posting data with fetch code example

Example 1: How to Use the JavaScript Fetch API to Get Data

fetch('http://api.steampowered.com/ISteamUserStats/GetGlobalAchievementPercentagesForApp/v0002/?gameid=221380')
    .then(function(response) {
        return response.json();
    })
    .then(function(myJson) {
        console.log(JSON.stringify(myJson));
    });

Example 2: fetch get data js

var myHeaders = new Headers();

var myInit = { method: 'GET',
               headers: myHeaders,
               mode: 'cors',
               cache: 'default' };

fetch('flowers.jpg',myInit)
.then(function(response) {
  return response.blob();
})
.then(function(myBlob) {
  var objectURL = URL.createObjectURL(myBlob);
  myImage.src = objectURL;
});