Uploading a file to Yandex Disk REST API?

Question

JavaScript

To upload a file to Disk, you need to:
Request a download URL.
Upload the file to the given address.
https://tech.yandex.ru/disk/api/reference/upload-d...
I get the address and make the following request:

axios.put(url,
        {
           headers: {
           'Accept': '*/*',
           'Content-Type': 'application/x-www-form-urlencoded',
           'Expect': '100-continue',
           'Content-Length': size
        },
        data: file
    })
        .then(res => res.status)
        .catch(error => {
            throw error
        });

No matter how I experiment with headers, I get this CORS error

Access to XMLHttpRequest at ' https://uploader38o.disk.yandex.net/upload-target/... ' from origin ' localhost:3000 ' has been blocked by CORS policy: Request header field Authorization is not allowed by Access-Control -Allow-Headers in preflight response.

There is no example in the documentation, just a link.
How to make a request?

Answer 1

The problem is solved, I passed base64, but you need to pass blob
here is the query function and converting to blob. file is data from Filereader (reader.result)

export const upload_file_api = (url, file) => {
    const parts = file.split(',');
    const typep = parts[0];
    const base64Data = parts[1];
    const type = typep.split(';')[0].split(':')[1];
    const blobfile = b64toBlob(base64Data, type);

    delete axios.defaults.headers.common['Authorization'];
    axios.defaults.headers.common['Content-Type'] = 'application/octet-stream';
    return axios.put(url, blobfile)
        .then(res => res.status)
        .catch(error => {
            throw error
        });
};

function b64toBlob(b64Data, contentType, sliceSize) {
    contentType = contentType || '';
    sliceSize = sliceSize || 512;

    var byteCharacters = atob(b64Data);
    var byteArrays = [];

    for (var offset = 0; offset < byteCharacters.length; offset += sliceSize) {
        var slice = byteCharacters.slice(offset, offset + sliceSize);

        var byteNumbers = new Array(slice.length);
        for (var i = 0; i < slice.length; i++) {
            byteNumbers[i] = slice.charCodeAt(i);
        }

        var byteArray = new Uint8Array(byteNumbers);

        byteArrays.push(byteArray);
    }

    var blob = new Blob(byteArrays, {type: contentType});
    return blob;
}