March, 2018 - In our previous blog we introduced using AWS Lambda functions for simple REST services. Today, we are going to show how to secure access to your REST endpoints, using Lambda and API Gateway. Securing your services is critical before you allow your REST endpoints to be available on the public Internet. Unsecured endpoints can cause significant problems, including uncontrolled costs, incorrect data, and exposing private data. This post will show one approach to securing your Lambda REST services.