Source code exposed through URL

[Pittvandewitt]

Summary

I have a simple node.js project written in TypeScript with a single serverless function inside the api folder. No framework used and nothing specified in the vercel.json config. Everything seems to work as expected, but there is an issue where I can access all my source files by entering the right URL. Example: example.vercel.app/api/index.ts. When entering the URL, the file starts downloading. I find this rather alarming. Is this normal behaviour for serverless functions or am I missing something? I have not found anything mentioning this in the docs or on any forum, except for the Directory listing option under settings - advanced, but this only makes things worse.

Example

No response

Steps to Reproduce

Enter domain/path_to_source_file for a serverless function project and the file starts downloading immediately.

[ntubrian]

if you want to exploit vercel to serve as a backend server, you have to rewrite all the request under any path to the root

{
  "rewrites": [{ "source": "/(.*)", "destination": "/" }]
}

FYI
https://dev.to/arindam_1729/react-router-not-working-on-vercel-3be6

and make some adjust to output directory

[github-actions[bot]]

This discussion was automatically locked because the community moved to a new site. Please join us at vercel.community