allow_trailing

Whether to allow non-whitespace data after the JSON object in find-json mode.

This parameter applies to JSON Structured Content Extraction Module (mmjsonparse).

Name:

allow_trailing

Scope:

action

Type:

boolean

Default:

on

Required?:

no

Introduced:

8.2506.0

Description

Controls whether trailing non-whitespace characters are permitted after the parsed JSON object in find-json mode.

  • on (default): Allow trailing data after the JSON object. The JSON portion will be parsed and the trailing content ignored.

  • off: Reject messages with trailing non-whitespace content after the JSON object. Such messages will be treated as non-JSON.

Whitespace characters (spaces, tabs, newlines) are always allowed after the JSON object regardless of this setting.

This parameter is only effective when mode=”find-json”.

Input usage

# Allow trailing data (default)
action(type="mmjsonparse" mode="find-json" allow_trailing="on")

# Reject messages with trailing data
action(type="mmjsonparse" mode="find-json" allow_trailing="off")

See also

See also the main mmjsonparse module documentation.


Support: rsyslog Assistant | GitHub Discussions | GitHub Issues: rsyslog source project

Contributing: Source & docs: rsyslog source project

© 2008–2025 Rainer Gerhards and others. Licensed under the Apache License 2.0.