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 is the first step the API Gateway performs when a client request is received?

• Transforms the request protocol

• Validates the incoming request

• Logs the request details

• Checks the request format

How does the API Gateway handle IP-based protections?

• By encrypting the IP address

• By providing allow and deny listings

• By logging the IP address

• By changing the IP address

What does the API Gateway do after receiving an authenticated session?

• It logs the session details

• It sends a response to the client

• It checks rate limiting based on IP and headers

• It transforms the session protocol

Which feature allows the API Gateway to redirect requests to specific microservices?

• Protocol transformation

• Service discovery

• Rate limiting

• Session authentication

What resilience pattern is NOT mentioned as being performed by the API Gateway?

• Load balancing pattern

• Bulkhead pattern

• Circuit breaker pattern

• Retry pattern