refactor(deps)!: Make opentelemetry an optional dependency #369
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Summary of Changes
Hello @holtskinner, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request refactors our dependency management by transitioning OpenTelemetry from a mandatory to an optional dependency. The primary goal is to reduce the default installation size of the SDK and provide users with the flexibility to opt-in to telemetry features only when needed. I've implemented a robust fallback mechanism to ensure that the SDK's tracing capabilities are disabled gracefully if OpenTelemetry is not installed, preventing runtime errors.
Highlights
- Optional OpenTelemetry Dependency: I've made OpenTelemetry an optional dependency, meaning it's no longer required for a base installation of the SDK. This reduces the default installation footprint.
- New
telemetryExtra: A newtelemetryextra has been introduced inpyproject.toml. Users can now explicitly install OpenTelemetry and its related dependencies by installinga2a-sdk[telemetry]. - Graceful Degradation for Tracing: The
src/a2a/utils/telemetry.pymodule now includes atry...except ImportErrorblock for OpenTelemetry. If OpenTelemetry is not installed, tracing functions will gracefully degrade to no-op implementations, ensuring the SDK remains functional without the optional dependency. - Documentation Update: The
README.mdhas been updated to include clear instructions on how to install the SDK with the newtelemetryextra using bothuvandpip.
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Code Review
This pull request refactors the project to make OpenTelemetry an optional dependency, which reduces the base installation footprint. The changes in pyproject.toml and README.md establish and document the new telemetry extra.
The core logic in src/a2a/utils/telemetry.py handles the absence of opentelemetry using a no-op pattern. There's a critical issue with the current implementation that will cause problems with static type analysis tools like mypy, which is part of this project's development dependencies. The review includes a code suggestion to resolve this, ensuring that the code is robust for both runtime and static analysis.
holtskinner
changed the title
🤖 I have created a release *beep* *boop* --- ## [0.3.0](v0.2.16...v0.3.0) (2025-07-31) ### ⚠ BREAKING CHANGES * **deps:** Make opentelemetry an optional dependency ([#369](#369)) * **spec:** Update Agent Card Well-Known Path to `/.well-known/agent-card.json` ([#320](#320)) * Remove custom `__getattr__` and `__setattr__` for `camelCase` fields in `types.py` ([#335](#335)) * Add mTLS to SecuritySchemes, add oauth2 metadata url field, allow Skills to specify Security ([#362](#362)) * Support for serving agent card at deprecated path ([#352](#352)) ### Features * Add `metadata` as parameter to `TaskUpdater.update_status()` ([#371](#371)) ([9444ed6](9444ed6)) * Add mTLS to SecuritySchemes, add oauth2 metadata url field, allow Skills to specify Security ([#362](#362)) ([be6c517](be6c517)) * Add RESTful API Serving ([#348](#348)) ([82a6b7c](82a6b7c)) * Add server-side support for plumbing requested and activated extensions ([#333](#333)) ([4d5b92c](4d5b92c)) * Allow agent cards (default and extended) to be dynamic ([#365](#365)) ([ee92aab](ee92aab)) * Support for serving agent card at deprecated path ([#352](#352)) ([2444034](2444034)) * support non-blocking `sendMessage` ([#349](#349)) ([70b4999](70b4999)) * Type update to support fetching extended card ([#361](#361)) ([83304bb](83304bb)) ### Bug Fixes * Add Input Validation for Task Context IDs in new_task Function ([#340](#340)) ([a7ed7ef](a7ed7ef)) * **deps:** Reduce FastAPI library required version to `0.95.0` ([#372](#372)) ([a319334](a319334)) * Remove `DeprecationWarning` for regular properties ([#345](#345)) ([2806f3e](2806f3e)) * **spec:** Add `SendMessageRequest.request` `json_name` mapping to `message` proto ([bc97cba](bc97cba)) * **spec:** Add Transport enum to specification (a2aproject/A2A#909) ([d9e463c](d9e463c)) ### Documentation * Address typos in docstrings and docs. ([#370](#370)) ([ee48d68](ee48d68)) ### Miscellaneous Chores * Add support for authenticated extended card method ([#356](#356)) ([b567e80](b567e80)) ### Code Refactoring * **deps:** Make opentelemetry an optional dependency ([#369](#369)) ([9ad8b96](9ad8b96)) * Remove custom `__getattr__` and `__setattr__` for `camelCase` fields in `types.py` ([#335](#335)) ([cd94167](cd94167)) * **spec:** Update Agent Card Well-Known Path to `/.well-known/agent-card.json` ([#320](#320)) ([270ea9b](270ea9b)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Reduce required dependencies and make new dependency group for telemetry.
Release-As: 0.3.0