Added postgres session factory, updated the version, Updated readme.

README.md

@@ -9,6 +9,7 @@ This project provides the glue between [microcosm] projects and [connexion]. It
 1. Connexion: An instance of connexion
 2. flask: An instance of flask created by connexion
 3. app: Same as flask instance.
+4. postgress_session_factory: Binds the Postgres SQLAlchemy session context to Flask
 
 The reason for providing flask and app is to make sure that connexion's version of flask overrides [microcosm-flask]'s
 app.

microcosm_connexion/factories.py

@@ -9,6 +9,11 @@
     port=typed(type=int, default_value=5000)
 )
 def configure_connexion(graph):
+    """
+    Creates and configures connexion's app instance
+    :param graph: Instance of microcosm graph
+    :return: connexion instance
+    """
     connexion_app = connexion.App(graph.metadata.import_name,
                                   port=graph.config.connexion.port,
                                   debug=graph.metadata.debug)
@@ -23,11 +28,15 @@ def configure_connexion(graph):
     return connexion_app
 
 
+@defaults(
+    db_key="db",
+)
 def configure_postgres_session_factory(graph):
     """
-    Bind the SQLAlchemy session context to Flask.
-
+    Binds the Postgres SQLAlchemy session context to Flask.
+    :param graph: Instance of microcosm graph
+    :return:
     """
     from microcosm_postgres.context import SessionContext
 
-    return register_session_factory(graph, "db", SessionContext.make)
+    return register_session_factory(graph, graph.config.postgres_session_factory.db_key, SessionContext.make)

microcosm_connexion/tests/test_factories.py

@@ -1,18 +1,29 @@
 from hamcrest import assert_that, is_, equal_to
+from microcosm_postgres.context import SessionContext
 from mock import Mock, patch
 
-from microcosm_connexion.factories import configure_connexion
+from microcosm_connexion.factories import configure_connexion, configure_postgres_session_factory
 
 
 @patch("microcosm_connexion.factories.connexion")
 def test_configure_connexion(mock_connexion):
     graph = Mock()
     connexion_instance = configure_connexion(graph)
+
     assert_that(connexion_instance, is_(equal_to(mock_connexion.App.return_value)))
 
     mock_connexion.App.assert_called_once_with(graph.metadata.import_name,
                                                port=graph.config.connexion.port,
                                                debug=graph.metadata.debug)
-
     assert_that(graph.flask, is_(equal_to(connexion_instance.app)))
     assert_that(graph.app, is_(equal_to(connexion_instance.app)))
+
+
+@patch("microcosm_connexion.factories.register_session_factory")
+def test_configure_postgres_session_factory(mock_register_session_factory):
+    graph = Mock()
+
+    assert_that(configure_postgres_session_factory(graph), is_(equal_to(mock_register_session_factory.return_value)))
+
+    mock_register_session_factory.assert_called_once_with(graph, graph.config.postgres_session_factory.db_key,
+                                                          SessionContext.make)

setup.py

@@ -8,7 +8,7 @@
 
 setup(
     name="microcosm_connexion",
-    version="0.1.0" + __QUALIFIER__,
+    version="0.2.0" + __QUALIFIER__,
     description="A python library that exposes microcosm factories for connexions",
     long_description=long_description,
     long_description_content_type="text/markdown",
@@ -41,6 +41,7 @@
         "console_scripts": [],
         "microcosm.factories": [
             "connexion = microcosm_connexion.factories:configure_connexion",
+            "postgres_session_factory = microcosm_connexion.factories:configure_postgres_session_factory",
         ],
     },
 )

tox.ini

@@ -3,7 +3,9 @@ envlist=py36, py37, py38, flake8, sdist, wheel
 skip_missing_interpreters=true
 
 [testenv]
-commands = python setup.py test
+commands =
+    pip install .[postgres]
+    python setup.py test
 
 [testenv:flake8]
 commands=flake8 microcosm_connexion