Problem when inserting BLOB object in $.hdb API

Hi,

I am trying to insert an object (file) into BLOB column in HANA through $.hdb API (new XSJS API).

The code is as follows:

case "UPLOAD":

var file_name = $.request.headers.get("slug");

//var file_content = $.request.body.asString(); // Returns the content as string

var file_content=$.request.body;// I tried to use this to insert the file as it is into the BLOB column.

var stmt = "INSERT INTO \"IBASS\".\"ibass.IBASS_1.DATA::TABLE_DEFINITIONS.BA_TASKS_ATTACHMENTS\" "+

             "VALUES (?,?,?,?,?)";

conn.executeUpdate(stmt,4,'1',file_name, file_content, 'PDF');

conn.commit();

The response is