Class: Appsignal::Hooks::RedisHook Private

Inherits:
Hook show all
Defined in:
lib/appsignal/hooks/redis.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

Methods inherited from Hook

#initialize, #installed?, register, #try_to_install

Constructor Details

This class inherits a constructor from Appsignal::Hooks::Hook

Instance Method Details

#dependencies_present? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'lib/appsignal/hooks/redis.rb', line 9

def dependencies_present?
  defined?(::Redis) &&
    Appsignal.config &&
    Appsignal.config[:instrument_redis]
end

#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/appsignal/hooks/redis.rb', line 15

def install
  ::Redis::Client.class_eval do
    alias process_without_appsignal process

    def process(commands, &block)
      sanitized_commands = commands.map do |command, *args|
        "#{command}#{" ?" * args.size}"
      end.join("\n")

      Appsignal.instrument "query.redis", id, sanitized_commands do
        process_without_appsignal(commands, &block)
      end
    end
  end
end