Flask instrumentation for OpenTelemetry
Project description
This library builds on the OpenTelemetry WSGI middleware to track web requests in Flask applications.
Installation
pip install opentelemetry-instrumentation-flask
Configuration
Exclude lists
To exclude certain URLs from being tracked, set the environment variable OTEL_PYTHON_FLASK_EXCLUDED_URLS (or OTEL_PYTHON_EXCLUDED_URLS as fallback) with comma delimited regexes representing which URLs to exclude.
For example,
export OTEL_PYTHON_FLASK_EXCLUDED_URLS="client/.*/info,healthcheck"
will exclude requests such as https://site/client/123/info and https://site/xyz/healthcheck.
You can also pass the comma delimited regexes to the instrument_app method directly:
FlaskInstrumentor().instrument_app(app, excluded_urls="client/.*/info,healthcheck")
Request/Response hooks
Utilize request/reponse hooks to execute custom logic to be performed before/after performing a request. Environ is an instance of WSGIEnvironment (flask.request.environ). Response_headers is a list of key-value (tuples) representing the response headers returned from the response.
def request_hook(span: Span, environ: WSGIEnvironment):
if span and span.is_recording():
span.set_attribute("custom_user_attribute_from_request_hook", "some-value")
def response_hook(span: Span, status: str, response_headers: List):
if span and span.is_recording():
span.set_attribute("custom_user_attribute_from_response_hook", "some-value")
FlaskInstrumentation().instrument(request_hook=request_hook, response_hook=response_hook)
Flask Request object reference: https://flask.palletsprojects.com/en/2.0.x/api/#flask.Request
References
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
Hashes for opentelemetry-instrumentation-flask-0.26b1.tar.gz
Algorithm | Hash digest | |
---|---|---|
SHA256 | 62546e23a1593f5cbe01b0bcfcde8b7462b2ae497e9f478fa59def574dfdf126 |
|
MD5 | 814e73018905341c154a0d2cafcfe546 |
|
BLAKE2b-256 | 9b3e1cf4a70911d5fc907129addcd2ca4ccf8ddcca0d247a64b8763ea50f29ef |
Hashes for opentelemetry_instrumentation_flask-0.26b1-py3-none-any.whl
Algorithm | Hash digest | |
---|---|---|
SHA256 | 685ab7b04ee685f588f06cace03ff520be628395891ed9c97fb21ba35ef477de |
|
MD5 | d186ef000b313e190d269a36a14e37d5 |
|
BLAKE2b-256 | 5416f495c972b6b044acab985c726e151de3b5bcd6459f6b9b7699ec8f32c76b |