Hands-on Lab - Event Driven Architecture with Amazon API Gateway, Amazon EventBridge and AWS Lambda

This is a lab exercise that demonstrates an event-driven architecture using AWS services such as API Gateway, EventBridge, and Lambda functions. The objective is to configure an HTTP API on API Gateway to redirect requests to EventBridge, create event bus rules to match incoming requests and route events to Lambda functions, and process events with Lambda functions. The lab consists of five Lambda functions: make_pizza, cook_pizza, deliver_pizza, websocket_connect, and receive_events. Each function has a specific role in the event-driven architecture. The make_pizza function is triggered by an HTTP request to API Gateway, which then sends an event to EventBridge. The event is then routed to the cook_pizza function, which processes the event and sends another event to EventBridge. This process continues until the deliver_pizza function is triggered. The websocket_connect function is used to establish a WebSocket connection between the client application and API Gateway. The receive_events function is used to receive events from EventBridge and send them back to the client application via the WebSocket connection. The lab also involves configuring EventBridge rules to match incoming requests and route events to the Lambda functions. The rules are configured to match specific event patterns, such as the event type. Finally, the lab involves testing the event-driven architecture by sending an HTTP request to API Gateway and verifying that the events are processed correctly by the Lambda functions. The architecture diagram shows the flow of events from API Gateway to EventBridge to the Lambda functions and back to the client application via the WebSocket connection. The lab demonstrates the use of event-driven architecture to decouple services and enable scalable and flexible applications. The lab uses AWS services such as API Gateway, EventBridge, Lambda functions, and DynamoDB to demonstrate the event-driven architecture. The use of these services enables the creation of a scalable and flexible application that can handle a large volume of events. Overall, the lab provides a comprehensive example of an event-driven architecture using AWS services and demonstrates the use of these services to create a scalable and flexible application.