Q: How would I make a DELETE request?

I tried something like this:

function deleteData(item, url) {
  fetch(url + '/' + item, {
    method: 'delete'
  }).then(response =>
    response.json().then(json => {
      return json;
    })
  );
}

and I get Uncaught TypeError: Cannot read property 'then' of undefined

[luchillo17]

A bit late to this but you could improve on it like

function deleteData(item, url) {
  return fetch(url + '/' + item, {
    method: 'delete'
  })
  .then(response => response.json());
}

response.json() already returns a promise with json, so the last .then is unnecessary.

[knowbody]

@theopak yeah, what I was doing wrong - forgot to return the promise. So should look like:

function deleteData(item, url) {
  return fetch(url + '/' + item, {
    method: 'delete'
  }).then(response =>
    response.json().then(json => {
      return json;
    })
  );
}