Changes for Falcon 3.0.0

Mostly it seems we just need to use resp.text instead of resp.body,
including in falcon-swagger-ui (I forked the upstream one to make
this change).

See: https://falcon.readthedocs.io/en/latest/changes/3.0.0.html

dspace_statistics_api/app.py

@@ -31,7 +31,7 @@ class RootResource:
             "</html"
         )
 
-        resp.body = docs_html
+        resp.text = docs_html
 
 
 class StatusResource:
@@ -63,7 +63,7 @@ class OpenAPIJSONResource:
             # Set the version in the schema so Swagger UI can display it
             data["info"]["version"] = VERSION
 
-            resp.body = json.dumps(data)
+            resp.text = json.dumps(data)
 
 
 class AllStatisticsResource:
@@ -215,24 +215,24 @@ class SingleStatisticsResource:
                     resp.media = statistics
 
 
-api = application = falcon.API()
-api.add_route("/", RootResource())
-api.add_route("/status", StatusResource())
+app = application = falcon.App()
+app.add_route("/", RootResource())
+app.add_route("/status", StatusResource())
 
 # Item routes
-api.add_route("/items", AllStatisticsResource())
-api.add_route("/item/{id_:uuid}", SingleStatisticsResource())
+app.add_route("/items", AllStatisticsResource())
+app.add_route("/item/{id_:uuid}", SingleStatisticsResource())
 
 # Community routes
-api.add_route("/communities", AllStatisticsResource())
-api.add_route("/community/{id_:uuid}", SingleStatisticsResource())
+app.add_route("/communities", AllStatisticsResource())
+app.add_route("/community/{id_:uuid}", SingleStatisticsResource())
 
 # Collection routes
-api.add_route("/collections", AllStatisticsResource())
-api.add_route("/collection/{id_:uuid}", SingleStatisticsResource())
+app.add_route("/collections", AllStatisticsResource())
+app.add_route("/collection/{id_:uuid}", SingleStatisticsResource())
 
-# Route to the Swagger UI OpenAPI schema
-api.add_route("/docs/openapi.json", OpenAPIJSONResource())
+# Route to the Swagger UI Openapp schema
+app.add_route("/docs/openapi.json", OpenAPIJSONResource())
 
 # Path to host the Swagger UI. Keep in mind that Falcon will add a route for
 # this automatically when we register Swagger and the path will be relative
@@ -242,12 +242,12 @@ SWAGGERUI_PATH = "/swagger"
 # The *absolute* path to the OpenJSON schema. This must be absolute because
 # it will be requested by the client and must resolve absolutely. Note: the
 # name of this variable is misleading because it is actually the schema URL
-# but we pass it into the register_swaggerui_app() function as the api_url
+# but we pass it into the register_swaggerui_app() function as the app_url
 # parameter.
 SWAGGERUI_API_URL = f"{DSPACE_STATISTICS_API_URL}/docs/openapi.json"
 
 register_swaggerui_app(
-    api,
+    app,
     SWAGGERUI_PATH,
     SWAGGERUI_API_URL,
     config={

pyproject.toml

@@ -8,10 +8,10 @@ license = "GPL-3.0-only"
 [tool.poetry.dependencies]
 python = "^3.6"
 gunicorn = "^20.0.4"
-falcon = "^2.0.0"
+falcon = "3.0.0rc1"
 psycopg2-binary = "^2.8.6"
 requests = "^2.24.0"
-falcon-swagger-ui = {git = "https://github.com/alanorth/falcon-swagger-ui.git"}
+falcon-swagger-ui = {git = "https://github.com/alanorth/falcon-swagger-ui.git", rev="falcon-300b1"}
 
 [tool.poetry.dev-dependencies]
 ipython = { version = "^7.18.1", python = "^3.7" }

tests/test_api_collections.py

@@ -6,12 +6,12 @@ from unittest.mock import patch
 import pytest
 from falcon import testing
 
-from dspace_statistics_api.app import api
+from dspace_statistics_api.app import app
 
 
 @pytest.fixture
 def client():
-    return testing.TestClient(api)
+    return testing.TestClient(app)
 
 
 def test_get_collection(client):

tests/test_api_communities.py

@@ -6,12 +6,12 @@ from unittest.mock import patch
 import pytest
 from falcon import testing
 
-from dspace_statistics_api.app import api
+from dspace_statistics_api.app import app
 
 
 @pytest.fixture
 def client():
-    return testing.TestClient(api)
+    return testing.TestClient(app)
 
 
 def test_get_community(client):

tests/test_api_docs.py

@@ -3,12 +3,12 @@
 import pytest
 from falcon import testing
 
-from dspace_statistics_api.app import api
+from dspace_statistics_api.app import app
 
 
 @pytest.fixture
 def client():
-    return testing.TestClient(api)
+    return testing.TestClient(app)
 
 
 def test_get_docs(client):

tests/test_api_items.py

@@ -6,12 +6,12 @@ from unittest.mock import patch
 import pytest
 from falcon import testing
 
-from dspace_statistics_api.app import api
+from dspace_statistics_api.app import app
 
 
 @pytest.fixture
 def client():
-    return testing.TestClient(api)
+    return testing.TestClient(app)
 
 
 def test_get_item(client):