reactjs - localhost:8080 stopping my reply from API -

i doing tutorial on react reflux. im getting 404 on query response. think has todo url sent fetch data.

when console.log on variable 'url' following:
api.openweathermap.org/data/2.5/forecast?appid=4e26b7e43fe918dbc620bbf34456a9de&q=new york,us
in network request tab see following in request

request url:http://localhost:8080/api.openweathermap.org/data/2.5/forecast?appid=4e26b7e43fe918dbc620bbf34456a9de&q=new%20york,us request method:get status code:404 not found remote address:127.0.0.1:8080 

if copy address , paste address bar, sure thing dont respons, if delete localhost:8080 address, perfect response api.

why localhost:8080 being added, , if wrong how fix it?

here action created go , fetch data.

action:

import axios 'axios'; const api_key = '4e26b7e43fe918dbc620bbf34456a9de'; const root_url = `api.openweathermap.org/data/2.5/forecast?appid=${api_key}`;  export const fetch_weather = 'fetch_weather';  export function fetchweather(city) {     var url = `${root_url}&q=${city},us`;      const request = axios.get(url);      return {         type: fetch_weather,         payload: request     }; } 

this worked, can explain why maybe?
on url variable, manually added http:// , caused url request not prepend http://localhost:8080

import axios 'axios';  const api_key = '4e26b7e43fe918dbc620bbf34456a9de'; const root_url = `api.openweathermap.org/data/2.5/forecast?appid=${api_key}`;  export const fetch_weather = 'fetch_weather';  export function fetchweather(city) {      var url = `http://${root_url}&q=${city},us`;      const request = axios.get(url);      return {         type: fetch_weather,         payload: request     }; }