golang-grpc

Handle gRPC errors in Go by mapping failures to the correct `codes` and returning `status.Error` or `status.Errorf` instead of raw errors. This preserves gRPC error semantics, allowing clients to inspect failure reasons and apply retry policies correctly.

Test gRPC streaming RPCs in-memory using `bufconn` to create a deterministic dialer without relying on real network ports. This approach verifies status codes and streaming behavior safely within your Go test suites.

Configure graceful shutdown for a Go gRPC server by implementing a timeout fallback mechanism. This ensures the server stops accepting new requests, finishes processing active streaming RPCs, and closes connections cleanly without hanging indefinitely.

Structure protocol buffer files using domain and versioned directory organization. Implementing Request and Response wrapper messages for your gRPC APIs ensures backward compatibility and easier schema evolution as your service grows.

Yes, this skill supports client correctness by providing guidelines for TLS/mTLS credential setup and configuring per-call deadlines. It ensures connection reuse and proper service discovery or load-balancing configurations with retry policies.

Use gRPC interceptors in Go microservices to manage cross-cutting concerns like logging, authentication, and metrics uniformly. Wiring interceptor hooks keeps your core service logic clean while maintaining production-grade observability and security.