using fetch mdn code example

Example 1: fetch

// This will fetch api.example.com/comments with a header and a body
fetch(`https://api.example.com/comments`, {
  method: 'POST', //This could be any http method
  headers: {
    'Authorization': 'Basic SGVsbG8gdGhlcmUgOikgSGF2ZSBhIGdvb2QgZGF5IQ==',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
	UID: 58,
    Comment: "Fetch is really easy!",
  }),
})
.then((response) => response.json())
.then((newComment) => {
  // Do something magical with your newly posted comment :)
});

Example 2: fetch api javascript

fetch('https://apiYouWantToFetch.com/players') // returns a promise
  .then(response => response.json()) // converting promise to JSON
  .then(players => console.log(players)) // console.log to view the response

Example 3: fetch api in javascript

// GET Request.
fetch('https://jsonplaceholder.typicode.com/users')
    // Handle success
    .then(response => response.json())  // convert to json
    .then(json => console.log(json))    //print data to console
    .catch(err => console.log('Request Failed', err)); // Catch errors

Example 4: fetch get request

// Example POST method implementation:
async function postData(url = '', data = {}) {
  // Default options are marked with *
  const response = await fetch(url, {
    method: 'POST', // *GET, POST, PUT, DELETE, etc.
    mode: 'cors', // no-cors, *cors, same-origin
    cache: 'no-cache', // *default, no-cache, reload, force-cache, only-if-cached
    credentials: 'same-origin', // include, *same-origin, omit
    headers: {
      'Content-Type': 'application/json'
      // 'Content-Type': 'application/x-www-form-urlencoded',
    },
    redirect: 'follow', // manual, *follow, error
    referrerPolicy: 'no-referrer', // no-referrer, *no-referrer-when-downgrade, origin, origin-when-cross-origin, same-origin, strict-origin, strict-origin-when-cross-origin, unsafe-url
    body: JSON.stringify(data) // body data type must match "Content-Type" header
  });
  return response.json(); // parses JSON response into native JavaScript objects
}

postData('https://example.com/answer', { answer: 42 })
  .then(data => {
    console.log(data); // JSON data parsed by `data.json()` call
  });