Adding flask and heartbeat

poetry.lock

@@ -44,6 +44,17 @@ d = ["aiohttp (>=3.10)"]
 jupyter = ["ipython (>=7.8.0)", "tokenize-rt (>=3.2.0)"]
 uvloop = ["uvloop (>=0.15.2)"]
 
+[[package]]
+name = "blinker"
+version = "1.9.0"
+description = "Fast, simple object-to-object and broadcast signaling"
+optional = false
+python-versions = ">=3.9"
+files = [
+    {file = "blinker-1.9.0-py3-none-any.whl", hash = "sha256:ba0efaa9080b619ff2f3459d1d500c57bddea4a6b424b60a91141db6fd2f08bc"},
+    {file = "blinker-1.9.0.tar.gz", hash = "sha256:b4ce2265a7abece45e7cc896e98dbebe6cead56bcf805a3d23136d145f5445bf"},
+]
+
 [[package]]
 name = "click"
 version = "8.3.1"
@@ -187,6 +198,29 @@ files = [
 [package.extras]
 toml = ["tomli"]
 
+[[package]]
+name = "flask"
+version = "3.1.3"
+description = "A simple framework for building complex web applications."
+optional = false
+python-versions = ">=3.9"
+files = [
+    {file = "flask-3.1.3-py3-none-any.whl", hash = "sha256:f4bcbefc124291925f1a26446da31a5178f9483862233b23c0c96a20701f670c"},
+    {file = "flask-3.1.3.tar.gz", hash = "sha256:0ef0e52b8a9cd932855379197dd8f94047b359ca0a78695144304cb45f87c9eb"},
+]
+
+[package.dependencies]
+blinker = ">=1.9.0"
+click = ">=8.1.3"
+itsdangerous = ">=2.2.0"
+jinja2 = ">=3.1.2"
+markupsafe = ">=2.1.1"
+werkzeug = ">=3.1.0"
+
+[package.extras]
+async = ["asgiref (>=3.2)"]
+dotenv = ["python-dotenv"]
+
 [[package]]
 name = "iniconfig"
 version = "2.3.0"
@@ -198,6 +232,34 @@ files = [
     {file = "iniconfig-2.3.0.tar.gz", hash = "sha256:c76315c77db068650d49c5b56314774a7804df16fee4402c1f19d6d15d8c4730"},
 ]
 
+[[package]]
+name = "itsdangerous"
+version = "2.2.0"
+description = "Safely pass data to untrusted environments and back."
+optional = false
+python-versions = ">=3.8"
+files = [
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+    {file = "itsdangerous-2.2.0.tar.gz", hash = "sha256:e0050c0b7da1eea53ffaf149c0cfbb5c6e2e2b69c4bef22c81fa6eb73e5f6173"},
+]
+
+[[package]]
+name = "jinja2"
+version = "3.1.6"
+description = "A very fast and expressive template engine."
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "jinja2-3.1.6-py3-none-any.whl", hash = "sha256:85ece4451f492d0c13c5dd7c13a64681a86afae63a5f347908daf103ce6d2f67"},
+    {file = "jinja2-3.1.6.tar.gz", hash = "sha256:0137fb05990d35f1275a587e9aee6d56da821fc83491a0fb838183be43f66d6d"},
+]
+
+[package.dependencies]
+MarkupSafe = ">=2.0"
+
+[package.extras]
+i18n = ["Babel (>=2.7)"]
+
 [[package]]
 name = "librt"
 version = "0.8.1"
@@ -297,6 +359,104 @@ files = [
     {file = "librt-0.8.1.tar.gz", hash = "sha256:be46a14693955b3bd96014ccbdb8339ee8c9346fbe11c1b78901b55125f14c73"},
 ]
 
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+version = "3.0.3"
+description = "Safely add untrusted strings to HTML/XML markup."
+optional = false
+python-versions = ">=3.9"
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+    {file = "markupsafe-3.0.3-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:f71a396b3bf33ecaa1626c255855702aca4d3d9fea5e051b41ac59a9c1c41edc"},
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+    {file = "markupsafe-3.0.3-cp39-cp39-win_amd64.whl", hash = "sha256:7c3fb7d25180895632e5d3148dbdc29ea38ccb7fd210aa27acbd1201a1902c6e"},
+    {file = "markupsafe-3.0.3-cp39-cp39-win_arm64.whl", hash = "sha256:38664109c14ffc9e7437e86b4dceb442b0096dfe3541d7864d9cbe1da4cf36c8"},
+    {file = "markupsafe-3.0.3.tar.gz", hash = "sha256:722695808f4b6457b320fdc131280796bdceb04ab50fe1795cd540799ebe1698"},
+]
+
 [[package]]
 name = "mypy"
 version = "1.19.1"
@@ -475,6 +635,25 @@ pytest = ">=4.6"
 [package.extras]
 testing = ["fields", "hunter", "process-tests", "pytest-xdist", "virtualenv"]
 
+[[package]]
+name = "pytest-flask"
+version = "1.3.0"
+description = "A set of py.test fixtures to test Flask applications."
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "pytest-flask-1.3.0.tar.gz", hash = "sha256:58be1c97b21ba3c4d47e0a7691eb41007748506c36bf51004f78df10691fa95e"},
+    {file = "pytest_flask-1.3.0-py3-none-any.whl", hash = "sha256:c0e36e6b0fddc3b91c4362661db83fa694d1feb91fa505475be6732b5bc8c253"},
+]
+
+[package.dependencies]
+Flask = "*"
+pytest = ">=5.2"
+Werkzeug = "*"
+
+[package.extras]
+docs = ["Sphinx", "sphinx-rtd-theme"]
+
 [[package]]
 name = "ruff"
 version = "0.4.10"
@@ -512,7 +691,24 @@ files = [
     {file = "typing_extensions-4.15.0.tar.gz", hash = "sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466"},
 ]
 
+[[package]]
+name = "werkzeug"
+version = "3.1.6"
+description = "The comprehensive WSGI web application library."
+optional = false
+python-versions = ">=3.9"
+files = [
+    {file = "werkzeug-3.1.6-py3-none-any.whl", hash = "sha256:7ddf3357bb9564e407607f988f683d72038551200c704012bb9a4c523d42f131"},
+    {file = "werkzeug-3.1.6.tar.gz", hash = "sha256:210c6bede5a420a913956b4791a7f4d6843a43b6fcee4dfa08a65e93007d0d25"},
+]
+
+[package.dependencies]
+markupsafe = ">=2.1.1"
+
+[package.extras]
+watchdog = ["watchdog (>=2.3)"]
+
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.12.3"
-content-hash = "efb06015c0d080f1d2161e8367da55071f2e4a52f10cc18280eeffdc4e807eb8"
+content-hash = "f7fb383afa602afb3b938c0732135d09600d95fe974f6dbbd6300ba18965827f"

pyproject.toml

@@ -8,10 +8,12 @@ packages = [{include = "src"}]
 
 [tool.poetry.dependencies]
 python = "^3.12.3"
+flask = "^3.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.0"
 pytest-cov = "^5.0"
+pytest-flask = "^1.3"
 black = "^24.0"
 ruff = "^0.4"
 mypy = "^1.10"

src/app.py

@@ -0,0 +1,21 @@
+from flask import Flask, jsonify
+from datetime import datetime, timezone
+
+app = Flask(__name__)
+
+
+@app.get("/heartbeat")
+def heartbeat() -> tuple:
+    return (
+        jsonify(
+            {
+                "status": "ok",
+                "timestamp": datetime.now(timezone.utc).isoformat(),
+            }
+        ),
+        200,
+    )
+
+
+if __name__ == "__main__":
+    app.run(debug=True)

tests/test_heartbeat.py

@@ -0,0 +1,21 @@
+import pytest
+from src.app import app
+
+
+@pytest.fixture
+def client():
+    app.config["TESTING"] = True
+    with app.test_client() as client:
+        yield client
+
+
+def test_heartbeat_status_code(client):
+    response = client.get("/heartbeat")
+    assert response.status_code == 200
+
+
+def test_heartbeat_payload(client):
+    response = client.get("/heartbeat")
+    data = response.get_json()
+    assert data["status"] == "ok"
+    assert "timestamp" in data