Add cache example (#2232)

examples/cache/main.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"github.com/asim/go-micro/examples/v3/cache/handler"
+	pb "github.com/asim/go-micro/examples/v3/cache/proto"
+
+	"github.com/asim/go-micro/v3"
+	log "github.com/asim/go-micro/v3/logger"
+)
+
+var (
+	service = "go.micro.srv.cache"
+	version = "latest"
+)
+
+func main() {
+	// Create service
+	srv := micro.NewService(
+		micro.Name(service),
+		micro.Version(version),
+	)
+	srv.Init()
+
+	// Register handler
+	pb.RegisterCacheHandler(srv.Server(), handler.NewCache())
+
+	// Run service
+	if err := srv.Run(); err != nil {
+		log.Fatal(err)
+	}
+}