Contents

# frozen_string_literal: true

# Copyright 2019 OpenTelemetry Authors
#
# SPDX-License-Identifier: Apache-2.0

require_relative '../middlewares/tracer_middleware'

module OpenTelemetry
  module Adapters
    module Sinatra
      module Extensions
        # Sinatra extension that installs TracerMiddleware and provides
        # tracing for template rendering
        module TracerExtension
          # Sinatra hook after extension is registered
          def self.registered(app)
            # Create tracing `render` method
            ::Sinatra::Base.module_eval do
              def render(_engine, data, *)
                template_name = data.is_a?(Symbol) ? data : :literal

                Sinatra::Adapter.instance.tracer.in_span(
                  'sinatra.render_template',
                  attributes: { 'sinatra.template_name' => template_name.to_s }
                ) do
                  super
                end
              end
            end

            app.use Middlewares::TracerMiddleware
          end
        end
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
opentelemetry-adapters-sinatra-0.4.1	lib/opentelemetry/adapters/sinatra/extensions/tracer_extension.rb
opentelemetry-adapters-sinatra-0.4.0	lib/opentelemetry/adapters/sinatra/extensions/tracer_extension.rb
opentelemetry-adapters-sinatra-0.3.0	lib/opentelemetry/adapters/sinatra/extensions/tracer_extension.rb