Flow types?

[tmcw]

Is there any way to enforce types for the action creators in mapDispatchToProps, whether in react-redux core or a contrib? Would it be possible to annotate propTypes to enforce function signatures, or add an interface? I'm working on a large application that benefitted a lot from Flow annotations on action creators, and no longer can because of the dispatch/props disconnect.

[gaearon]

I don't know enough about Flow to answer this. Your best bet is to investigate this and report the results :-)

[tmcw]

Done a bit of research and seeing two options:

• If react-redux is to be type-annotated, it's blocked by default support in type destructuring because of connectL43
• For an external declaration to work, I think the upstream blocker is Object type spread support.

I'm looking into Object spread support to see if it's something I could contribute, but, y'know, OCaml has a bit of a learning curve :)

[nmn]

perhaps connected: #389

[kristian-puccio]

If you haven't seen this is worth a look.
http://makeitopen.com/tutorials/building-the-f8-app/testing/

Also there are some flow definitions here:
https://github.com/flowtype/flow-typed

[vicapow]

@timdorr could you leave a comment why the task was closed? If it's a duplicate / resolved could you link to the related ticket or if it's a "wont fix" could you describe why?

[gaearon]

Yea this was a bit odd. We definitely want Flow types for this. I just don't know enough about Flow at this point to say what next steps should be. There is already a PR to flowtyped, right?

[gaearon]

@timdorr For future reference, please comment with a reason for closing so we know what the intention was 😉

[timdorr]

Sorry, I didn't put a link to the appropriate PR. Efforts are ongoing over there: #389 (and reduxjs/redux#1887 is related too)

[gaearon]

Thanks!