gRPC

gRPC is a modern open-source high-performance Remote Procedure Call (RPC) framework that can run in any environment. It uses Protocol Buffers (Protobuf) as its Interface Definition Language (IDL).

When to Use

• Low-Latency Microservice Communication: High-throughput inter-service RPCs requiring binary Protobuf serialization and HTTP/2 multiplexing.
• Polyglot Systems: Generating strongly-typed, idiomatic client and server stubs across Go, Rust, Java, Python, C++, and Node.js.
• Bidirectional Streaming: Real-time communication pipelines requiring continuous duplex message exchanges over a single TCP connection.
• Internal Cluster Mesh Traffic: Connecting services behind the API gateway with minimal CPU and bandwidth serialization overhead.

Quick Start

// service.proto
syntax = "proto3";