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.. _param-mmjsonparse-allow_trailing:
.. _mmjsonparse.parameter.allow_trailing:
allow_trailing
==============
.. index::
single: mmjsonparse; allow_trailing
single: allow_trailing
single: trailing data
.. summary-start
Whether to allow non-whitespace data after the JSON object in find-json mode.
.. summary-end
This parameter applies to :doc:`../../configuration/modules/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
-----------
.. _mmjsonparse.parameter.allow_trailing-usage:
.. code-block:: rsyslog
# 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 :doc:`main mmjsonparse module documentation
<../../configuration/modules/mmjsonparse>`.
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