unable to run update, create & delete query on my s4sdk app via postman

Question

I followed the tutorial: https://open.sap.com/courses/s4h13/items/258qEhXx5kdG8b4SXMSJYp , I made changes in accordance with my Custom Odata service, however my app works only for read operations. I am adding X-CSRF-token after fetching it via get request, but still I get 501 (not implemented error) even though I do have doPatch method implemented in my servlet & its respective command class. any suggestion what I might be doing wrong?

Answer 1

You correctly pointed out that the issue was with HttpServlet class, I switched to the one which was used in the example & my update operation started working. thanks.