React-redux type for connect does not allow mapDispatchToProps as function anymore

I’m getting the following flow error with the new react redux flow types, when using connect with a mapDispatchToProps function. The error does not occur when using an object instead.

• Either function [1] is not an object.
• Or ST [2] is not a React component.

 flow-typed/npm/react-redux_v5.x.x.js
 [2] 132│     ST: $Subtype<{[_: $Keys<Com>]: any}>

 [1]  75│ const mapDispatchToProps = (dispatch: Dispatch): DispatchProps => ({
      76│   someProp: () => dispatch(someAction()),
      77│ });

[erictaylor]

@sherwinyu no I have not. I’ve pretty much have had to do the same thing. In some cases where we could I’ve modified mapDispatchToProps to immediately return an object, which fixes the issue, however there are lots of cases where we need the dispatch function to properly map. Would be great if someone could chime in with an appropriate fix.

[erictaylor]

@amccloud I’m having the same issue as @joshuajaco and we are using a custom Dispatch type.

type Dispatch<S = State, A = Action> = (
  action: A | ThunkAction<S, A> | PromiseAction<A>,
) => any;