Path setting is broken if elysia is started from a location that is not the directory of the package in which elysia runs (e.g. monorepo) #48
Description
I have a project with the following directory structure:
my_app/
├─ packages/
│ ├─ backend/
│ │ ├─ index.ts
│ │ ├─ package.json
│ ├─ frontend/
│ │ ├─ ....ts
│ │ ├─ package.json
├─ frontend_dist/
├─ package.json
It's a monorepo configuration, where the backend contains the Elysia server where @elysiajs/static is used and the frontend contains the frontend code (vite).
The frontend artifacts are stored in frontend_dist folder in the root directory when built and is referenced by Elysia with the following code:
import { promises as fsp } from 'node:fs';
import { Elysia } from 'elysia';
import { staticPlugin } from '@elysiajs/static';
import { html, Html } from '@elysiajs/html';
async function getManifest() {
if (process.env.NODE_ENV === 'development') {
return null;
}
const manifestPath = '../../frontend_dist/manifest.json';
if (await fsp.exists(manifestPath)) {
return JSON.parse(await fsp.readFile(manifestPath, 'utf-8'))['src/main.ts'];
} else {
return null;
}
}
function serveVite() {
if (process.env.NODE_ENV === 'development') {
return new Elysia().get('/vite/*', async ({ request }) => {
const url = new URL(request.url);
url.port = '5174';
const modifiedRequest = new Request(url.toString(), request);
return await fetch(modifiedRequest);
});
} else {
return new Elysia().use(staticPlugin({
assets: '../../frontend_dist',
prefix: '/vite',
}));
}
}
export const webServer = new Elysia()
.use(html())
.use(serveVite())
.get('/*', async ({ params, error }) => {
if (params['*'].startsWith('vite')) {
return error(404, {
message: 'Not Found',
status: 404,
});
}
const manifest = await getManifest();
return (
<html>
<head>
<title>My App</title>
{!manifest && <script type="module" src="/vite/@vite/client"></script>}
{manifest ? (
<>
{Array.isArray(manifest.css) && manifest.css.map((css: string) => (
<link rel="stylesheet" href={`/vite/${css}`} />
))}
<script type="module" src={`/vite/${manifest.file}`}></script>
</>
) : (
<>
<script type="module" src="/vite/@vite/client"></script>
<script type="module" src="/vite/src/main.ts"></script>
</>
)}
</head>
<body>
<div id="app"></div>
</body>
</html>
);
})And if I start this from the root directory of monorepo with the following command, the file is not served.
bun --filter backend start
Strangely, after navigating to packages/backend and then starting the server, it works as expected.
cd packages/backend
bun run start