Knowledge

GraphQL vs REST API comparison - architecture, over/under-fetching, caching, versioning, N+1 problem and tooling. Learn when to choose GraphQL and when REST.

Build real-time notification systems with Redis Pub/Sub. Node.js implementation, WebSocket integration, scaling strategies and comparison with Kafka.

Learn how to implement Elasticsearch for full-text search. Inverted index, mapping, analyzers, aggregations, ELK stack, and practical REST API examples.

MySQL vs PostgreSQL comparison - SQL compliance, data types, JSON, replication, performance, extensions, and cloud offerings. Find the right database for you.

Supabase vs Firebase comparison - databases, authentication, storage, edge functions, real-time, pricing, and self-hosting. Which BaaS to choose for your project?

PostgreSQL vs MongoDB - relational vs document model, ACID, SQL vs MQL, indexing, scalability, JSONB support and use cases for both databases.

Learn OAuth 2.0 and OpenID Connect - modern authentication standards. Flows, JWT tokens, PKCE, integration with Next.js, Auth0, Keycloak, and Azure AD.

Explore the OWASP Top 10 2021 - the most critical web application security risks. Attack examples, prevention methods, and practical security implementations.

Comprehensive guide to OpenAI ChatGPT API. GPT-4 and GPT-3.5 models, Chat Completions, streaming, function calling, embeddings, RAG, and Next.js integration.

A complete guide to Machine Learning with TensorFlow and Keras in Python. CNN, RNN, Transformer, transfer learning, model deployment, and practical examples.