✅ Attachment upload to Jira through a custom application using AJAX and ASP .NET Core 6 - Rest Sharp

function sendFeedback(data) {
    $.ajax({
        url: '/Jira/SendFeedback',
        type: 'POST',
        processData: false,
        cache: false,
        data: populateFormData(data),
        contentType: false,
         });
}
function populateFormData(data) {
    $.each($("input[type='file']")[0].files, function (i, file) {
        formData.append('Files', file);
    });
    return formData;
}

private RestRequest NewRequest(IFormFile file, JiraCreateIssueResponse issueData)
    {
        var request = new RestRequest() { Authenticator = new HttpBasicAuthenticator(_jiraConfiguration.ApiUsername, _jiraConfiguration.ApiToken) };
                var requestJson = string.Empty;
                request.AddHeader("X-Atlassian-Token", "no-check");
                request.AlwaysMultipartFormData = true;
                //request.AddParameter("file", GetFileBytes(file), file.FileName, "application/octet-stream");
                //request.AddFile(file.FileName, GetFileBytes(file), file.FileName);
                request.Method = Method.Post;
        return request;
    } 
 private  byte[] GetFileBytes(IFormFile f)
    {
        var b = new byte[1];
        using (var mS = new MemoryStream())
        {
            f.CopyTo(mS);
            fileBytes = mS.ToArray();
        }
        return b;
    }
private bool SendRequest(RestRequest request, string url, out RestResponse response)
    {
        var client = new RestClient(url);
        response = client.Execute(request);

        return response.StatusCode == 200;
    }