OpenTelemetry urllib Instrumentation

|pypi|

.. |pypi| image:: https://badge.fury.io/py/opentelemetry-instrumentation-urllib.svg :target: https://pypi.org/project/opentelemetry-instrumentation-urllib/

This library allows tracing HTTP requests made by the urllib <https://docs.python.org/3/library/urllib.html>_ library.

Installation

::

 pip install opentelemetry-instrumentation-urllib

Configuration

Request/Response hooks

The urllib instrumentation supports extending tracing behavior with the help of request and response hooks. These are functions that are called back by the instrumentation right after a Span is created for a request and right before the span is finished processing a response respectively. The hooks can be configured as follows:

.. code:: python

# `request_obj` is an instance of urllib.request.Request
def request_hook(span, request_obj):
    pass

# `request_obj` is an instance of urllib.request.Request
# `response` is an instance of http.client.HTTPResponse
def response_hook(span, request_obj, response)
    pass

URLLibInstrumentor.instrument(
    request_hook=request_hook, response_hook=response_hook)
)

Exclude lists

To exclude certain URLs from being tracked, set the environment variable OTEL_PYTHON_URLLIB_EXCLUDED_URLS (or OTEL_PYTHON_EXCLUDED_URLS as fallback) with comma delimited regexes representing which URLs to exclude.

For example,

::

export OTEL_PYTHON_URLLIB_EXCLUDED_URLS="client/.*/info,healthcheck"

will exclude requests such as https://site/client/123/info and https://site/xyz/healthcheck.

References

• OpenTelemetry urllib Instrumentation <https://opentelemetry-python-contrib.readthedocs.io/en/latest/instrumentation/urllib/urllib.html>_
• OpenTelemetry Project <https://opentelemetry.io/>_
• OpenTelemetry Python Examples <https://github.com/open-telemetry/opentelemetry-python/tree/main/docs/examples>_