chore: import upstream snapshot with attribution

examples/grpc-interop/server/main.go

@@ -0,0 +1,53 @@
+// server starts a go-micro gRPC service. Any standard gRPC client
+// (Go, Python, Java, etc.) can call it — no go-micro SDK required on
+// the client side.
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	micro "go-micro.dev/v6"
+	"go-micro.dev/v6/client"
+	grpcclient "go-micro.dev/v6/client/grpc"
+	"go-micro.dev/v6/server"
+	grpcserver "go-micro.dev/v6/server/grpc"
+
+	pb "example/proto"
+)
+
+type Greeter struct{}
+
+func (g *Greeter) Hello(ctx context.Context, req *pb.HelloRequest, rsp *pb.HelloResponse) error {
+	log.Printf("Received request: name=%q", req.Name)
+	rsp.Message = "Hello " + req.Name
+	return nil
+}
+
+func main() {
+	addr := ":50051"
+
+	service := micro.NewService("greeter",
+		micro.Server(grpcserver.NewServer(
+			server.Name("greeter"),
+			server.Address(addr),
+		)),
+		micro.Client(grpcclient.NewClient(
+			client.ContentType("application/grpc+proto"),
+		)),
+	)
+
+	service.Init()
+
+	pb.RegisterGreeterHandler(service.Server(), new(Greeter))
+
+	fmt.Println("Go-Micro gRPC server listening on", addr)
+	fmt.Println()
+	fmt.Println("Call with a standard gRPC client:")
+	fmt.Println("  go run ../client/main.go")
+
+	if err := service.Run(); err != nil {
+		log.Fatal(err)
+	}
+}