Function reference • lgr

Logger Creates and dispatches LogEvents
`Logger` `Loggers`	Loggers
`LoggerGlue`	LoggerGlue
`print(<Logger>)` `format(<Logger>)` `print(<ancestry>)` `format(<ancestry>)`	Print a Logger Object
`logger_tree()`	Logger Tree
`print(<logger_tree>)` `format(<logger_tree>)`	Print Logger Trees
`logger_index()`	Return a data.frame of all registered loggers
`get_log_levels()` `add_log_levels()` `remove_log_levels()`	Manage Log Levels
`log_exception()` `threshold()` `console_threshold()` `add_appender()` `remove_appender()` `show_log()` `show_dt()` `show_data()`	Simple Logging
`basic_config()`	Basic Setup for the Logging System
`get_logger()` `get_logger_glue()`	Get/Create a Logger
`logger_config()` `as_logger_config()`	Logger Configuration Objects
`default_exception_handler()`	Demote an exception to a warning
Appenders Output LogEvents to a destination
`AppenderConsole`	Log to the console
`AppenderFile` `AppenderJson`	Log to a file
`AppenderFileRotating`	Log to a rotating file
`AppenderFileRotatingDate`	Log to a date-stamped rotating file
`AppenderFileRotatingTime`	Log to a time-stamped rotating file
`AppenderBuffer`	Log to a memory buffer
`print(<Appender>)`	Print an Appender object
Layouts Format LogEvents before output
`LayoutFormat`	Format Log Events as Text
`LayoutGlue`	Format Log Events as Text via glue
`LayoutJson`	Format LogEvents as JSON
LogEvent Contains the Data that is beeing logged
`LogEvent` `LogEvents`	LogEvents - The atomic unit of logging
`as_LogEvent()`	Coerce objects to LogEvent
`as.data.frame(<LogEvent>)` `as.data.table.LogEvent()` `as_tibble.LogEvent()`	Coerce LogEvents to Data Frames
`event_list()` `as_event_list()` `as.data.table.event_list()` `as.data.frame(<event_list>)`	A List of LogEvents
`print(<LogEvent>)` `format(<LogEvent>)`	Print or Format Logging Data
`toString(<LogEvent>)`	Convert a LogEvent to a character string
Filters Filter events passed to Appenders or Loggers
`.obj()`	Event Filters
`FilterForceLevel`	Override the log level of all events processed by a Logger/Appender
`FilterInject`	Inject values into all events processed by a Logger/Appender
`is_filter()`	Check if an R Object is a Filter
Utilities General utility functions. Some may only be relevant to developers that want to extend lgr.
`suspend_logging()` `unsuspend_logging()` `without_logging()` `with_logging()`	Suspend All Logging
`standardize_threshold()` `is_threshold()` `standardize_log_level()` `is_log_level()` `standardize_log_levels()` `is_log_levels()`	Standardize User-Input Log Levels to Their Integer Representation
`string_repr` `string_repr.function` `string_repr.data.frame` `string_repr.matrix` `string_repr.default`	Short string representation for R objects
`with_log_level()` `with_log_value()`	Inject Values into Logging Calls
`get_caller()` `get_user()`	Information About the System
`read_json_lines()`	Read a JSON logfile
`use_logger()`	Setup a Simple Logger for a Package
`label_levels()` `unlabel_levels()`	Label/Unlabel Log Levels
`colorize_levels()`	Colorize Levels
`pad_right` `pad_left`	Pad Character Vectors
Abstract Classes For Package developers that want to build new Appenders, Layouts or Loggers
`Appender` `Appenders`	Appenders
`Layout` `Layouts`	Abstract Class for Layouts
`Filterable`	Abstract Class for Filterables
`AppenderTable`	Abstract class for logging to tabular structures
`AppenderMemory`	Abstract class for logging to memory buffers
`CannotInitializeAbstractClassError()`	Logger Error Conditions

Reference

Logger

Appenders

Layouts

LogEvent

Filters

Utilities

Abstract Classes