sagas-vs-thunks.js

// Sagas
import { call, put } from 'redux-saga/effects'
import api from 'services/api'

export function* fetchUser(action) {
  const { data } = yield call(api.get, `/user/${action.id}`)
  yield put({ type: "@user/FETCH_SUCCEEDED", data })
}

// Thunks
import api from 'services/api'

export function fetchUser(id) {
  return dispatch => {
    return api.get(`/user/${id}`)
      .then(({ data }) => {
        dispatch({ type: "@user/FETCH_SUCCEEDED", data });
      })
  }
}