Class: StackifyRubyAPM::Spies::CurbSpy Private

Inherits:
Object
  • Object
show all
Defined in:
lib/stackify_apm/spies/curb.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/curb.rb', line 10

def install
  Curl.module_eval do
    singleton_class.send(:alias_method, :http_without_apm, :http)
    def self.http(verb, url, _post_body = nil, _put_data = nil, &block)
      req = nil
      return http_without_apm(verb, url, _post_body = nil, _put_data = nil, &block) unless StackifyRubyAPM.current_transaction

      begin
        # Data configuration
        #
        method = verb
        uri = url.strip
        name = "#{method} #{uri}"
        type = "ext.Curb.#{method}"

        ctx = Span::Context.new(
          CATEGORY: 'Web External',
          SUBCATEGORY: 'Execute',
          URL: uri,
          STATUS: '',
          METHOD: method
        )
      rescue Exception => e
        StackifyRubyAPM.agent.error "[CurbSpy] Error: creating span context."
        StackifyRubyAPM.agent.error "[CurbSpy] #{e.inspect}"
        return http_without_apm(verb, url, _post_body = nil, _put_data = nil, &block)
      end

      # Creates new span from HTTP result
      #
      StackifyRubyAPM.span name, type, context: ctx do
        # Submits HTTP request
        #
        res = http_without_apm(verb, url, _post_body = nil, _put_data = nil, &block)
        begin
          # Builds span context
          #
          status_code = res.status.sub(/^0-9/, '').to_i
          ctx.update_status(status_code)

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