react-native-start

Start the React Native Metro bundler server

TLDR

Start Metro bundler

$ react-native start

Start on specific port

$ react-native start --port [8082]

Start and reset cache

$ react-native start --reset-cache

Start with verbose output

$ react-native start --verbose

Start bound to a specific host

$ react-native start --host [0.0.0.0]

react-native start launches the Metro JavaScript bundler, a development server that compiles and serves JavaScript bundles to React Native apps running on simulators, emulators, or physical devices. It watches source files for changes and pushes updates to connected apps via hot reloading, enabling rapid development without full rebuilds.The bundler listens on port 8081 by default and can be customized with --port. The --reset-cache flag clears the bundler's transformation cache, which is useful when resolving stale module resolution issues or after changing configuration. Use --host 0.0.0.0 to make the server accessible from other devices on the network, such as physical phones on the same Wi-Fi.

PARAMETERS

--port port

Server port (default 8081).

--reset-cache

Clear bundler cache.

--verbose

Verbose output.

--host host

Server hostname.

--https

Enable HTTPS.

--config path

Metro config file.

--experimental-debugger

Enable the new JS debugger (Hermes debugger).

react-native-start

Start the React Native Metro bundler server

TLDR

SYNOPSIS

DESCRIPTION

PARAMETERS

SEE ALSO