javascript - Amazon upload multipart "multiplies file size" JS

Question

I'm uploading in multipart a file in aws, i've already checked the filesize, the buffer size, everything's good, but, on aws i have a 500mbytes file (instead of 100mb...)

What could be the problem?

My code below :

The function that prepares the sending and

async function send(uploadID, path, filename, projectTitle) {
    let stats = fs.statSync(path);
    let data = [];
    let readStream = fs.createReadStream(path,{ highWaterMark: 10 * 1024 * 1024});
    readStream.on('data', (chunk)=>{
        data.push(chunk)
    }).on('end', async ()=>{
        for (let i = 0; i<data.length; i++){
            await $.post(baseUrl + "/signChunk/" + token_g, {
                uploadId : uploadID,
                partNumber : i+1,
                id : currentProjectID
            }).done(async (result)=>{
                if(result.response===true){
                    await putData(result.signedRequest, data[i], i+1, data.length, filename, uploadID);
                }
            });

        }
    });

    return 0;
}

The function that sends data to the remote (chunk by chunk)

async function putData(url, chunk, id,dataLen,fn,uploadID, attemps = 0){
    let part = {"PartNumber" : id, "ETag" : ""};
    let opts = {
        url : url,
        method : "PUT",
        data : {
            data: escape(chunk).toString('binary')
        }
    }
    curSize = 0;
    $.ajax(opts).done(async (data, status, xhr)=>{
        if(xhr.status==200){
            part.ETag = xhr.getResponseHeader("etag")
            complete.push(part);
            if(complete.length>=dataLen){
                finalizeUpload(uploadID);
            }
        } else {
            putData(url, chunk, id, dataLen,fn, uploadID, attemps++);
        }
    })
}

The function that finalizes the upload (and reconstitute the file from chunks)

async function finalizeUpload(uploadID){
    let result = await $.post(baseUrl + "/endMultipart/" + token_g,{
        id : currentProjectID,
        uploadId : uploadID,
        partsNumbers : complete
    });
    complete = [];
}

question from:https://stackoverflow.com/questions/65888641/amazon-upload-multipart-multiplies-file-size-js

Answer 1

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