OpenTelemetry requests Instrumentation

This library allows tracing HTTP requests made by the requests library.

Usage

import requests
from opentelemetry.instrumentation.requests import RequestsInstrumentor

# You can optionally pass a custom TracerProvider to instrument().
RequestsInstrumentor().instrument()
response = requests.get(url="https://www.example.org/")

Configuration

Request/Response hooks

The requests 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:

# `request_obj` is an instance of requests.PreparedRequest
def request_hook(span, request_obj):
    pass

# `request_obj` is an instance of requests.PreparedRequest
# `response` is an instance of requests.Response
def response_hook(span, request_obj, response)
    pass

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

Exclude lists

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

For example,

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

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

API

opentelemetry.instrumentation.requests.get_default_span_name(method)[source]

Default implementation for name_callback, returns HTTP {method_name}. https://opentelemetry.io/docs/reference/specification/trace/semantic_conventions/http/#name

Parameters:

method (str) – string representing HTTP method

Return type:

str

Returns:

span name

class opentelemetry.instrumentation.requests.RequestsInstrumentor(*args, **kwargs)[source]

Bases: BaseInstrumentor

An instrumentor for requests See BaseInstrumentor

instrumentation_dependencies()[source]

Return a list of python packages with versions that the will be instrumented.

The format should be the same as used in requirements.txt or pyproject.toml.

For example, if an instrumentation instruments requests 1.x, this method should look like: :rtype: Collection[str]

def instrumentation_dependencies(self) -> Collection[str]:

return [‘requests ~= 1.0’]

This will ensure that the instrumentation will only be used when the specified library is present in the environment.

static uninstrument_session(session)[source]

Disables instrumentation on the session object.