change request url axios code example

Example 1: axios configure base url

axios.defaults.baseURL = '/api/';

Example 2: axios api post request

import qs from 'qs';
const data = { 'bar': 123 };
const options = {
  method: 'POST',
  headers: { 'content-type': 'application/x-www-form-urlencoded' },
  data: qs.stringify(data),
  url,
};
axios(options);