gRPC for Service-to-Service Communication

February 22, 2026

Grpc-Implementation, Protobuf-Design, Service-Communication, Error-Handling

Grpc, Protobuf, Streaming, Load-Balancing, Health-Checking, Deadlines, Error-Handling, Service-Communication

Protoc, Grpcurl, Grpc-Health-Probe, Buf, Grpc-Go, Grpc-Python

gRPC for Service-to-Service Communication#

gRPC is a high-performance RPC framework that uses HTTP/2 for transport and Protocol Buffers (protobuf) for serialization. For service-to-service communication within a microservices architecture, gRPC offers significant advantages over REST: strongly typed contracts, efficient binary serialization, streaming support, and code generation in every major language.

Why gRPC for Internal Services#

REST with JSON is the standard for public APIs. For internal service-to-service calls, gRPC is often the better choice.