fixup! Add support for Fast Stream Depends

docs/examples/fastdepends.rst

@@ -0,0 +1,54 @@
+.. _fastdepends-example:
+
+FastDepends example
+===================
+
+.. meta::
+   :keywords: Python,Dependency Injection,FastDepends,Example
+   :description: This example demonstrates a usage of the FastDepends and Dependency Injector.
+
+
+This example shows how to use ``Dependency Injector`` with `FastDepends <https://github.com/Lancetnik/FastDepends>`_.
+
+The example application is a REST API that searches for funny GIFs on the `Giphy <https://giphy.com/>`_.
+
+Example code is available on `Github <https://github.com/ets-labs/python-dependency-injector/tree/master/tests/unit/wiringfastdepends>`_.
+
+Quick sample
+------------
+
+Just use it within ``Depends``
+
+.. code-block:: python
+
+    import sys
+
+    from dependency_injector import containers, providers
+    from dependency_injector.wiring import inject, Provide
+    from fast_depends import Depends
+
+
+    class CoefficientService:
+        @staticmethod
+        def get_coefficient() -> float:
+            return 1.2
+
+
+    class Container(containers.DeclarativeContainer):
+        service = providers.Factory(CoefficientService)
+
+
+    @inject
+    def apply_coefficient(
+        a: int,
+        coefficient_provider: CoefficientService = Depends(Provide[Container.service]),
+    ) -> float:
+        return a * coefficient_provider.get_coefficient()
+
+
+    container = Container()
+    container.wire(modules=[sys.modules[__name__]])
+
+    assert apply_coefficient(100) == 120.0
+
+

requirements-dev.txt

@@ -20,5 +20,6 @@ scipy
 boto3
 mypy_boto3_s3
 typing_extensions
+fast-depends
 
 -r requirements-ext.txt

tests/unit/samples/wiringfastdepends/sample.py

@@ -0,0 +1,37 @@
+from dependency_injector.wiring import inject, Provide
+from fast_depends import Depends
+
+# Runtime import to avoid syntax errors in samples on Python < 3.5 and reach top-dir
+import os
+
+_SAMPLES_DIR = os.path.abspath(
+    os.path.sep.join(
+        (
+            os.path.dirname(__file__),
+            "../samples/",
+        )
+    ),
+)
+import sys
+
+sys.path.append(_SAMPLES_DIR)
+
+
+from wiringfastdepends.sample import CoefficientService, Container
+
+
+
+@inject
+def apply_coefficient(
+    a: int,
+    coefficient_provider: CoefficientService = Depends(Provide[Container.service]),
+) -> float:
+    return a * coefficient_provider.get_coefficient()
+
+
+container = Container()
+container.wire(modules=[sys.modules[__name__]])
+
+
+def test_wire_positive() -> None:
+    assert apply_coefficient(100) == 120.0

tests/unit/wiring/test_fastdepends.py

@@ -0,0 +1,30 @@
+
+import sys
+
+from dependency_injector import containers, providers
+from dependency_injector.wiring import inject, Provide
+from fast_depends import Depends
+
+
+class CoefficientService:
+    @staticmethod
+    def get_coefficient() -> float:
+        return 1.2
+
+
+class Container(containers.DeclarativeContainer):
+    service = providers.Factory(CoefficientService)
+
+
+@inject
+def apply_coefficient(
+    a: int,
+    coefficient_provider: CoefficientService = Depends(Provide[Container.service]),
+) -> float:
+    return a * coefficient_provider.get_coefficient()
+
+
+container = Container()
+container.wire(modules=[sys.modules[__name__]])
+
+assert apply_coefficient(100) == 120.0

tox.ini

@@ -17,6 +17,7 @@ deps=
     mypy_boto3_s3
     pydantic-settings
     werkzeug
+    fast-depends
 extras=
     yaml
 commands = pytest
@@ -44,6 +45,7 @@ deps =
     boto3
     mypy_boto3_s3
     werkzeug
+    fast-depends
 commands = pytest -m pydantic
 
 [testenv:coveralls]