Design Microservices Architecture with Patterns and Principles - A Request Flow of API Gateway Pattern

The video tutorial explains the API Gateway pattern, detailing the flow of client requests through the API Gateway to internal microservices and back. It covers request validation, IP filtering, authentication, rate limiting, routing, protocol transformation, and response handling. Additionally, it discusses cross-cutting concerns like monitoring, logging, and resilience patterns such as retry, circuit breaker, and bulkhead.

What are the initial steps taken by the API Gateway when a client request is received?

How does the API Gateway handle authentication and authorization?

Explain the role of rate limiting in the API Gateway.

What transformations can the API Gateway perform on requests?

Describe the resilience patterns that an API Gateway can implement.