Use Flow

[slorber]

It could be nice to have some stuff typechecked.

Redux does not offer flow types right now.

The simplest would be to define the actions as a union type and could already be a nice win.

See reduxjs/redux#290 (comment)

[quicksnap]

Personally, I had some trouble with flow. Until Redux supports it at least, it's not useful to me.

[trueter]

I highly recommend using babel-plugin-typecheck instead. Keep in mind to use the 2.x branch until babel-plugin-react-transform is updated for Babel 6.