CODE EXAMPLE FOR JAVASCRIPT

upload local file nodejs

const FormData = require('form-data');
const fetch = require('node-fetch');

function uploadImage(imageBuffer) {
  const form = new FormData();
  form.append('file', imageBuffer, {
    contentType: 'image/jpeg',
    filename: 'dummy.jpg',
  });
  return fetch(`myserver.cz/upload`, { method: 'POST', body: form })
};