fluent-plugin-flatten-hash

A fluentd plugin to flatten nested hash structure as a flat record with unique keys generated by its path for each values.

Installation

Add this line to your application's Gemfile:

gem 'fluent-plugin-flatten-hash'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fluent-plugin-flatten-hash

Configuration

You can set a configuration like below:

<match message>
  type flatten_hash
  add_tag_prefix flattened.
  separator _
</match>

In this configuration, if you get a following nested/complex message:

{
  "message":{
    "today":"good day",
    "tommorow":{
      "is":{
        "a":{
          "bad":"day"
        }
      }
    }
  }
  "days":[
    "2013/08/24",
    "2013/08/25"
  ]
}

The message is flattened like below:

{
  "message_today":"good day",
  "message_tommorow_is_a_bad":"day"
  "days_0" => "2013/08/24",
  "days_1" => "2013/08/25"
}

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

Mixins

• HandleTagNameMixin

Copyright

Author	Masahiro Sano
Copyright	Copyright (c) 2013- Masahiro Sano
License	MIT License