Hi,
True.
My idea was to check if you can get something of the web.
Did the code work for you as is ?
Change the url to your url and put a break point here :
Image may be NSFW.
Clik here to view.
What is the content of field "response_string_1" ?
You wrote "i got a numbers of records with ',' delimiter on browser."
You need to write a code to parse those records.
Do a google using search operators: site:scn.sap.com parse csv file
Regards.