Missing Authentication Token while accessing API Gateway?

Question

I am trying to call a Lambda Function through AWS API Gateway. When I mention Authentication type NONE it works fine but API become public and anyone with url can access my

Answer 1

I had the same problem which I solved the following way:

GET Method test

https://54wtstq8d2.execute-api.ap-southeast-2.amazonaws.com/dev/echo/hello

Authorization tab -> 
•   select type(AWS signature)
•   Add AccessKey and SecretKey