Merge pull request #929 from uber/grpcOutgoingEvent

grpc outgoing event

runtime/events.go

@@ -28,6 +28,7 @@ const (
 
 const (
 	EventThriftOutgoing = "event-thrift-outgoing"
+	EventGRPCOutgoing   = "event-grpc-outgoing"
 	EventHTTPIncoming   = "event-http-incoming"
 	EventHTTPOutgoing   = "event-http-outgoing"
 )
@@ -62,6 +63,24 @@ func (tce *ThriftOutgoingEvent) Name() string {
 	return EventThriftOutgoing
 }
 
+// GRPCOutgoingEvent captures request and response data
+type GRPCOutgoingEvent struct {
+	MethodName  string
+	ServiceName string
+
+	ReqHeaders map[string]string
+	Req        []byte
+
+	RspHeaders map[string]string
+	Rsp        []byte
+
+	Success bool
+}
+
+func (gce *GRPCOutgoingEvent) Name() string {
+	return EventGRPCOutgoing
+}
+
 // HTTPIncomingEvent captures incoming request and response data received
 type HTTPIncomingEvent struct {
 	EndpointName string // optional