset-cache Remove cached files.
--read-global-cache Attempt to fetch transformed JS code from the global cache, if configured. Defaults to false.
--config <string> Path to the CLI configuration file.

Contributing

Changes to this package can be made locally and tested against the rn-tester app, per the Contributing guide. During development, this package is automatically run from source with no build step.