Lambda@Edge can simplify your application architecture, decrease latency and improve response time. There are a number of appealing use-cases for Lambda@Edge including user authentication using JWT Tokens and signed cookies. In this post I am sharing ideas on how to pass parameters such as URLs, names and ARNs of AWS resources to a Lambda@Edge function when creating them from a CloudFormation or Serverless Application Model template. Like many developers I experienced this problem when I started working with Lambda@Edge.