class Labkit::Tracing::GRPC::ClientInterceptor

GRPCClientInterceptor is a client-side GRPC interceptor for instrumenting GRPC calls with distributed tracing

Public Instance Methods

bidi_streamer(requests:, call:, method:, metadata:) { || ... } click to toggle source
# File lib/labkit/tracing/grpc/client_interceptor.rb, line 29
def bidi_streamer(requests:, call:, method:, metadata:)
  wrap_with_tracing(method, "bidi_stream", metadata) { yield }
end
client_streamer(requests:, call:, method:, metadata:) { || ... } click to toggle source
# File lib/labkit/tracing/grpc/client_interceptor.rb, line 21
def client_streamer(requests:, call:, method:, metadata:)
  wrap_with_tracing(method, "client_stream", metadata) { yield }
end
request_response(request:, call:, method:, metadata:) { || ... } click to toggle source
# File lib/labkit/tracing/grpc/client_interceptor.rb, line 17
def request_response(request:, call:, method:, metadata:)
  wrap_with_tracing(method, "unary", metadata) { yield }
end
server_streamer(request:, call:, method:, metadata:) { || ... } click to toggle source
# File lib/labkit/tracing/grpc/client_interceptor.rb, line 25
def server_streamer(request:, call:, method:, metadata:)
  wrap_with_tracing(method, "server_stream", metadata) { yield }
end

Private Instance Methods

wrap_with_tracing(method, grpc_type, metadata) { || ... } click to toggle source
# File lib/labkit/tracing/grpc/client_interceptor.rb, line 35
def wrap_with_tracing(method, grpc_type, metadata)
  tags = { "component" => "grpc", "span.kind" => "client", "grpc.method" => method, "grpc.type" => grpc_type }

  TracingUtils.with_tracing(operation_name: "grpc:#{method}", tags: tags) do |span|
    OpenTracing.inject(span.context, OpenTracing::FORMAT_TEXT_MAP, metadata)

    yield
  end
end