Using Spring Boot together with gRPC and Protobuf

Question

Anyone having any examples or thoughts using gRPC together with Spring Boot?

Answer 1

If it's still relevant for you, I've created gRPC spring-boot-starter here.

grpc-spring-boot-starter auto-configures and runs the embedded gRPC server with @GRpcService-enabled beans.

The simplest example :

@GRpcService(grpcServiceOuterClass = GreeterGrpc.class) public static class GreeterService implements GreeterGrpc.Greeter {      @Override      public void sayHello(GreeterOuterClass.HelloRequest request, StreamObserver<GreeterOuterClass.HelloReply> responseObserver) {       // omitted      }  } 

There is also an example of how to integrate the starter with Eureka in project's README file.

Answer 2

https://github.com/yidongnan/grpc-spring-boot-starter

In server

@GrpcService(GreeterGrpc.class) public class GrpcServerService extends GreeterGrpc.GreeterImplBase {      @Override     public void sayHello(HelloRequest req, StreamObserver<HelloReply> responseObserver) {         HelloReply reply = HelloReply.newBuilder().setMessage("Hello =============> " + req.getName()).build();         responseObserver.onNext(reply);         responseObserver.onCompleted();     } } 

In client

@GrpcClient("gRPC server name") private Channel serverChannel;  GreeterGrpc.GreeterBlockingStub stub = GreeterGrpc.newBlockingStub(serverChannel); HelloReply response = stub.sayHello(HelloRequest.newBuilder().setName(name).build());