Make log and consume business info easily in your rails application!


Add this line to your application's Gemfile:

gem 'flog_ruby'

And then execute:

$ bundle

Or install it yourself as:

$ gem install flog_ruby


Get and use flogger

flogger = Flog.get(:api)

Here api is a business log group.

log your business info as your normal logger, but in better hash format. :project_visit, user_id: 123, project_id: 234, extra: {data: 'other context info.'}

Environment and Rsyslog support

In development environment, flog write log into log/flog/*.log by default.

In other environment, you can configure it use rsyslog mechanism to send info to remote logger service!

SYSLOG_ORIGIN:    log entry point origin source
SYSLOG_FACILITY:  rsyslog facility, default: local0 
FLOG_LEVEL:       logger level, default: debug 
FLOG_NOT_SYSLOG:  force not use rsyslog, use multi-log files


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at[USERNAME]/flog_ruby. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.


The gem is available as open source under the terms of the MIT License.