The video tutorial explains the API Gateway Aggregation Pattern, which aggregates multiple requests to backend microservices into a single request for the client application. This pattern is beneficial when a client needs to interact with several microservices, reducing network latency and improving performance. However, it introduces potential issues like service coupling and single points of failure. Implementing resilience strategies such as circuit breaking and retry patterns is crucial to mitigate these risks.

Explain how the Gateway Aggregation Pattern handles multiple requests from a client.

What techniques can be implemented to ensure resilience in the API Gateway application?