⌘K

⌘K

Design Patterns
System Design Concepts
System Design Use Cases
Graph Theory
Low-Level-Designs
Machine-Learnings
- _index
  - gradient-descent

CAP Theorem
Capacity Estimation
Database Replication
Database Clustering
Multi Leader Replication
Distributed Systems
Consensus & Coordination
- Two-Phase Commit (2PC)
- Raft Consensus
Messaging & Event-Driven
Rate Limiting
- Rate Limiting Algorithms
Reliability Patterns
API Design
- API Pagination
- API Idempotency Keys & Versioning
Architecture
- Microservices vs Monolith
- Service Discovery & API Gateway
Networking
Search, Geospatial & Real-Time
Storage & Databases
Scaling
- Database Sharding
Security
Data Engineering
AI / ML Systems

System Design Concepts

Security

Security

JWT (JSON Web Tokens)

Header.payload.signature structure, HS256 vs RS256 key models, stateless validation, JWKS key distribution, and alg:none / key-confusion attacks

OAuth 2.0 & OIDC

Authorization code flow, PKCE for public clients, access/refresh token lifecycle, OIDC identity layer, and token revocation strategies

API Authentication Patterns

API keys (hashed storage), HMAC request signing (replay prevention), mTLS for microservices, JWT Bearer tokens, and scheme selection by caller trust level