Act_creator.js

import axios from 'axios';
import { SET_FILTER_TERM, SET_FILTER_PRICE, ADD_API_DATA } from './actions';

export function setFilterTerm(filterTerm) {
  return { type: SET_FILTER_TERM, payload: filterTerm };
}

export function setFilterPrice(filterPrice) {
  return { type: SET_FILTER_PRICE, payload: filterPrice };
}

export function addAPIData(apiData) {
  return { type: ADD_API_DATA, payload: apiData };
}

export function getAPIDetails() {
  return (dispatch) => {
    axios
      .get("http://localhost:3000/productsList")
      .then(response => {
        dispatch(addAPIData(response.data));
      })
      .catch(error => {
        console.error('axios error', error); // eslint-disable-line no-console
      });
  };
}

reducers.jsx

import { combineReducers } from 'redux';
import { SET_FILTER_TERM, SET_FILTER_PRICE, ADD_API_DATA } from './actions';

const filterTerm = (state = '', action) => {
  if (action.type === SET_FILTER_TERM) {
    return action.payload;
  }
  return state;
};

const filterPrice = (state = {}, action) => {
  if (action.type === SET_FILTER_PRICE) {
    return action.payload;
  }
  return state;
};

const apiData = (state = [], action) => {
  if (action.type === ADD_API_DATA) {
    return action.payload;
  }
  return state;
};

const rootReducer = combineReducers({ filterTerm, filterPrice, apiData });

export default rootReducer;