launchdarkly logging spams rails console

[AndrewRayCode]

> rails c
[1] pry(main)> [LDClient] sending 2 events: [{"kind":"index","...}]}}}]

You have to hit enter to skip past it

[eli-darkly]

I'm not very familiar with Rails, but it sounds to me like there are two issues here.

1. You're getting more log output than you want. The SDK uses the standard Rails.logger, and the particular message you copied is logged at debug level. So if you set Rails.logger.level to :info, :warn, or :error, the debug messages won't appear.

2. Log messages are appearing in the Rails console and this requires you to hit Enter. I don't know why that happens, but again we're using a standard Rails logging mechanism so I wouldn't expect this behavior to be specific to our SDK. You should be able to redirect the logger to a file, if that's what you prefer.

[AndrewRayCode]

hi eli

[eli-darkly]

Hey!

[eli-darkly]

Was my comment helpful? Should I close the issue?

[eli-darkly]

It's been three weeks with no update, so I'm closing this issue. Please feel free to reopen it if you have more information or questions.

[prem-prakash]

It would be nice to be able to choose a logger or at least the log level for the LD logger instance.

I see it is doable through the initializer of the client. Good job! Thanks

 logger = if ENV.fetch('SUPRESS_LAUNCHDARKLY_OUTPUT', false)
    ::Logger.new($stdout, level: ::Logger::ERROR)
  else
    Rails.logger
  end

  launch_darkly_sdk_key = ENV.fetch('LAUNCHDARKLY_SDK_KEY')
  ld_client_config = LaunchDarkly::Config.new(logger: logger, diagnostic_opt_out: true)
  Rails.configuration.launch_darkly_client = LaunchDarkly::LDClient.new(launch_darkly_sdk_key, ld_client_config)