kubernetes/vendor/github.com/grpc-ecosystem/go-grpc-prometheus/server_metrics.go

type ServerMetrics …

// NewServerMetrics returns a ServerMetrics object. Use a new instance of
// ServerMetrics when not using the default Prometheus metrics registry, for
// example when wanting to control which metrics are added to a registry as
// opposed to automatically adding metrics via init functions.
func NewServerMetrics(counterOpts ...CounterOption) *ServerMetrics { … }

// EnableHandlingTimeHistogram enables histograms being registered when
// registering the ServerMetrics on a Prometheus registry. Histograms can be
// expensive on Prometheus servers. It takes options to configure histogram
// options such as the defined buckets.
func (m *ServerMetrics) EnableHandlingTimeHistogram(opts ...HistogramOption) { … }

// Describe sends the super-set of all possible descriptors of metrics
// collected by this Collector to the provided channel and returns once
// the last descriptor has been sent.
func (m *ServerMetrics) Describe(ch chan<- *prom.Desc) { … }

// Collect is called by the Prometheus registry when collecting
// metrics. The implementation sends each collected metric via the
// provided channel and returns once the last metric has been sent.
func (m *ServerMetrics) Collect(ch chan<- prom.Metric) { … }

// UnaryServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Unary RPCs.
func (m *ServerMetrics) UnaryServerInterceptor() func(ctx context.Context, req interface{ … }

// StreamServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Streaming RPCs.
func (m *ServerMetrics) StreamServerInterceptor() func(srv interface{ … }

// InitializeMetrics initializes all metrics, with their appropriate null
// value, for all gRPC methods registered on a gRPC server. This is useful, to
// ensure that all metrics exist when collecting and querying.
func (m *ServerMetrics) InitializeMetrics(server *grpc.Server) { … }

func streamRPCType(info *grpc.StreamServerInfo) grpcType { … }

type monitoredServerStream …

func (s *monitoredServerStream) SendMsg(m interface{ … }

func (s *monitoredServerStream) RecvMsg(m interface{ … }

// preRegisterMethod is invoked on Register of a Server, allowing all gRPC services labels to be pre-populated.
func preRegisterMethod(metrics *ServerMetrics, serviceName string, mInfo *grpc.MethodInfo) { … }