def metrics_client_from_config(raw_config: config.RawConfig) -> metrics.Client:
"""Configure and return a metrics client.
This expects two configuration options:
``metrics.namespace``
The root key to prefix all metrics in this application with.
``metrics.endpoint``
A ``host:port`` pair, e.g. ``localhost:2014``. If an empty string, a
client that discards all metrics will be returned.
:param dict raw_config: The application configuration which should have
settings for the metrics client.
:return: A configured client.
:rtype: :py:class:`baseplate.metrics.Client`
"""
cfg = config.parse_config(
raw_config,
{
"metrics": {
"namespace": config.String,
"endpoint": config.Optional(config.Endpoint)
}
},
)
# pylint: disable=maybe-no-member
return metrics.make_client(cfg.metrics.namespace, cfg.metrics.endpoint)
def test_valid_endpoint(self):
client = metrics.make_client("namespace", EXAMPLE_ENDPOINT)
self.assertIsInstance(client.transport, metrics.RawTransport)
def test_no_endpoint(self):
client = metrics.make_client("namespace", None)
self.assertIsInstance(client.transport, metrics.NullTransport)
def test_valid_endpoint(self):
client = metrics.make_client("namespace", EXAMPLE_ENDPOINT)
self.assertIsInstance(client.transport, metrics.RawTransport)
def test_no_endpoint(self):
client = metrics.make_client("namespace", None)
self.assertIsInstance(client.transport, metrics.NullTransport)