Allow configuration of Swagger and OpenAPI JSON URL

When running in production your statistics API might be deployed to
a path like /rest/statistics instead of at the root.

dspace_statistics_api/app.py

@@ -6,6 +6,8 @@ from .database import DatabaseManager
 from .stats import get_downloads, get_views
 from .util import set_statistics_scope, validate_post_parameters
 from .config import VERSION
+from .config import SWAGGERUI_URL
+from .config import SWAGGERUI_SCHEMA_URL
 
 
 class RootResource:
@@ -198,14 +200,12 @@ api.add_route("/collections", AllStatisticsResource())
 api.add_route("/collection/{id_:uuid}", SingleStatisticsResource())
 
 # Swagger configuration
-SWAGGERUI_URL = "/swagger"  # without trailing slash
-SCHEMA_URL = "/docs/openapi.json"
-api.add_route("/docs/openapi.json", OpenAPIJSONResource())
+api.add_route(SWAGGERUI_SCHEMA_URL, OpenAPIJSONResource())
 
 register_swaggerui_app(
     api,
     SWAGGERUI_URL,
-    SCHEMA_URL,
+    SWAGGERUI_SCHEMA_URL,
     config={
         "supportedSubmitMethods": ["get", "post"],
     },

dspace_statistics_api/config.py

@@ -9,6 +9,13 @@ DATABASE_PASS = os.environ.get("DATABASE_PASS", "dspacestatistics")
 DATABASE_HOST = os.environ.get("DATABASE_HOST", "localhost")
 DATABASE_PORT = os.environ.get("DATABASE_PORT", "5432")
 
+# SwaggerUI configuration
+
+# URI path where the Swagger UI should be available (without trailing slash)
+SWAGGERUI_URL = os.environ.get("SWAGGERUI_URL", "/swagger")
+# URI path to the OpenAPI JSON schema
+SWAGGERUI_SCHEMA_URL = os.environ.get("SWAGGERUI_SCHEMA_URL", "/docs/openapi.json")
+
 VERSION = "1.4.0-dev"
 
 # vim: set sw=4 ts=4 expandtab: