Api Call using fecth

apiCall.js

export function apiCall(route, body = {}, method = 'POST') {
  const request = new Promise((resolve, reject) => {
    const headers = new Headers({
      'Content-Type': 'application/json',
    });

    const requestDetails = {
      method,
      mode: 'cors',
      headers,
    };

    if (method !== 'GET') requestDetails.body = JSON.stringfy(body);

    function handleErrors(response) {
      if (response.ok) {
        return response.json();
      } else {
        throw Error(response.statusText);
      }
    }

    const baseURL = process.env.BASE_URL || `http://localhost:3000`;

    // Make the web request w/ fetch API
    fetch(`${baseURL}/${route}`, requestDetails)
      .then(handleErrors)
      .then(data => resolve(data))
      .catch(err => reject(err));
    
  });
}