Running these functions locally

[matthewmueller]

I saw from another issue that you can't really run these functions locally. What would it take to make that happen? Hard to beat the dev flow of:

go run functions/auth/main.go < event.json

Will probably work on this if it's feasible :-)

[tj]

The main reason it would be awkward locally is you'd have to build the zip each time, and unzip it each invoke too, so it's super slow. Also only the shimmed ones accept events over stdin so it would be different for python/node which is tricky too (for node it would have to node -e 'require('path').handle(event)' or something weird).

Ultimately I think there's no replacement for just writing tests and libraries instead :D if anything I think the lack of this feature might be a good thing that way, it kind of forces you to write tests. I think that helps discourage people from writing too much logic in the functions themselves too, where it really doesn't belong IMO.