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)

poetry.lock

@@ -58,6 +58,17 @@ files = [
     {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
 ]
 
+[[package]]
+name = "dishka"
+version = "1.0.0"
+description = "Minimal DI framework"
+optional = false
+python-versions = ">=3.10"
+files = [
+    {file = "dishka-1.0.0-py3-none-any.whl", hash = "sha256:d664a8f0aa26d84ca5358ecbccbd35af764cd4390b003c7aad93b7918d76ec94"},
+    {file = "dishka-1.0.0.tar.gz", hash = "sha256:faed0353e43515d3485557037ce4cb63a3acf747e32f6c6b3bf1ff286cbf689b"},
+]
+
 [[package]]
 name = "distlib"
 version = "0.3.8"
@@ -399,4 +410,4 @@ watchdog = ["watchdog (>=2.3)"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "7d672e07f8fb8e47cea10a994c28d2a312700932f1675602740638ca10ca0e20"
+content-hash = "1e2a8795b8f7a080a95a4983bef9fd54096d0ce2668526045de78c8808678987"

pyproject.toml

@@ -9,6 +9,7 @@ readme = "README.md"
 python = "^3.11"
 flask = "^3.0.3"
 redis = "^5.0.3"
+dishka = "^1.0.0"
 
 
 [tool.poetry.group.dev.dependencies]