sprockets.mixins.metrics/docs/api.rst
2019-09-02 09:18:30 -04:00

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Reference Documentation
=======================
This library defines mix-ins that record application metrics. Each mix-in
implements the same interface:
.. class:: sprockets.mixins.metrics.Mixin
.. data:: SETTINGS_KEY
Key in ``self.application.settings`` that contains this particular
mix-in's configuration data.
.. method:: record_timing(duration, *path)
:noindex:
:param float duration: number of seconds to record
:param path: timing path to record
.. code-block:: python
self.record_timing(self.request.request_time(), 'request', 'lookup')
.. method:: increase_counter(*path, amount=1)
:noindex:
:param path: counter path to increment
:keyword int amount: value to increase the counter by
.. code-block:: python
self.increase_counter('db', 'query', 'foo')
.. method:: execution_timer(*path)
:noindex:
:param path: timing path to record
This method returns a context manager that records a timing
metric to the specified path.
.. code-block:: python
with self.execution_timer('db', 'query', 'foo'):
rows = yield self.session.query('SELECT * FROM foo')
Statsd Implementation
---------------------
.. autoclass:: sprockets.mixins.metrics.statsd.StatsdMixin
:members:
.. autoclass:: sprockets.mixins.metrics.statsd.StatsDCollector
:members:
Testing Helpers
---------------
*So who actually tests that their metrics are emitted as they expect?*
Usually the answer is *no one*. Why is that? The ``testing`` module
contains some helper that make testing a little easier.
.. autoclass:: sprockets.mixins.metrics.testing.FakeStatsdServer
:members: