How to react on state changes using redux-saga

actions.js

// just a helper function
const updateComponent = (component, newState) => component.setState(newState)


// 1st approach using redux-promise. Actions returns promises, so component
// can trigger actions when promise is resolved.
const handleEventPromise = (props) => (event) => {
  this.props.action({...})
  .then((payload) => updateComponent(this, {...}))
}


// 2nd approach using redux-saga. All promises are resolved inside saga.
const handleEventSaga = (props) => (event) => {
  this.props.action({...})
  // how to trigger updateComponent({...}) ?
}