Demonstrate Express Having Stack Trace Issues With TypeScript

This repo can be used as a starting point to add better stack trace support to depd, and eventually express as a whole see: nodejs-depd/issues/39.

1. install dependencies, npm i.
2. run the server, npm run serve.
3. hit the route, /exceptional, note that the lines in the stack trace do not map back to src/index.ts.

Reproducing error in node/issues/29994

You can reproduce the error discussed in node/issues/29994, by running:

NODE_OPTIONS=--enable-source-maps npm run serve

Ideal Output

Here's output that, in my opinion, would be good for us to move towards:

Error: my stack trace stinks
    at /Users/bencoe/oss/express-ts-errors/build/src/index.js:14:15
        -> /Users/bencoe/oss/express-ts-errors/src/index.ts:19:11

☝️ see how it includes the correct line in the .ts file, along with the transpiled line.

Userland source-map-support

There is a userland module called source-map-support, which does work with express.

You can try this out by running:

npm run serve-source-map-suppport

This module does seem to work in conjunction with depd, you can test this out by hitting the endpoint /success (which is "deprecated").

Error: my stack trace stinks
    at /Users/bencoe/oss/express-ts-errors/src/index.ts:19:11