GraphQL live queries vs subscriptions: semantics, transports, scaling, caching, and DX compared—learn when to use each and how to combine them.
A practical guide to HTTP If-Modified-Since for REST APIs: how it works, 304 responses, server/client examples, pitfalls, and best practices.
Design and implement REST API partial responses for speed and safety—syntax options, caching, security, and implementation patterns with examples.
Design, implement, and test REST API content negotiation: headers, q-values, media types, versioning, caching, and error handling with practical examples.
A practical guide to GraphQL caching on the client and server—policies, headers, CDNs, and invalidation patterns that keep data fast and correct.
Understand when to choose React SSR vs Static Generation. Compare performance, SEO, caching, costs, and patterns like streaming SSR, ISR, and RSC.
