Spring / Spring gRPC Interview Questions
What are the main ways to integrate gRPC into a Spring Boot application?
Two approaches are common. The first is the community-maintained grpc-spring-boot-starter (originally by devh/yidongnan, now continued under the grpc-ecosystem/grpc-spring project), which provides @GrpcService and @GrpcClient annotations plus autoconfiguration for an embedded Netty-based gRPC server and managed client channels.
The second is the official Spring gRPC project (spring-grpc) from the Spring team itself, which offers a Spring-native core library for gRPC plus a Boot starter with its own autoconfiguration and configuration properties, aiming to align more closely with idiomatic Spring Boot conventions (e.g., Spring Initializr support).
Both approaches let you write a plain class extending a generated service base class and register it as a bean; the difference is mainly in annotation names, configuration property namespaces, and how actively each project aligns with the latest Spring Boot release train.
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