feat(traceloop-sdk): add HTTPX instrumentation support

[abhi-0203]

Summary

Adds HTTPX client instrumentation support to OpenLLMetry, implementing feature request from issue #2283.

Changes

• Added Instruments.HTTPCLIENT = 'httpclient' to the Instruments enum
• Added init_httpclient_instrumentor() function that initializes HTTPXClientInstrumentor
• Added httpx instrumentation init in the _initialize_instrument() dispatcher
• Added opentelemetry-instrumentation-httpx>=0.59b0 as a dependency in pyproject.toml

Usage

from traceloop.sdk import Traceloop
from traceloop.sdk.instruments import Instruments

Traceloop.init(
    app_name="my-app",
    instruments={Instruments.HTTPCLIENT},
)

Closes

Closes #2283

Summary by CodeRabbit

• New Features
  • Added support for HTTP client tracing, expanding the app’s instrumentation options.
  • Improved automatic detection and setup so HTTP client requests can be traced when the relevant package is available.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 6388fd1c-ea2e-47f7-9e6c-b7c6147531c8

📥 Commits

Reviewing files that changed from the base of the PR and between 93429cf and d7e0e85.

📒 Files selected for processing (3)

• packages/traceloop-sdk/pyproject.toml
• packages/traceloop-sdk/traceloop/sdk/instruments.py
• packages/traceloop-sdk/traceloop/sdk/tracing/tracing.py

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📝 Walkthrough

Walkthrough

This PR adds HTTPX client instrumentation support to the traceloop-sdk. A new HTTPCLIENT enum member is added to Instruments, a new dependency on opentelemetry-instrumentation-httpx is declared, and a new init_httpclient_instrumentor() function is wired into init_instrumentations.

Changes

HTTPX Instrumentation Support

Layer / File(s)	Summary
Instrument enum and dependency declaration packages/traceloop-sdk/traceloop/sdk/instruments.py, packages/traceloop-sdk/pyproject.toml	Adds HTTPCLIENT = "httpclient" to the Instruments enum and declares opentelemetry-instrumentation-httpx>=0.59b0 as a required dependency.
HTTPX instrumentor initialization and wiring packages/traceloop-sdk/traceloop/sdk/tracing/tracing.py	Adds init_httpclient_instrumentor() which instruments httpx via HTTPXClientInstrumentor when available and not already instrumented, and wires it into init_instrumentations via a new elif branch for Instruments.HTTPCLIENT.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Sequence Diagram(s)

sequenceDiagram
  participant Caller
  participant init_instrumentations
  participant init_httpclient_instrumentor
  participant HTTPXClientInstrumentor

  Caller->>init_instrumentations: Instruments.HTTPCLIENT
  init_instrumentations->>init_httpclient_instrumentor: call
  init_httpclient_instrumentor->>HTTPXClientInstrumentor: instrument()
  HTTPXClientInstrumentor-->>init_httpclient_instrumentor: success/failure
  init_httpclient_instrumentor-->>init_instrumentations: return True/False

Loading

Related issues: #2283 – requests support for httpx instrumentation, addressed by adding Instruments.HTTPCLIENT.

Suggested labels: enhancement, feature

Suggested reviewers: nirga

🐰 A rabbit hopped through httpx's door, Instrumented calls it never wired before, An enum grew, a package too, Tracing now sees requests anew, Hop, hop, hooray — one dependency more!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: adding HTTPX instrumentation support to traceloop-sdk.
Linked Issues check	✅ Passed	The PR adds the enum, dependency, and initializer needed for HTTPX support as requested in #2283.
Out of Scope Changes check	✅ Passed	The changes stay focused on HTTPX instrumentation support and related dependency wiring.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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