Class: Logtail::Logger::AugmentedFormatter

Inherits:
Formatter
  • Object
show all
Defined in:
lib/logtail/logger.rb

Overview

Structures your log messages as strings and appends metadata if ‘Logtail::Config.instance.append_metadata?` is true.

Example message with metdata:

My log message @metadata {"level":"info","dt":"2016-09-01T07:00:00.000000-05:00"}

Constant Summary collapse

METADATA_CALLOUT = 
" @metadata ".freeze
NEW_LINE = 
"\n".freeze
ESCAPED_NEW_LINE = 
"\\n".freeze

Constants inherited from Formatter

Formatter::EMPTY_ARRAY, Formatter::SEVERITY_MAP

Instance Method Summary collapse

Instance Method Details

#call(severity, time, progname, msg) ⇒ Object 



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# File 'lib/logtail/logger.rb', line 91

def call(severity, time, progname, msg)
  log_entry = build_log_entry(severity, time, progname, msg)
  metadata = log_entry.to_json(:except => [:message])
  # use << for concatenation for performance reasons
  log_entry.message.gsub(NEW_LINE, ESCAPED_NEW_LINE) << METADATA_CALLOUT <<
    metadata << NEW_LINE
end