server.port#

• Type: number
• Default: 3000

Specify a port number for Rsbuild Server to listen.

By default, Rsbuild Server listens on port 3000 and automatically increments the port number when the port is occupied.

You can use server.port or the --port CLI param to set the port number (The priority of --port option is higher than server.port).

Example#

Set the port to 3000:

export default {
  server: {
    port: 3000,
  },
};