Explore the concept of sidecar proxies in application design through this informative video. Learn about the library pattern and sidecar pattern, comparing their approaches to handling inter-service communications, monitoring, and security. Discover how sidecar proxies abstract networking features from the main architecture, easing maintenance. Examine real-world examples in microservices using tools like Linkerd, Envoy, and Istio. Delve into the pros and cons of sidecar proxies, including language agnosticism, protocol upgrades, security benefits, and potential complexity. Gain insights into HTTP/2, reverse proxies, and the differences between Layer 4 and Layer 7 load balancers. Perfect for developers and architects seeking to understand modern application design patterns and their implications.