Redux action ajax result not dispatched to reducer - ajax

Question

I just get to experiment with Redux and I know that middleware is essential to make ajax calls. I've installed redux-thunk and axios package separately and tried to hook my result as a state and render the ajax result to my component. However my browser console displays an error and my reducer couldn't grab the payload.
The error:
Uncaught Error: Actions must be plain objects. Use custom middleware for async actions.
This is part of my code and how the middleware is hooked up:
//after imports
const logger = createLogger({
level: 'info',
collapsed: true,
});
const router = routerMiddleware(hashHistory);
const enhancer = compose(
applyMiddleware(thunk, router, logger),
DevTools.instrument(),
persistState(
window.location.href.match(
/[?&]debug_session=([^&]+)\b/
)
)
// store config here...
my action:
import axios from 'axios';
export const SAVE_SETTINGS = 'SAVE_SETTINGS';
const url = 'https://hidden.map.geturl/?with=params';
const request = axios.get(url);
export function saveSettings(form = {inputFrom: null, inputTo: null}) {
return (dispatch) => {
dispatch(request
.then((response) => {
const alternatives = response.data.alternatives;
var routes = [];
for (const alt of alternatives) {
const routeName = alt.response.routeName;
const r = alt.response.results;
var totalTime = 0;
var totalDistance = 0;
var hasToll = false;
// I have some logic to loop through r and reduce to 3 variables
routes.push({
totalTime: totalTime / 60,
totalDistance: totalDistance / 1000,
hasToll: hasToll
});
}
dispatch({
type: SAVE_SETTINGS,
payload: { form: form, routes: routes }
});
})
);
}
}
reducer:
import { SAVE_SETTINGS } from '../actions/configure';
const initialState = { form: {configured: false, inputFrom: null, inputTo: null}, routes: [] };
export default function configure(state = initialState, action) {
switch (action.type) {
case SAVE_SETTINGS:
return state;
default:
return state;
}
}
you can see the state routes has size of 0 but the action payload has array of 3.
Really appreciate any help, thanks.

Answer 1

It looks like you have an unnecessary dispatch in your action, and your request doesn't look to be instantiated in the correct place. I believe your action should be:
export function saveSettings(form = { inputFrom: null, inputTo: null }) {
return (dispatch) => {
axios.get(url).then((response) => {
...
dispatch({
type: SAVE_SETTINGS,
payload: { form: form, routes: routes }
});
});
};
}