Class: StackifyRubyAPM::Spies::HTTPRbSpy Private

Inherits:
Object
  • Object
show all
Defined in:
lib/stackify_apm/spies/httprb.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Instance Method Summary collapse

Instance Method Details

#install ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/stackify_apm/spies/httprb.rb', line 11

def install
  HTTP::Client.class_eval do
    alias_method 'perform_without_apm', 'perform'

    # Make HTTP request
    def perform(req, options)
      return perform_without_apm(req, options) unless StackifyRubyAPM.current_transaction

      begin
        method = req.verb.upcase
        uri = req.uri.to_s.strip
        name = "#{method} #{uri}"
        type = "ext.httprb.#{method}"

        ctx = Span::Context.new(
          CATEGORY: 'Web External',
          SUBCATEGORY: 'Execute',
          URL: uri,
          STATUS: '',
          METHOD: method
        )
      rescue Exception => e
        StackifyRubyAPM.agent.error "[HTTPRbSpy] Error: creating span context."
        StackifyRubyAPM.agent.error "[HTTPRbSpy] #{e.inspect}"
        return perform_without_apm(req, options)
      end

      StackifyRubyAPM.span name, type, context: ctx do
        res = perform_without_apm(req, options)

        begin
          ctx.update_status(res.code)

          if StackifyRubyAPM.agent.config.prefix_enabled
            ctx.update_request_body(req.body.source || "")
            ctx.update_request_headers(req.headers || Hash.new)
            ctx.update_response_body(res.body || "")
            ctx.update_response_headers(res.headers || Hash.new)
          end
        rescue Exception => e
          StackifyRubyAPM.agent.error '[HTTPRbSpy] Error: getting status code or updating request/response context.'
          StackifyRubyAPM.agent.error "[HTTPRbSpy] #{e.inspect}"
        end

        res
      end
    end
  end
end