Can i send stream object to dropbox upload api? or else can i send data in multipart format. because when i try to upload data by sending stream in body i get error {"code":404,"name":"ActionUncaughtException","body":{"name":"TypeError","message":"First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object." } . Also when i try using multipart format i get following error. Error in call to API function "files/upload": Bad HTTP "Content-Type" header: "multipart/form-data;". Expecting one of "application/octet-stream", "text/plain; charset=dropbox-cors-hack"