@Prasant Chettri Thanks for reaching out.
There could be several reasons that you are not able to see the function in the azure portal.
- When you have deployed your function did you see successfully message, or do you see any error/exceptions?
- The function input/output binding is incorrect. Have you tried to run your function locally before deploying to azure? Did you see your functions in the local environment?
- Trigger sync issue where you may need to sync the trigger again using this API and see if it helps you.
I will also suggest to validate the application insights logs to see if there are any runtime exception/errors in your function app which would be causing this issue. You can also review the diagnose and solve problem on your function app to know more details.
I will also suggest you to review the Functions PowerShell developer guide.