init

cmd/server/main.go

@@ -0,0 +1,47 @@
+// grpc server
+package main
+
+import (
+	"context"
+	"net"
+
+	pb "github.com/esinio/geco/gen/service/echo/v1"
+	"github.com/golang/protobuf/ptypes"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func main() {
+	s := grpc.NewServer()
+	pb.RegisterEchoServiceServer(s, &service{})
+	lis, err := net.Listen("tcp", ":9090")
+	if err != nil {
+		panic(err)
+	}
+	defer lis.Close()
+
+	defer s.GracefulStop()
+
+	if err := s.Serve(lis); err != nil {
+		panic(err)
+	}
+}
+
+// UnimplementedEchoServiceServer must be embedded to have forward compatible implementations.
+type service struct {
+	pb.UnimplementedEchoServiceServer
+}
+
+func (s *service) Echo(ctx context.Context, req *pb.StringMessage) (*pb.StringMessage, error) {
+	if req.Value == "" {
+		return nil, status.Errorf(codes.Unimplemented, "value is empty")
+	}
+	return &pb.StringMessage{
+		Value:     req.Value,
+		Timestamp: ptypes.TimestampNow(),
+	}, nil
+}
+
+// func (s *service) mustEmbedUnimplementedEchoServiceServer() {}