src/flask_day_54/application/get_greeting.py

@@ -0,0 +1,12 @@
+## @file get_greeting.py
+#  @brief Use case that provides the greeting.
+"""Use case that provides the greeting."""
+
+from flask_day_54.domain.constants import GREETING
+
+
+## @brief Return the greeting to show the user.
+#  @return The greeting text.
+def get_greeting() -> str:
+    """Return the greeting to show the user."""
+    return GREETING

src/flask_day_54/presentation/hello.py

@@ -0,0 +1,18 @@
+## @file hello.py
+#  @brief The minimal Flask application of lectures 1 and 2.
+"""The minimal Flask application of lectures 1 and 2."""
+
+from flask import Flask
+
+from flask_day_54.application.get_greeting import get_greeting
+
+## @brief The Flask application object.
+app = Flask(__name__)
+
+
+## @brief Handle GET / and answer with the greeting.
+#  @return The greeting as the response body.
+@app.route("/")
+def hello_world() -> str:
+    """Answer the root route with the greeting."""
+    return get_greeting()