python setup using fastapi

.gitignore

@@ -161,3 +161,8 @@ cython_debug/
 
 composer.phar
 src/php/vendor/
+
+
+__pycache__
+cache
+venv

src/python/app.py

@@ -0,0 +1,39 @@
+import pathlib
+import qrcode
+
+from datetime import datetime
+from hashlib import md5
+
+from fastapi import FastAPI
+from fastapi.responses import FileResponse
+
+
+app = FastAPI()
+
+
+@app.get("/")
+def generate_qr(chl: str):
+    date = datetime.now().strftime("%Y/%m/%d")
+    chl_hash = md5(chl.encode()).hexdigest()
+
+    cache_path = pathlib.Path("cache") / date
+    cache_path.mkdir(parents=True, exist_ok=True)
+
+    file_name = f"{chl_hash}.png"
+    headers = {"X-QRR-Hash": chl_hash, "X-QRR-Cache": "HIT"}
+
+    img_path = cache_path / file_name
+
+    if not img_path.exists():
+        headers["X-QRR-Cache"] = "MISS"
+
+        qr = qrcode.QRCode(
+            box_size=10,
+            border=4,
+        )
+        qr.add_data(chl)
+        qr.make(fit=True)
+        img = qr.make_image(back_color="transparent")
+        img.save(str(img_path))
+
+    return FileResponse(path=img_path, media_type="image/png", headers=headers)

src/python/requirements.txt

@@ -0,0 +1,39 @@
+annotated-types==0.7.0
+anyio==4.4.0
+certifi==2024.6.2
+click==8.1.7
+dnspython==2.6.1
+email_validator==2.2.0
+exceptiongroup==1.2.1
+fastapi==0.111.0
+fastapi-cli==0.0.4
+h11==0.14.0
+httpcore==1.0.5
+httptools==0.6.1
+httpx==0.27.0
+idna==3.7
+Jinja2==3.1.4
+markdown-it-py==3.0.0
+MarkupSafe==2.1.5
+mdurl==0.1.2
+orjson==3.10.5
+pillow==10.3.0
+pydantic==2.7.4
+pydantic_core==2.18.4
+Pygments==2.18.0
+pypng==0.20220715.0
+python-dotenv==1.0.1
+python-multipart==0.0.9
+PyYAML==6.0.1
+qrcode==7.4.2
+rich==13.7.1
+shellingham==1.5.4
+sniffio==1.3.1
+starlette==0.37.2
+typer==0.12.3
+typing_extensions==4.12.2
+ujson==5.10.0
+uvicorn==0.30.1
+uvloop==0.19.0
+watchfiles==0.22.0
+websockets==12.0