init

flask_demo_api/main.py

@@ -1,6 +1,13 @@
 from flask import Flask
+from routers.key import key_bp
 
 
 def app_factory() -> Flask:
     app = Flask(__name__)
+    app.register_blueprint(key_bp)
     return app
+
+
+if __name__ == "__main__":
+    app = app_factory()
+    app.run(debug=True)

flask_demo_api/protocols/models.py

@@ -0,0 +1,7 @@
+from dataclasses import dataclass
+
+
+@dataclass()
+class KeyDTO:
+    key: str
+    val: str

flask_demo_api/protocols/repository.py

@@ -0,0 +1,18 @@
+from abc import abstractmethod
+from typing import Protocol
+
+from flask_demo_api.protocols.models import KeyDTO
+
+
+class Repository(Protocol):
+    @abstractmethod
+    def get_key(self, obj: KeyDTO) -> KeyDTO | None:
+        raise NotImplementedError
+
+    @abstractmethod
+    def add_key(self, obj: KeyDTO) -> KeyDTO:
+        raise NotImplementedError
+
+    @abstractmethod
+    def put_key(self, obj: KeyDTO) -> KeyDTO:
+        raise NotImplementedError

flask_demo_api/repository/redis.py

@@ -0,0 +1,22 @@
+import redis
+
+from flask_demo_api.protocols.models import KeyDTO
+from flask_demo_api.protocols.repository import Repository
+
+
+class RedisRepository(Repository):
+    def __init__(self, redis_pool: redis.Redis) -> None:
+        self.pool = redis_pool
+
+    def get_key(self, obj: KeyDTO) -> KeyDTO | None:
+        data = self.pool.get(obj.key)
+        if not data:
+            return None
+        return KeyDTO(key=obj.key, val=str(data))
+
+    def add_key(self, obj: KeyDTO) -> KeyDTO:
+        self.pool.set(obj.key, obj.val)
+        return KeyDTO(key="3", val="4")
+
+    def put_key(self, obj: KeyDTO) -> KeyDTO:
+        return KeyDTO(key="5", val="6")

flask_demo_api/routers/key.py

@@ -0,0 +1,42 @@
+from flask import Blueprint, jsonify, request
+
+key_bp = Blueprint("key_bp", __name__)
+
+
+@key_bp.route("/", methods=["POST"])
+def past_key():
+    json_data = request.get_json()
+
+    if json_data:
+        return (
+            jsonify({"message": "Received JSON data successfully", "data": json_data}),
+            200,
+        )
+    else:
+        return jsonify({"message": "No JSON data received"}), 400
+
+
+@key_bp.route("/", methods=["GET"])
+def get_key():
+    json_data = request.args.get("key")
+
+    if json_data:
+        return (
+            jsonify({"message": "Received JSON data successfully", "data": json_data}),
+            200,
+        )
+    else:
+        return jsonify({"message": "No JSON data received"}), 400
+
+
+@key_bp.route("/", methods=["PUT"])
+def put_key():
+    json_data = request.get_json()
+
+    if json_data:
+        return (
+            jsonify({"message": "Received JSON data successfully", "data": json_data}),
+            200,
+        )
+    else:
+        return jsonify({"message": "No JSON data received"}), 400

flask_demo_api/usecase/get.py

@@ -0,0 +1,13 @@
+from flask_demo_api.protocols.models import KeyDTO
+from flask_demo_api.protocols.repository import Repository
+
+
+class GetKey:
+    def __init__(
+        self,
+        repository: Repository,
+    ) -> None:
+        self.repository = repository
+
+    def __call__(self, request: KeyDTO) -> KeyDTO | None:
+        return self.repository.get_key(obj=request)