why my redux state not updating

Question

state not updating.when action is dispatched the state should update to isAuthenticated to true..but the state not updating..redux returning the initial state not the updated state.

export function setCurrentUser(user) {
      console.log(user);
      return {
        type: "SET_CURRENT_USER",
        user
      };
    }

   ...
    export function login(userData) {
      return dispatch => {
        return axios.post('/user/auth',userData).then((res) => {
          const { status, sessionId, username, error} = res.data;
          if(status === "success"){
            dispatch(setCurrentUser(sessionId));
          }else {
            dispatch(invalidUser(error));
          }
        });
      }
    }

//reducers

    import { SET_CURRENT_USER, INVALID_USER } from "../actions/types";
    import isEmpty from "lodash/isEmpty";

    const initialState = {
      isAuthenticated : false,
      user: {},
      error:{}
    };

    export default (state = initialState, action) => {
      switch(action.type){
        case SET_CURRENT_USER:
        return {
          ...state,
         isAuthenticated: !isEmpty(action.user),
         user:action.user
        }
        ...
        default: return state;
      }
    }

//component

onSubmit(e){
    e.preventDefault();
      this.setState({ errors: {}, isLoading:true });
      this.props.login(this.state).then(
      (res) => {
        console.log(this.props.userData);
        if(this.props.userData.isAuthenticated)
          this.context.router.push("greet");
        },

(err) => this.setState({ errors: err.response.data, isLoading: false }) );

  }

.....

function mapStateToProps(state) {
  return {
    userData: state.authReducers
  };
}

export default connect(mapStateToProps, { login })(LoginForm);

Solution

You are not updating the payload data in your reducer

export default (state = initialState, action) => {
      switch(action.type){
        case SET_CURRENT_USER:
        return {...state, user: action.payload} //update user here
        }
        ...
        default: return state;
      }
    }

the above code uses es6 features and the assumption made is isAuthenticated and error are part of the initial state.

You are just returning the same JSON which is why your state is not updating.

Comments

[PrudhviD]

return { 14 | ...state, > 15 | {user:action.user} | ^ 16 | 17 | } syntax error

[StateLess]

can you elaborate ?

[PrudhviD]

i tried to excute your code..but getting syntax error

[StateLess]

where? which line? are you using es6, babel?

[PrudhviD]

return {...state, >{user: action.payload}} //yes am using es6 babel

[StateLess]

hey what is > doing there

[StateLess]

Small typo in there, check now

[StateLess]

console some value in switch case of SET_CURRENT_USER and check if you can see that

[PrudhviD]

console not returning

[StateLess]

If you are not seeing console then it seems reducers are not invocating.try debugging to find why it is happening

[PrudhviD]

its working now changed case set_current_user to case "set_current_user" but i have a doubt why the first case didnt work ..i have imported the types too