Description
What version of Elysia.JS is running?
1.0.0
What platform is your computer?
Linux 5.15.133.1-microsoft-standard-WSL2 x86_64 x86_64
What steps can reproduce the bug?
Create a basic Elysia server like this:
import { Elysia } from 'elysia';
const app = new Elysia()
.get('/', () => 'Landing')
.listen(8080)
console.log(
`🦊 API is running at ${app.server?.hostname}:${app.server?.port}`,
);
export default app;Then run the server via bun index.ts.
What is the expected behavior?
Server should run with no errors.
What do you see instead?
Server crashes with:
bun run index.ts
6 | if(typeof entryNamespace?.default?.fetch === 'function') {
7 | Bun.serve(entryNamespace.default);
8 | }
9 | }, reportError);
10 | } else if (typeof entryNamespace?.default?.fetch === 'function') {
11 | Bun.serve(entryNamespace.default);
^
EADDRINUSE: Failed to start server. Is port 8080 in use?
syscall: "listen"
at bun:main:11:4
The problem seems to be that doing export default app in Elysia 1.0.0 causes a separate listen call to be executed.
Removing export default app makes the issue go away, but this means you can't import the file for the purpose of unit testing as shown here.
Removing listen(8080) also makes the issue go away, but causes app.server not to be defined, so the console message prints: API is running at undefined:undefined instead.
I can also remove export default app and change const app = ... to export const app = ... to fix this, and I suppose this is what you recommend to do, but this behavior was not expected (or documented) so I thought I'd log it.
Additional information
No response