I want to upload a single file from a react frontend to an express server. The file will locally (on frontend) be divided into multiple chunks and then these chunks will be uploaded to the server in parallel (maximum 6 requests at a time), the upload should be resumable, which means if the connection is lost during the upload, then on the next try we don’t have to upload the entire file again, it should upload only the remaining parts/chunks.

I want to upload a single file from a react frontend to an express server. The file will locally (on frontend) be divided into multiple chunks and then these chunks will be uploaded to the server in parallel (maximum 6 requests at a time), the upload should be resumable, which means if the connection is lost during the upload, then on the next try we don’t have to upload the entire file again, it should upload only the remaining parts/chunks. When all the chunks are received by the server, then they should be joined in the correct order so that we can get the original file back, as it was on the client side before upload. Please let me know how it can be done, I am new to file uploading in a full stack app.