abstractization.js

const API = (function () {
  const url = 'https://purelyawespme.com/api'
  const handleError = (res) => res.ok ? res : Promise.reject(res.statusText)
  const doGet = (endpoint) => window.fetch(url + endpoint, {
    method: 'GET',
    headers: new Headers({
      'Accept': 'application/json'
    })
  })
    .then(handleError)
    .catch(error => { throw new Error(error) })
  const doPost = (endpoint, body) => window.fetch(url + endpoint, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body
  })
    .then(handleError)
    .catch(error => { throw new Error(error) })

  return {
    post: doPost,
    get: doGet
  }
}())