@toolpad/utils/dist/http.js

Shared utilities used by Toolpad packages.

// src/http.ts
import * as http from "http";
import invariant from "invariant";
async function listen(handler, port) {
  const server = typeof handler === "function" ? http.createServer(handler) : handler;
  let app;
  await new Promise((resolve, reject) => {
    app = server.listen(port);
    app.once("listening", resolve);
    app.once("error", reject);
  });
  const address = app?.address();
  invariant(address && typeof address === "object", "expected address to be an AddressInfo object");
  return {
    port: address.port,
    async close() {
      await new Promise((resolve, reject) => {
        if (app) {
          app.close((err) => {
            if (err) {
              reject(err);
            } else {
              resolve();
            }
          });
        } else {
          resolve();
        }
      });
    }
  };
}
export {
  listen
};
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