RadSystems 9.2.0 generates Express 4 style routes incompatible with Express 5

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1

Hi,

I’m using RadSystems Studio 9.2.0 to generate a Node.js backend.

According to the release notes, this version uses Express 5, but the generated controllers still contain route definitions that are compatible with Express 4 only, for example:

router.get(['/', '/index/:fieldname?/:fieldvalue?'], async (req, res) => {

This syntax uses optional parameters (?), which are no longer supported in Express 5 (due to changes in path-to-regexp).

As a result, the application crashes at startup with an error like:

PathError [TypeError]: Unexpected ? at index ...

To make it work, I have to manually rewrite the routes like this:

router.get('/', handler);
router.get('/index', handler);
router.get('/index/:fieldname', handler);
router.get('/index/:fieldname/:fieldvalue', handler);

So it seems there is a mismatch between:

  • the Express version used (v5)

  • and the route syntax generated by templates (Express 4 style)

Suggestion

It would be great if:

  • templates are updated to generate Express 5 compatible routes

  • or an option is provided to select Express 4 vs Express 5 compatibility

Thanks!