Logging

APOC provide a set of store procedures in order to add log functionality:

  • apoc.log.info: logs info message

  • apoc.log.error: logs error message

  • apoc.log.warn: logs warn message

  • apoc.log.debug: logs debug message

Every log procedure has the following signature:

apoc.log.<name>(message, params)

Available configuration:

property type description

apoc.user.log.type

enum[none, safe, raw] (default value safe)

type of logging:

  • node: disable the procedures

  • safe: replace all . and whitespace (space and tab) with underscore and lowercase all characters

  • raw: left the messages as-is

apoc.user.log.window.ops

int (default value 10)

num of logs permitted in a time-window, exceeded this quota every log message will be skip

apoc.user.log.window.time

long (default value 10000)

the length (in milliseconds) of the time-window (default 10 seconds)

Example:

The following call (with the default configuration):

call apoc.log.info('Hello %s', ['World'])

produces the following output in the Neo4j log:

2019-06-25 11:02:07.458+0000 INFO  hello_world