The debug node

The debug node logs all incoming data with erlang's lager framework and emits it, without touching it. Where the logs will be written, depends on the lager config.

The debug message will include the current data-item converted to a string.

See rest api for how to read the produced logs.

Example

|debug()


|debug('error')


%% [since 0.19.13]
|debug('warning')
.where(lambda: empty("data.topic") OR empty("data.stream_id"))
.message('Topic or StreamId is empty!')

Parameters

Parameter	Description	Default
[node] level (string)	log level (see below)	'notice'
message (string) [since 0.19.13]	custom message that is written to the log	''
where (lambda) [since 0.19.13]	lambda expression, if evaluates as true, then logging will be performed	undefined

The level parameter must have one of the following values:

log_level
debug
info
notice
warning
error
critical
alert