refactor: move async dependencies from optional to direct #386
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Based on dependency analysis, adding starlette, uvicorn, and uvicorn-worker as direct dependencies only increases installation size by ~816KB (3.5%). This minimal impact makes it reasonable to include them directly, simplifying installation for users who need async functionality while maintaining Python 3.8+ compatibility constraints.
…dencies - Remove async extras from tox.ini since deps are now direct - Update _http/__init__.py to import StarletteApplication directly - Remove try/except ImportError for starlette in aio/__init__.py - Remove error message about installing with [async] extra - Update test_asgi.py to import starlette directly - Remove test_import_error_without_starlette from test_aio.py - Fix test_http.py monkeypatch to work with direct imports
…sk apps Reverts the direct import of StarletteApplication to keep it as a dynamic import. This ensures that Flask-only users don't load the asgi module and its starlette/uvicorn dependencies unnecessarily.
Since async dependencies are now direct dependencies, we no longer need to install with [async] extras in the GitHub workflow.
maemayve approved these changes Jul 22, 2025
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Summary
This PR moves starlette, uvicorn, and uvicorn-worker from optional dependencies to direct dependencies, simplifying the installation process for users who need async functionality.
Impact Analysis
pip install functions-framework[async]Changes
pyproject.toml[async]extra dependency configurationTest Plan
All existing tests pass with 100% coverage. The async functionality remains unchanged, just the installation method is simplified.