trc-client-core/src/product/ProductReducer.js

The core of the TRC Client

import {
    VEHICLES_FETCH,
    VEHICLES_RECEIVE,
    VEHICLES_ERROR
} from 'trc-client-core/src/constants/ActionTypes';

import {List, OrderedMap, fromJS} from 'immutable';

const initialState = fromJS({
    error: null,
    vehicles: null
});

export default function qanda(state = initialState, action) {
    switch (action.type) {
        // Fetch
        case VEHICLES_FETCH:
            return state.set('fetching', true);

        // Error
        case VEHICLES_ERROR:
            return state
                .set('fetching', false)
                .set('error', action.payload);

        // Success
        case VEHICLES_RECEIVE:
            return state.set('vehicles', fromJS(action.payload)
                .reduce((reduction,file) => {
                    return reduction.set(file.get('modelName'), file)
                }, OrderedMap())
            );

        default: 
            return state;
    }
}