This pattern implements a secure WebSocket API using AWS CDK, integrating CloudFront for distribution and WAF for protection through AWS CDK with Python. It makes use of API keys to ensure that the Websocket endpoint can only be accessed via the CloudFront distribution by passing the API key as custom header from CloudFront.The WebSocket API provides real-time communication capabilities, while CloudFront ensures low-latency content delivery. The Web Application Firewall (WAF) adds an extra layer of security by protecting against common web exploits and controlling access based on configurable rules.