Rspack CLI comes with a built-in @rspack/dev-server
for development and debugging. Its capabilities are similar to webpack-dev-server
, including features like Hot Module Replacement (HMR), proxy server and more.
By default, Rspack enables HMR in dev mode. You can disable HMR by configuring the devServer.hot
option in rspack.config.js
.
HMR is not working for CSS when output.cssFilename
contains [hash]
or [contenthash]
Rspack has a built-in simple proxy server. You can enable the proxy server by configuring the devServer.proxy
option in rspack.config.js
. The devServer internally uses http-proxy-middleware to implement the proxy function. For example, you can proxy /api
to http://localhost:3000
as follows:
For more devServer configuration options, please refer to devServer.