asgi/wsgi mounting implemented

2025-12-03 12:10:28 +03:00
parent 831eee5d01
commit 0d0d1aec80
13 changed files with 2528 additions and 7 deletions
@@ -0,0 +1,112 @@
+"""
+Example Flask application for PyServe ASGI mounting.
+
+This demonstrates how to create a Flask application that can be
+mounted at a specific path in PyServe (via WSGI-to-ASGI adapter).
+"""
+
+from typing import Optional
+
+try:
+    from flask import Flask, jsonify, request
+except ImportError:
+    raise ImportError(
+        "Flask is not installed. Install with: pip install flask"
+    )
+
+
+app = Flask(__name__)
+
+users_db = {
+    1: {"id": 1, "name": "Alice", "email": "alice@example.com"},
+    2: {"id": 2, "name": "Bob", "email": "bob@example.com"},
+}
+
+
+@app.route("/")
+def root():
+    return jsonify({"message": "Welcome to Flask mounted in PyServe!"})
+
+
+@app.route("/health")
+def health_check():
+    return jsonify({"status": "healthy", "app": "flask"})
+
+
+@app.route("/users")
+def list_users():
+    return jsonify({"users": list(users_db.values()), "count": len(users_db)})
+
+
+@app.route("/users/<int:user_id>")
+def get_user(user_id: int):
+    if user_id not in users_db:
+        return jsonify({"error": "User not found"}), 404
+    return jsonify(users_db[user_id])
+
+
+@app.route("/users", methods=["POST"])
+def create_user():
+    data = request.get_json()
+    if not data or "name" not in data:
+        return jsonify({"error": "Name is required"}), 400
+
+    new_id = max(users_db.keys()) + 1 if users_db else 1
+    users_db[new_id] = {
+        "id": new_id,
+        "name": data["name"],
+        "email": data.get("email", ""),
+    }
+    return jsonify({"message": f"User created with ID {new_id}", "user": users_db[new_id]}), 201
+
+
+@app.route("/users/<int:user_id>", methods=["PUT"])
+def update_user(user_id: int):
+    if user_id not in users_db:
+        return jsonify({"error": "User not found"}), 404
+
+    data = request.get_json()
+    if data:
+        if "name" in data:
+            users_db[user_id]["name"] = data["name"]
+        if "email" in data:
+            users_db[user_id]["email"] = data["email"]
+
+    return jsonify({"message": f"User {user_id} updated", "user": users_db[user_id]})
+
+
+@app.route("/users/<int:user_id>", methods=["DELETE"])
+def delete_user(user_id: int):
+    if user_id not in users_db:
+        return jsonify({"error": "User not found"}), 404
+
+    del users_db[user_id]
+    return jsonify({"message": f"User {user_id} deleted"})
+
+
+def create_app(config: Optional[dict] = None) -> Flask:
+    application = Flask(__name__)
+
+    if config:
+        application.config.update(config)
+
+    @application.route("/")
+    def factory_root():
+        return jsonify({
+            "message": "Welcome to Flask (factory) mounted in PyServe!",
+            "config": config or {},
+        })
+
+    @application.route("/health")
+    def factory_health():
+        return jsonify({"status": "healthy", "app": "flask-factory"})
+
+    @application.route("/echo/<message>")
+    def echo(message: str):
+        return jsonify({"echo": message})
+
+    return application
+
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=8002, debug=True)