Password Hashing Algorithm Selection and Work Factor Tuning
Store passwords with a slow, salted, purpose-built hashing algorithm, not a fast general hash. Argon2id is the usual first choice for new systems, with scrypt,...
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Nginx Load Balancing Algorithms for Stateless APIs
For stateless APIs, round robin is a sound default in Nginx, and least connections is usually the better choice when request durations vary a lot. Hash-based...
Go Gin Binding and Validation Tags for Request Payloads
Gin binds request data into Go structs using struct tags, and validates it with the validator library through the binding tag. Prefer the ShouldBind family...
Go Gin Request ID Propagation Across Microservices
Request IDs correlate logs across services without proving caller identity. Start with a clearly defined correctness invariant and workload. Identify the state...
Go Gin Project Structure for Large APIs With Handlers Services and Repositories
A maintainable Gin API separates transport, business logic, and data access into handlers, services, and repositories, with dependencies pointing inward from...
Go database sql Connection Pool Tuning for Gin APIs
Go's database/sql package manages a connection pool for you, and its default settings are rarely right for a production API. Set a maximum number of open...
Go Gin Structured Logging Middleware With Request IDs
Structured logging middleware for Gin records one machine-readable log line per request, with a request ID that ties together every log message produced while...
Go Gin OpenTelemetry Trace Context Propagation
Distributed trace context links spans from separate services into one request path. Begin with an invariant that the service must preserve even when users...
Go HTTP Server Timeouts for Slow Client Protection
Server read, header, write and idle timeouts bound different stages of an HTTP connection. Begin with an invariant that the service must preserve even when...