React Redux Reducer triggered but not changing state

1
votes

I am trying to set up app state with authenticated: true and user data. Reducer gets to be triggered (I can see console.log) but it is returning initial state (isAuthenticated: false, user: {})

Thunk is working fine as far as I know

Props I am getting in component is {isAuthenticated: false, user{}}

I have done stuff like this before just like this so I am not sure why is this happening 

import { AUTHENTICATED } from '../actions/types'

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

export default function(state = initialState, action) {
    switch (action.type) {
        case AUTHENTICATED:
            console.log(action.payload)
            return {
                ...state,
                isAuthenticated: true,
                user: action.payload.user
            }

        default:
            return state
    }
}

action creator user.js

import axios from 'axios';
import history from '../history';
import config from '../config'
import { AUTHENTICATED } from './types';

export function authUser(token){
   return function(dispatch){
      const data = {"token": token}
      axios.post(`${config.api_url}/authuser`, data)
         .then((res) => {
            dispatch({type: AUTHENTICATED, payload: res.data})
         })
         .catch((err) => console.log(err))
   }
}

component dashboard.js

import React, { Component } from 'react';
import { connect } from 'react-redux';
import history from '../history';
import * as actions from '../actions/memberActions';

   class Dashboard extends Component {

      componentWillMount(){
            const token = window.localStorage.getItem('token');
               if(!token){
                  history.push('/')
               }else{
                  this.props.authUser(token);
                  console.log(this.props.user);
         }

      };
      render() {
         return (
            <div>
               <h2>This will be a dashboard page</h2>
               <p>There should be something here:{ this.props.authenticated }</p>
               <h1>OK</h1>

            </div>
         )
      }
   }

function mapStateToProps(state){
   return {
      user: state.user
   }

}

export default connect(mapStateToProps, actions)(Dashboard);
3
reactjsreduxreducers
To format code, every line must begin with 4 extra spaces. You can do this easily by highlighting the code block and pressing Ctrl-K. – Code-Apprentice
With that said, please edit your question to show a minimal reproducible example. – Code-Apprentice
please show code which you are getting that value. – Alex
Please do a console.log before this line dispatch({type: AUTHENTICATED, payload: res.data}). It could be that data is coming blank. – Christopher Francisco
No console.log in Action Creator comes back nicely with data from API. No problem there – eddbreuer

3 Answers

2
votes

You're checking props.user in componentWillMount, which doesn't show your updates. Instead check the state change in your render method, or in another life-cycle handler method like componentWillReceiveProps.

1
votes

Your code should be something like this

export default function(state = initialState, action) {
    switch (action.type) {
        case AUTHENTICATED:
            console.log(action.payload)
            return state =  {
                ...state,
                isAuthenticated: true,
                user: action.payload.user
            }

        default:
            return state
    }
}
0
votes

From the looks of it, seems like your res.data object, in dispatch({type: AUTHENTICATED, payload: res.data}) does not have an user property.

So when you do user: action.payload.user you're basically saying user: undefined.

Please post your console.log(res.data) to see if this is the problem.