Class: SemanticLogger::Formatters::Logfmt

Inherits:
Raw
  • Object
show all
Defined in:
lib/semantic_logger/formatters/logfmt.rb

Overview

Produces logfmt formatted messages

The following fields are extracted from the raw log and included in the formatted message:

:timestamp, :level, :name, :message, :duration, :tags, :named_tags

E.g.

timestamp="2020-07-20T08:32:05.375276Z" level=info name="DefaultTest" base="breakfast" spaces="second breakfast" double_quotes="\"elevensies\"" single_quotes="'lunch'" tag="success"

All timestamps are ISO8601 formatteed All user supplied values are escaped and surrounded by double quotes to avoid ambiguious message delimeters tags are treated as keys with boolean values. Tag names are not formatted or validated, ensure you use valid logfmt format for tag names. named_tags are flattened are merged into the top level message field. Any conflicting fields are overridden. payload values take precedence over tags and named_tags. Any conflicting fields are overridden.

Futher Reading brandur.org/logfmt

Instance Attribute Summary

Attributes inherited from Raw

#hash, #time_key

Attributes inherited from Base

#filter, #name

Instance Method Summary collapse

Methods inherited from Raw

#application, #duration, #environment, #exception, #file_name_and_line, #host, #level, #message, #metric, #name, #named_tags, #payload, #pid, #tags, #thread_name, #time

Methods inherited from Base

#backtrace, #fast_tag, #level, #level=, #log, #measure, #named_tags, #pop_tags, #push_tags, #should_log?, #silence, #tagged, #tags

Constructor Details

#initialize(time_format: :iso_8601, time_key: :timestamp, **args) ⇒ Logfmt

Returns a new instance of Logfmt.



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# File 'lib/semantic_logger/formatters/logfmt.rb', line 21

def initialize(time_format: :iso_8601, time_key: :timestamp, **args)
  super
end

Instance Method Details

#call(log, logger) ⇒ Object 



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# File 'lib/semantic_logger/formatters/logfmt.rb', line 25

def call(log, logger)
  @raw = super

  raw_to_logfmt
end