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Secure API design requires multiple strategies to protect sensitive data and access.

Authentication verifies who you are, while authorization determines what you can do.

Session-based authentication uses cookies to remember users after login.

API keys help identify clients and control their access to APIs securely.

SSRF is a vulnerability where an attacker tricks a server into making unintended requests.

Fail Fast means stopping quickly on errors, while Fail Safe ensures safety in failures.

The TLS handshake establishes a secure connection for HTTPS, ensuring data safety.

The Bulkhead Pattern isolates resources to protect critical workloads from failures.

Functional requirements define what a system does, while non-functional requirements define how it performs.

Availability is about access; reliability is about correct performance.

The CAP Theorem explains the trade-offs in distributed systems during network failures.

JWTs allow secure user authentication without needing session storage.

Choosing the right boundaries for microservices is crucial for effective architecture.

Raft's safety rules guarantee that committed entries are preserved even after leader failures.

Cache penetration occurs when requests for non-existent data overload the database.

Transactions ensure database operations are reliable using ACID properties.

REST API design focuses on creating clean, efficient, and scalable web services.