grpc-go

gRPC-Go is the Go language implementation of gRPC, described as a high performance, open source, general RPC framework that puts mobile and HTTP/2 first. The repository contains the core Go library, low-level technical documentation, examples, and a performance benchmark link. Installation is done by importing "google.golang.org/grpc" in Go code; the go build/run/test commands then fetch dependencies automatically. The project requires one of the two latest major Go releases. The README points to the Go gRPC documentation site, which includes a quick start and API reference, plus repository-level technical docs, examples, and contribution guidelines. A FAQ section addresses common issues: I/O timeout errors when golang.org is blocked (with workarounds using a VPN or go mod replace directives), the undefined grpc.SupportPackageIsVersion compile error (fixed by updating the library), enabling logging via GRPC_GO_LOG_VERBOSITY_LEVEL and GRPC_GO_LOG_SEVERITY_LEVEL environment variables, and diagnosing the "transport is closing" Unavailable error, which can stem from credential or handshake problems, proxy interference, server shutdown, or keepalive settings such as MaxConnectionAgeGrace. The README advises enabling logging on both client and server when debugging such transport errors.