private string CreateSession(string fileName)
{
string json = JsonConvert.SerializeObject(new
{
item = new Dictionary <string, string>
{
{ "@microsoft.graph.conflictBehavior", "replace" }
}
});
string folderPath = GetFolderUrl(FolderID);
string url = URLHelpers.BuildUri("https://graph.microsoft.com", $"/v1.0/{folderPath}:/{fileName}:/createUploadSession");
AllowReportProgress = false;
string response = SendRequest(HttpMethod.POST, url, json, RequestHelpers.ContentTypeJSON, headers: GetAuthHeaders());
AllowReportProgress = true;
OneDriveUploadSession session = JsonConvert.DeserializeObject <OneDriveUploadSession>(response);
if (session != null)
{
return(session.uploadUrl);
}
return(null);
}