APIs & Security
REST, GraphQL, gRPC compared — plus authentication methods, API design, and secure inter-service communication.
Courses
Master how microservices talk to each other — synchronous REST and gRPC, async messaging, event-driven patterns, resilience, and distributed consistency.
Articles
A well-designed REST API is a contract. Clients depend on your URL structure, your error format, and your pagination scheme for months or ye…
Real-time communication between server and client breaks the standard HTTP request-response model. When you need live updates — chat message…
JSON Web Tokens are everywhere — issued by every OAuth 2.0 provider, sent in every Authorization: Bearer header, decoded by every modern API…
Authentication in modern apps spans three distinct models. Sessions store user state on the server and send a session ID in a cookie — simpl…
Every public API needs rate limiting — to prevent abuse, protect downstream services, and ensure fair usage across tenants. Without it, one …
Modern systems rarely pick one API style for everything. REST uses HTTP and JSON — simple, cache-friendly, and the default for public web AP…
Modern backends rarely speak one language. Clients hit REST endpoints through an API Gateway. Mobile apps send GraphQL queries to fetch exac…
Every REST API needs a way to verify who is calling it and what they are allowed to do. The method you choose shapes your security posture, …
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