Go Gin API Validation at Transport vs Domain Boundaries
Request validation at the HTTP boundary catches malformed JSON and missing fields early. Good production engineering begins by defining the behavior that must...
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Go Worker Pools and Backpressure for Background Processing
Bounded worker queues prevent unbounded memory growth when producers outpace downstream processing. Production architecture demands explicit correctness...
Go Error Wrapping vs Sentinel Errors in API Services
Error wrapping retains causal context while sentinel errors let callers classify expected failure categories. Production architecture demands explicit...
Go Graceful HTTP Shutdown With In Flight Requests
Graceful shutdown stops admitting new work and gives active requests a bounded period to complete. Production architecture demands explicit correctness...
Go Database Connection Pool Sizing for High-Concurrency APIs
Increasing the pool size can increase contention and overload the database instead of improving throughput. The sql.DB abstraction manages connections and...
Go Context Cancellation Best Practices for Gin HTTP Handlers
A client disconnect can leave expensive downstream work running unless cancellation is propagated. The request's standard context is intended for deadline and...
How to Design Secure Logout Across Multiple Devices
Direct answer: Clearing one browser cookie does not revoke every active device session. This design decision should be evaluated through explicit guarantees...
Go Interface Design for Mockable API Services
Direct answer: Narrow Go interfaces describe only behavior needed by callers. For production teams, the right choice depends on state ownership, performance...
Go Gin Request Body Size Limits for JSON Endpoints
Direct answer: Large JSON request bodies can exhaust memory before schema validation. For production teams, the right choice depends on state ownership,...