Phablecare Software Development Engineer (SDE) II interview questions

I got there a message from Naukri.com. The first round technical round and it was with their director. He give to design API for the blog system, and I started writing the logic. When I am done he asked me to execute the API, I asked him to run all functions on the shell and can show him the output. But he said no he want to see the response in the browser or Postman. I told him that for doing that I need to do all the project setup, which I thought is unnecessary( Candidate should know all the logic and how to do system design and contract) Then he insulted me by saying go and study and then apply. That was really rude if I was not a good fit for their company they can politely rejected me instead of insulting me in the middle of the interview. I have given several interviews but have not experienced this before. Just thought that if this is the behavior of the director in an interview then how would it be if you join the organization?