react-redux/src/connect/mapDispatchToProps.ts

Official React bindings for Redux

import type { Action, Dispatch } from 'redux'
import bindActionCreators from '../utils/bindActionCreators'
import { wrapMapToPropsConstant, wrapMapToPropsFunc } from './wrapMapToProps'
import { createInvalidArgFactory } from './invalidArgFactory'
import type { MapDispatchToPropsParam } from './selectorFactory'

export function mapDispatchToPropsFactory<TDispatchProps, TOwnProps>(
  mapDispatchToProps:
    | MapDispatchToPropsParam<TDispatchProps, TOwnProps>
    | undefined,
) {
  return mapDispatchToProps && typeof mapDispatchToProps === 'object'
    ? wrapMapToPropsConstant((dispatch: Dispatch<Action<string>>) =>
        // @ts-ignore
        bindActionCreators(mapDispatchToProps, dispatch),
      )
    : !mapDispatchToProps
      ? wrapMapToPropsConstant((dispatch: Dispatch<Action<string>>) => ({
          dispatch,
        }))
      : typeof mapDispatchToProps === 'function'
        ? // @ts-ignore
          wrapMapToPropsFunc(mapDispatchToProps, 'mapDispatchToProps')
        : createInvalidArgFactory(mapDispatchToProps, 'mapDispatchToProps')
}