fetch promise

fetchPromise.js

  return new Promise((resolve, reject) => {

    fetch("/api/v1/principal", {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': 'Bearer ' + access_token,
      }
    })
    .then(result => {
      console.log('success. The result is ', result);
      resilve(result);
    }).catch(error =>{
      console.log('fail. error is ', error);
      reject(error);
    });
  });