Go + gRPC + PostgreSQL overview

A Go microservice stack using gRPC for strongly-typed inter-service communication and PostgreSQL as the primary relational data store. Service contracts are defined in Protocol Buffers and code-generated into Go stubs via protoc-gen-go-grpc. This combination targets high-throughput internal APIs and platform services where strict schema contracts between teams matter. pgx or sqlc are common PostgreSQL drivers; sqlc generates type-safe Go from SQL queries. grpc-gateway can expose an HTTP/JSON transcoding layer alongside the gRPC server. Deployment typically targets Kubernetes with Envoy or a service mesh handling mTLS between services.