httpRequest.js

async function get(url) {
  try {
    const response = await fetch(url);
    const responseJson = await response.json();

    return responseJson;
  } catch (error) {
    console.error(error); /* eslint-disable-line no-console */
    return error;
  }
}

const httpRequest = {
  get,
};

export default httpRequest;

TeamsApi.js

import httpRequest from '../services/httpRequest';

const teamsApiUrl = 'http://private-c09d5b-worldcup20181.apiary-mock.com/teams';

function getAll() {
  return httpRequest.get(teamsApiUrl);
}

function get(teamCode) {
  return httpRequest.get(`${teamsApiUrl}/${teamCode}`);
}

const teamsApi = {
  getAll,
  get,
};

export default teamsApi;