What is the method to articulate it through the fetch API in JavaScript?

Currently, I am utilizing ajax (jquery) to POST image data in the following manner. The image being used is a File object.

async function postImage({ image }) {
  const result = await $.ajax({
    method: 'POST',
    url: '/api/images',
    dataType: 'json',
    data: image,
    processData: false,
    async: true,
    headers: {
      'Content-Type': 'application/octet-stream',
    },
  });
  return result;
}

The returned object contains the ID of the image and is structured as {id: imageID}. I am now looking for guidance on how to achieve the same functionality using the Fetch API. Despite attempting the following code snippet, I have been unsuccessful in getting the desired result.

const result = await fetch('/api/images', {
    method: 'POST',
    body: image,
    headers: {
      'Content-Type': 'application/octet-stream',
    },
  });
return result;

Answer №1

fetch() is a method that returns a promise to a Response object, which contains a json() method. This method further returns another promise to the parsed response JSON data.

const response = await fetch('/api/images', {
  method: 'POST',
  body: image,
  headers: {
    'Content-Type': 'application/octet-stream',
  },
});
const result = await response.json();

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