.. _envoy_v3_api_file_envoy/extensions/access_loggers/stream/v3/stream.proto:

Standard Streams Access loggers
===============================




.. _extension_envoy.access_loggers.stream:

This extension may be referenced by the qualified name ``envoy.access_loggers.stream``

.. note::
  

  This extension is intended to be robust against untrusted downstream traffic. It assumes that the upstream is trusted.

.. tip::
  This extension extends and can be used with the following extension category:


  - :ref:`envoy.access_loggers <extension_category_envoy.access_loggers>`


.. _envoy_v3_api_msg_extensions.access_loggers.stream.v3.StdoutAccessLog:

extensions.access_loggers.stream.v3.StdoutAccessLog
---------------------------------------------------

:repo:`[extensions.access_loggers.stream.v3.StdoutAccessLog proto] <api/envoy/extensions/access_loggers/stream/v3/stream.proto#L20>`

Custom configuration for an :ref:`AccessLog <envoy_v3_api_msg_config.accesslog.v3.AccessLog>`
that writes log entries directly to the operating system's standard output.

.. code-block:: json

  {
    "log_format": "{...}"
  }

.. _envoy_v3_api_field_extensions.access_loggers.stream.v3.StdoutAccessLog.log_format:

log_format
  (:ref:`config.core.v3.SubstitutionFormatString <envoy_v3_api_msg_config.core.v3.SubstitutionFormatString>`, *REQUIRED*) Configuration to form access log data and format.
  If not specified, use :ref:`default format <config_access_log_default_format>`.
  
  
  


.. _envoy_v3_api_msg_extensions.access_loggers.stream.v3.StderrAccessLog:

extensions.access_loggers.stream.v3.StderrAccessLog
---------------------------------------------------

:repo:`[extensions.access_loggers.stream.v3.StderrAccessLog proto] <api/envoy/extensions/access_loggers/stream/v3/stream.proto#L31>`

Custom configuration for an :ref:`AccessLog <envoy_v3_api_msg_config.accesslog.v3.AccessLog>`
that writes log entries directly to the operating system's standard error.

.. code-block:: json

  {
    "log_format": "{...}"
  }

.. _envoy_v3_api_field_extensions.access_loggers.stream.v3.StderrAccessLog.log_format:

log_format
  (:ref:`config.core.v3.SubstitutionFormatString <envoy_v3_api_msg_config.core.v3.SubstitutionFormatString>`, *REQUIRED*) Configuration to form access log data and format.
  If not specified, use :ref:`default format <config_access_log_default_format>`.