Spit file into blobs

split_file_into_blob.js

const file = document.getElementById('upload').files[0]; 
const CHUNK_SIZE = 10000000; // 10MB
const fileSize = file.size;
const CHUNKS_COUNT = Math.floor(fileSize / CHUNK_SIZE) + 1;
let start, end, blob;

 for (let index = 1; index < CHUNKS_COUNT + 1; index++)
    {
        start = (index - 1) * CHUNK_SIZE;
        end = (index) * CHUNK_SIZE;
        blob = (index < CHUNKS_COUNT) ? file.slice(start, end) : file.slice(start);



      //  get blob and send the data to the upload functions

      }