meter/handler: provide initial meter handler

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

meter/handler/handler_micro_http.pb.go

@@ -0,0 +1,32 @@
+// Code generated by protoc-gen-micro
+// source: handler.proto
+package pb
+
+import (
+	context "context"
+	api "github.com/unistack-org/micro/v3/api"
+	codec "github.com/unistack-org/micro/v3/codec"
+	server "github.com/unistack-org/micro/v3/server"
+)
+
+type meterServer struct {
+	MeterServer
+}
+
+func (h *meterServer) Metrics(ctx context.Context, req *Empty, rsp *codec.Frame) error {
+	return h.MeterServer.Metrics(ctx, req, rsp)
+}
+
+func RegisterMeterServer(s server.Server, sh MeterServer, opts ...server.HandlerOption) error {
+	type meter interface {
+		Metrics(ctx context.Context, req *Empty, rsp *codec.Frame) error
+	}
+	type Meter struct {
+		meter
+	}
+	h := &meterServer{sh}
+	for _, endpoint := range NewMeterEndpoints() {
+		opts = append(opts, api.WithEndpoint(endpoint))
+	}
+	return s.Handle(s.NewHandler(&Meter{h}, opts...))
+}