Cannot read property 'filename' of undefined

[Fi1osof]

prometheus-api-metrics/src/index.js:5:73

node started with --experimental-modules, there no module object. Path.dirname(module.parent.filename)

Maybe use dir: process.cwd() instead?

[carlossuds]

I'm having the sabe problem. DId you find any solution?

[Fi1osof]

@carlossuds, sorry, no. I do not use this any more.

[alucryd]

Still a thing unfortunately, not well-versed enough in JS yet, but if I find something I'll make a PR. In the meantime, express-prometheus-middleware works for me, so you can use that on instead.

Edit: You can use this trick https://dev.to/jimthedev/typeerror-cannot-read-property-filename-of-undefined-in-es-modules-in-node-14-and-greater-6ia