golang-error-handling

To propagate errors in Go, you wrap them with additional context at each layer using fmt.Errorf, then unwrap and classify them at the top level to map errors to HTTP or gRPC responses for reliable diagnostics.

Aggregating multiple errors in Go involves combining them into a single error value using multi-error aggregation strategies, allowing your application to return a comprehensive diagnostic report instead of failing on the first encountered error.

Mapping wrapped Go errors to HTTP and gRPC responses requires establishing an error taxonomy that differentiates sentinel, typed, and wrapped errors, then translating those specific categories into appropriate HTTP status codes or gRPC response codes.

Use sentinel errors in Go for specific expected values like io.EOF, and use typed errors when you need to carry structured data, establishing a clear error taxonomy to differentiate sentinel, typed, and wrapped errors for better classification.

Yes, this error handling approach supports production-grade Go systems by implementing thorough error taxonomy, propagation, multi-error aggregation, and recovery mechanisms to ensure reliable error diagnostics and validation across microservice architectures.