function

bun.serve

function serve<WebSocketData = undefined, R extends string = never>(

options: Options<WebSocketData, R>

): Server<WebSocketData>;

Bun.serve starts a high-performance HTTP server with built-in routing. Routes can be static responses, handler functions, or per-method handler objects, with type-safe path parameters.

@param options

Server configuration options

Basic Usage

Bun.serve({
  port: 3000,
  fetch(req) {
    return new Response("Hello World");
  }
});