implementing-sagas-reducer-1.js

reducer.js

import { combineReducers } from "redux";
 
const actionTypes = {
  "FETCH_DATA_REQUEST": "FETCH_DATA_REQUEST",
  "FETCH_DATA_SUCCESS": "FETCH_DATA_SUCCESS",
  "FETCH_DATA_FAILED": "FETCH_DATA_FAILED"
};
 
const initialState = {
  name: '',
  surname: '',
  region: '',
  error: ''
};
 
const personState = (state = initialState, action) => {
  switch(action.type) {
    case actionTypes.FETCH_DATA_REQUEST:
      return state;
    case actionTypes.FETCH_DATA_SUCCESS:
      return {
        name: action.payload.name,
        surname: action.payload.surname,
        region: action.payload.region,
        error: ''
      };
    case actionTypes.FETCH_DATA_FAILED:
      return {
        ...state,
        error: action.payload
      };
    default:
      return state;
  }
}
 
export default combineReducers({
  personState
});