FastAPI\u306f\u3001Python\u306e\u4e16\u754c\u3067\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u308b\u9ad8\u6027\u80fd\u306aWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001FastAPI\u306e\u7279\u5fb4\u3084\u5229\u70b9\u3092\u89e3\u8aac\u3057\u3001\u4ed6\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306e\u6bd4\u8f03\u3092\u884c\u3044\u307e\u3059\u3002\u307e\u305f\u3001FastAPI\u3092\u4f7f\u3063\u305fAPI\u958b\u767a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3084\u3001\u5b9f\u969b\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u3064\u3044\u3066\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002FastAPI\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u3092\u7db2\u7f85\u3057\u3001\u52b9\u7387\u7684\u306aAPI\u958b\u767a\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u30d2\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u76ee\u6b21 <\/p>\n
FastAPI\u306f\u3001Python\u3067\u9ad8\u901f\u306bWebAPI\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u30e2\u30c0\u30f3\u306aWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002Starlette\uff08\u9ad8\u901f\u306aASGI\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\uff09\u3068Pydantic\uff08\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30d6\u30e9\u30ea\uff09\u3092\u30d9\u30fc\u30b9\u306b\u69cb\u7bc9\u3055\u308c\u3066\u304a\u308a\u3001\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u516c\u5f0f\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3067\u306f\u3001Node.js\u3084Go\u8a00\u8a9e\u3068\u540c\u7b49\u4ee5\u4e0a\u306e\u6027\u80fd\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306e\u4e3b\u306a\u7279\u5fb4\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
\u3053\u308c\u3089\u306e\u7279\u5fb4\u306b\u3088\u308a\u3001FastAPI\u306f\u958b\u767a\u8005\u306e\u751f\u7523\u6027\u3068API\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4e21\u7acb\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u512a\u308c\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3060\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306e\u4e3b\u306a\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u9ad8\u901f\u6027\u3001\u751f\u7523\u6027\u3001\u4fdd\u5b88\u6027\u306e3\u70b9\u306b\u96c6\u7d04\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306f\u3001Starlette\u306e\u9ad8\u901f\u306aASGI\u30b5\u30fc\u30d0\u30fc\u3068Pydantic\u306e\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u975e\u5e38\u306b\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u975e\u540c\u671f\u51e6\u7406\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u540c\u6642\u63a5\u7d9a\u6570\u306e\u591a\u3044API\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306f\u3001Python\u306e\u578b\u30d2\u30f3\u30c8\u3092\u6d3b\u7528\u3057\u3001API\u306e\u5b9a\u7fa9\u3092\u7c21\u6f54\u306b\u8a18\u8ff0\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u6a5f\u80fd\u306b\u3088\u308a\u3001API\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u4f5c\u6210\u3068\u4fdd\u5b88\u306b\u4fc2\u308b\u624b\u9593\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u7279\u5fb4\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u5b9f\u88c5\u30ed\u30b8\u30c3\u30af\u306b\u96c6\u4e2d\u3067\u304d\u3001\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff08app.py\uff09:<\/p>\n\n\n\n
from fastapi import FastAPI\nfrom pydantic import BaseModel\n\napp = FastAPI()\n\nclass Item(BaseModel):\n name: str\n price: float\n is_offer: bool = None\n\n@app.put(\"\/items\/{item_id}\")\nasync def update_item(item_id: int, item: Item):\n return {\"item_name\": item.name, \"item_id\": item_id}<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001Item\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\u3057\u3001PUT \/items\/{item_id}\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002Python\u306e\u578b\u30d2\u30f3\u30c8\u3068Pydantic\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001API\u306e\u5165\u529b\u3068\u51fa\u529b\u3092\u660e\u793a\u7684\u306b\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u4fdd\u5b88\u6027<\/h4>\n\n\n\n
FastAPI\u306f\u3001Python\u306e\u578b\u30d2\u30f3\u30c8\u3068Pydantic\u306b\u3088\u308b\u578b\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3067\u304d\u308b\u305f\u3081\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u6a5f\u80fd\u306b\u3088\u308a\u3001API\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u5b9f\u88c5\u306e\u4e56\u96e2\u3092\u9632\u304e\u3001\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u3092\u4f7f\u3046\u3079\u304d\u30b1\u30fc\u30b9<\/h3>\n\n\n\n
FastAPI\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u7279\u306b\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\n- \u9ad8\u901f\u306aAPI\u304c\u5fc5\u8981\u306a\u5834\u5408\n
\n- \u30ec\u30b9\u30dd\u30f3\u30b9\u6642\u9593\u304c\u91cd\u8981\u306a\u8981\u4ef6\u3067\u3042\u308bAPI\u3092\u69cb\u7bc9\u3059\u308b\u969b\u306b\u6700\u9069<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- API\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u81ea\u52d5\u751f\u6210\u304c\u671b\u307e\u3057\u3044\u5834\u5408\n
\n- API\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u4f5c\u6210\u3068\u4fdd\u5b88\u306b\u304b\u304b\u308b\u624b\u9593\u3092\u6e1b\u3089\u3057\u305f\u3044\u5834\u5408\u306b\u52b9\u679c\u7684<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- Python\u306e\u578b\u30d2\u30f3\u30c8\u3092\u6d3b\u7528\u3057\u305f\u3044\u5834\u5408\n
\n- \u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u3001Python\u306e\u578b\u30d2\u30f3\u30c8\u3092\u7a4d\u6975\u7684\u306b\u4f7f\u3044\u305f\u3044\u5834\u5408\u306b\u6700\u9069<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u975e\u540c\u671f\u51e6\u7406\u3092\u53d6\u308a\u5165\u308c\u305f\u3044\u5834\u5408\n
\n- API\u306e\u51e6\u7406\u3092\u9ad8\u901f\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u975e\u540c\u671f\u51e6\u7406\u3092\u6d3b\u7528\u3057\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u63a1\u7528\u3057\u3066\u3044\u308b\u5834\u5408\n
\n- \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u901a\u4fe1\u306bAPI\u3092\u4f7f\u3046\u5834\u5408\u3001\u8efd\u91cf\u3067\u9ad8\u901f\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u3057\u3066\u9069\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
\u4ee5\u4e0a\u306e\u3088\u3046\u306b\u3001FastAPI\u306f\u9ad8\u901f\u6027\u3001\u751f\u7523\u6027\u3001\u4fdd\u5b88\u6027\u3092\u91cd\u8996\u3057\u305fAPI\u306e\u958b\u767a\u306b\u9069\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u7279\u306b\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u91cd\u8981\u306a\u8981\u4ef6\u3067\u3042\u3063\u305f\u308a\u3001\u958b\u767a\u52b9\u7387\u3084\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u305f\u3044\u5834\u5408\u306b\u3001FastAPI\u306f\u512a\u308c\u305f\u9078\u629e\u80a2\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n\n\n\n
FastAPI\u3092\u4f7f\u3063\u3066WebAPI\u3092\u958b\u767a\u3059\u308b\u969b\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u74b0\u5883\u8a2d\u5b9a\u3001\u30b7\u30f3\u30d7\u30eb\u306aAPI\u306e\u4f5c\u6210\u65b9\u6cd5\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068HTTP\u30e1\u30bd\u30c3\u30c9\u306e\u6982\u8981\u3092\u9806\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u74b0\u5883\u8a2d\u5b9a<\/h3>\n\n\n\n
FastAPI\u306f\u3001pip\u3092\u4f7f\u3063\u3066\u7c21\u5358\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
pip install fastapi<\/pre>\n\n\n\nFastAPI\u3092\u4f7f\u3063\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001Uvicorn\u306a\u3069\u306e ASGI\u30b5\u30fc\u30d0\u30fc\u304c\u5fc5\u8981\u3067\u3059\u3002Uvicorn\u3082\u540c\u69d8\u306bpip\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
pip install uvicorn<\/pre>\n\n\n\n\u958b\u767a\u74b0\u5883\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306bFastAPI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
uvicorn main:app --reload<\/pre>\n\n\n\nmain<\/code>\u306f\u3001FastAPI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u308bPython\u30d5\u30a1\u30a4\u30eb\u306e\u540d\u524d\uff08\u4f8b\uff1amain.py<\/code>\uff09\u3001app<\/code>\u306f\u3001FastAPI\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u540d\u3067\u3059\u3002--reload<\/code>\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4ed8\u3051\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u5909\u66f4\u3092\u691c\u77e5\u3057\u3066\u81ea\u52d5\u7684\u306b\u30b5\u30fc\u30d0\u30fc\u3092\u518d\u8d77\u52d5\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\u30b7\u30f3\u30d7\u30eb\u306aAPI\u306e\u4f5c\u6210\u65b9\u6cd5<\/h3>\n\n\n\n
FastAPI\u3067\u306f\u3001@app.get()<\/code>\u3001@app.post()<\/code>\u3001@app.put()<\/code>\u3001@app.delete()<\/code>\u306a\u3069\u306e\u30c7\u30b3\u30ec\u30fc\u30bf\u3092\u4f7f\u3063\u3066\u3001API\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306aAPI\u306e\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\nfrom fastapi import FastAPI\n\napp = FastAPI()\n\n@app.get(\"\/\")\nasync def root():\n return {\"message\": \"Hello, World!\"}\n\n@app.get(\"\/items\/{item_id}\")\nasync def read_item(item_id: int):\n return {\"item_id\": item_id}<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30eb\u30fc\u30c8\u30d1\u30b9\uff08\/<\/code>\uff09\u3068\u30d1\u30b9\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308b\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\uff08\/items\/{item_id}<\/code>\uff09\u306e2\u3064\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u51e6\u7406\u306f\u3001\u975e\u540c\u671f\u95a2\u6570\uff08async def<\/code>\uff09\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068HTTP\u30e1\u30bd\u30c3\u30c9<\/h3>\n\n\n\n
FastAPI\u3067\u306f\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u30d1\u30b9\u3068HTTP\u30e1\u30bd\u30c3\u30c9\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001API\u306e\u6a5f\u80fd\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4e3b\u306aHTTP\u30e1\u30bd\u30c3\u30c9\u3068\u305d\u306e\u7528\u9014\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
\n- GET\uff1a\u30ea\u30bd\u30fc\u30b9\u306e\u53d6\u5f97<\/li>\n\n\n\n
- POST\uff1a\u65b0\u3057\u3044\u30ea\u30bd\u30fc\u30b9\u306e\u4f5c\u6210<\/li>\n\n\n\n
- PUT\uff1a\u65e2\u5b58\u306e\u30ea\u30bd\u30fc\u30b9\u306e\u66f4\u65b0<\/li>\n\n\n\n
- DELETE\uff1a\u30ea\u30bd\u30fc\u30b9\u306e\u524a\u9664<\/li>\n<\/ul>\n\n\n\n
\u30d1\u30b9\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001{\u30d1\u30e9\u30e1\u30fc\u30bf\u540d}<\/code>\u306e\u3088\u3046\u306b\u4e2d\u62ec\u5f27\u3067\u56f2\u3093\u3067\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30af\u30a8\u30ea\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001\u95a2\u6570\u306e\u5f15\u6570\u3067\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n\n\n\n@app.get(\"\/items\/\")\nasync def read_items(skip: int = 0, limit: int = 10):\n return {\"skip\": skip, \"limit\": limit}<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\/items\/?skip=0&limit=10<\/code>\u306e\u3088\u3046\u306a\u30af\u30a8\u30ea\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n\u4ee5\u4e0a\u304c\u3001FastAPI\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u306e\u6982\u8981\u3067\u3059\u3002\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u74b0\u5883\u8a2d\u5b9a\u3001\u30b7\u30f3\u30d7\u30eb\u306aAPI\u306e\u4f5c\u6210\u65b9\u6cd5\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068HTTP\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002FastAPI\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001Python\u306e\u578b\u30d2\u30f3\u30c8\u3092\u6d3b\u7528\u3057\u306a\u304c\u3089\u3001\u7c21\u6f54\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3067API\u3092\u958b\u767a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001FastAPI\u3092\u4f7f\u3063\u305fAPI\u958b\u767a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u3092\u4f7f\u3063\u305fAPI\u958b\u767a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n
FastAPI\u3092\u4f7f\u3063\u3066API\u3092\u958b\u767a\u3059\u308b\u969b\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002Pydantic\u3092\u4f7f\u3063\u305f\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001JWT\u3092\u4f7f\u3063\u305f\u8a8d\u8a3c\u3068\u8a8d\u53ef\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u9023\u643a\u3001\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u3001\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9\u3068\u81ea\u52d5\u5316\u306b\u3064\u3044\u3066\u9806\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
Pydantic\u3092\u4f7f\u3063\u305f\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n
Pydantic\u306f\u3001Python\u306e\u578b\u30d2\u30f3\u30c8\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002FastAPI\u306f\u3001Pydantic\u3092\u4f7f\u3063\u3066\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30c7\u30fc\u30bf\u3092\u81ea\u52d5\u7684\u306b\u691c\u8a3c\u3057\u307e\u3059\u3002Pydantic\u306e\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001API\u306e\u5165\u529b\u3068\u51fa\u529b\u306e\u578b\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
from pydantic import BaseModel\n\nclass Item(BaseModel):\n name: str\n description: str = None\n price: float\n tax: float = None<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001Item<\/code>\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\u3057\u3001\u5404\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u578b\u3068\u3001\u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\uff08description<\/code>\u3068tax<\/code>\uff09\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001API\u306e\u5165\u529b\u30c7\u30fc\u30bf\u304c\u81ea\u52d5\u7684\u306b\u691c\u8a3c\u3055\u308c\u3001\u578b\u304c\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306b\u306f\u30a8\u30e9\u30fc\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\nJWT\u3092\u4f7f\u3063\u305f\u8a8d\u8a3c\u3068\u8a8d\u53ef<\/h3>\n\n\n\n
JWT\uff08JSON Web Token\uff09\u306f\u3001API\u306e\u8a8d\u8a3c\u3068\u8a8d\u53ef\u306b\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30c8\u30fc\u30af\u30f3\u30d9\u30fc\u30b9\u306e\u8a8d\u8a3c\u65b9\u5f0f\u3067\u3059\u3002FastAPI\u3067\u306f\u3001python-jose<\/code>\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3063\u3066JWT\u306e\u751f\u6210\u3068\u691c\u8a3c\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\nJWT\u3092\u4f7f\u3063\u305f\u8a8d\u8a3c\u306e\u6d41\u308c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
\n- \u30e6\u30fc\u30b6\u30fc\u304c\u30ed\u30b0\u30a4\u30f3\u60c5\u5831\u3092\u9001\u4fe1<\/li>\n\n\n\n
- \u30b5\u30fc\u30d0\u30fc\u304c\u30ed\u30b0\u30a4\u30f3\u60c5\u5831\u3092\u691c\u8a3c\u3057\u3001JWT\u3092\u751f\u6210\u3057\u3066\u8fd4\u5374<\/li>\n\n\n\n
- \u4ee5\u964d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306fJWT\u3092Authorization\u30d8\u30c3\u30c0\u306b\u542b\u3081\u3066\u9001\u4fe1<\/li>\n\n\n\n
- \u30b5\u30fc\u30d0\u30fc\u306fJWT\u3092\u691c\u8a3c\u3057\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n
FastAPI\u3067\u306f\u3001Depends<\/code>\u3068Security<\/code>\u3092\u4f7f\u3063\u3066JWT\u306e\u691c\u8a3c\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\nfrom fastapi import Depends, FastAPI, HTTPException, status\nfrom fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm\nfrom jose import JWTError, jwt\n\noauth2_scheme = OAuth2PasswordBearer(tokenUrl=\"token\")\n\nasync def get_current_user(token: str = Depends(oauth2_scheme)):\n try:\n payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])\n username: str = payload.get(\"sub\")\n if username is None:\n raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED)\n return {\"username\": username}\n except JWTError:\n raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED)<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001OAuth2PasswordBearer<\/code>\u3092\u4f7f\u3063\u3066JWT\u306e\u691c\u8a3c\u3092\u884c\u3044\u3001get_current_user<\/code>\u95a2\u6570\u3067JWT\u304b\u3089\u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u9023\u643a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n
FastAPI\u3067\u306f\u3001SQLAlchemy\u306a\u3069\u306eORM\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u9023\u643a\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306f\u3001Depends<\/code>\u3092\u4f7f\u3063\u3066\u4f9d\u5b58\u95a2\u4fc2\u3092\u6ce8\u5165\u3057\u307e\u3059\u3002<\/p>\n\n\n\nfrom sqlalchemy.orm import Session\n\ndef get_db():\n db = SessionLocal()\n try:\n yield db\n finally:\n db.close()\n\n@app.post(\"\/users\/\", response_model=schemas.User)\ndef create_user(user: schemas.UserCreate, db: Session = Depends(get_db)):\n db_user = crud.get_user_by_email(db, email=user.email)\n if db_user:\n raise HTTPException(status_code=400, detail=\"Email already registered\")\n return crud.create_user(db=db, user=user)<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001get_db<\/code>\u95a2\u6570\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u53d6\u5f97\u3057\u3001create_user<\/code>\u95a2\u6570\u306e\u5f15\u6570\u306bDepends(get_db)<\/code>\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u6ce8\u5165\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u7ba1\u7406\u304c\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u3001\u30c6\u30b9\u30c8\u306e\u969b\u306b\u3082\u30e2\u30c3\u30af\u3092\u4f7f\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u306e\u65b9\u6cd5<\/h3>\n\n\n\n
FastAPI\u306f\u3001Swagger UI\u3068ReDoc\u3068\u3044\u30462\u3064\u306e\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u30c4\u30fc\u30eb\u3092\u5185\u8535\u3057\u3066\u3044\u307e\u3059\u3002API\u306e\u5b9a\u7fa9\u304b\u3089\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b\u305f\u3081\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u4fdd\u5b88\u304c\u5bb9\u6613\u3067\u3059\u3002<\/p>\n\n\n\n
Swagger UI\u306f\u3001http:\/\/localhost:8000\/docs<\/code>\u3001ReDoc\u306f\u3001http:\/\/localhost:8000\/redoc<\/code>\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u306f\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u30d1\u30b9\u3001HTTP\u30e1\u30bd\u30c3\u30c9\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30b9\u30ad\u30fc\u30de\u3001\u8a8d\u8a3c\u65b9\u6cd5\u306a\u3069\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9\u3068\u81ea\u52d5\u5316<\/h3>\n\n\n\n
FastAPI\u3067\u306f\u3001pytest<\/code>\u3092\u4f7f\u3063\u3066API\u306e\u30c6\u30b9\u30c8\u3092\u66f8\u304d\u307e\u3059\u3002TestClient<\/code>\u3092\u4f7f\u3063\u3066\u3001API\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002<\/p>\n\n\n\nfrom fastapi.testclient import TestClient\nfrom main import app\n\nclient = TestClient(app)\n\ndef test_read_main():\n response = client.get(\"\/\")\n assert response.status_code == 200\n assert response.json() == {\"message\": \"Hello, World!\"}<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u30eb\u30fc\u30c8\u30d1\u30b9\uff08\/<\/code>\uff09\u306b\u5bfe\u3059\u308bGET\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30c6\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u30c6\u30b9\u30c8\u306e\u81ea\u52d5\u5316\u306b\u306f\u3001GitHubActions\u3084CircleCI\u306a\u3069\u306eCI\u30c4\u30fc\u30eb\u3092\u4f7f\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b3\u30fc\u30c9\u306e\u5909\u66f4\u304c\u81ea\u52d5\u7684\u306b\u30c6\u30b9\u30c8\u3055\u308c\u3001\u54c1\u8cea\u306e\u7dad\u6301\u3068\u5411\u4e0a\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n\u4ee5\u4e0a\u304c\u3001FastAPI\u3092\u4f7f\u3063\u305fAPI\u958b\u767a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u6982\u8981\u3067\u3059\u3002Pydantic\u3092\u4f7f\u3063\u305f\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001JWT\u3092\u4f7f\u3063\u305f\u8a8d\u8a3c\u3068\u8a8d\u53ef\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u9023\u643a\u3001\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u3001\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9\u3068\u81ea\u52d5\u5316\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u8e0f\u307e\u3048\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u9ad8\u54c1\u8cea\u306aAPI\u3092\u958b\u767a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u6d3b\u7528\u4e8b\u4f8b<\/h2>\n\n\n\n
FastAPI\u306f\u3001\u69d8\u3005\u306a\u7528\u9014\u3067\u6d3b\u7528\u3067\u304d\u308b\u6c4e\u7528\u6027\u306e\u9ad8\u3044Web\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001FastAPI\u304c\u7279\u306b\u9069\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u3057\u3066\u3001\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3078\u306e\u9069\u7528\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306e\u30c7\u30d7\u30ed\u30a4\u3001\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9API\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3078\u306e\u9069\u7528<\/h3>\n\n\n\n
\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5c0f\u3055\u306a\u72ec\u7acb\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u306b\u5206\u5272\u3057\u307e\u3059\u3002FastAPI\u306f\u3001\u8efd\u91cf\u3067\u9ad8\u901f\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3042\u308b\u305f\u3081\u3001\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u901a\u4fe1\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u5404\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3092FastAPI\u3067\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u306e\u52b9\u7387\u5316\u3068\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u758e\u7d50\u5408\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306eOpenAPI\u30b5\u30dd\u30fc\u30c8\u306b\u3088\u308a\u3001\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u9023\u643a\u304c\u30b9\u30e0\u30fc\u30ba\u306b\u306a\u308a\u3001\u958b\u767a\u8005\u9593\u306e\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u81ea\u52d5\u751f\u6210\u3055\u308c\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306e\u4fdd\u5b88\u6027\u3082\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306e\u30c7\u30d7\u30ed\u30a4<\/h3>\n\n\n\n
FastAPI\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3092WebAPI\u3068\u3057\u3066\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u305f\u3081\u306b\u9069\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u5b66\u7fd2\u6e08\u307f\u306e\u30e2\u30c7\u30eb\u3092\u30ed\u30fc\u30c9\u3057\u3001API\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u516c\u958b\u3059\u308b\u3053\u3068\u3067\u3001\u30e2\u30c7\u30eb\u306e\u63a8\u8ad6\u3092\u4ed6\u306e\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306ePydantic\u3092\u4f7f\u3063\u3066\u3001\u30e2\u30c7\u30eb\u306e\u5165\u529b\u3068\u51fa\u529b\u306e\u30c7\u30fc\u30bf\u578b\u3092\u660e\u793a\u7684\u306b\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001API\u306e\u5229\u7528\u8005\u306f\u30e2\u30c7\u30eb\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u660e\u78ba\u306b\u7406\u89e3\u3067\u304d\u3001\u4e0d\u6b63\u306a\u5165\u529b\u306b\u3088\u308b\u30a8\u30e9\u30fc\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306f\u3001\u5b66\u7fd2\u6e08\u307f\u306e\u30e2\u30c7\u30eb\u3092FastAPI\u3067\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n
from pydantic import BaseModel\nfrom fastapi import FastAPI\nimport joblib\n\nclass InputData(BaseModel):\n feature1: float\n feature2: float\n\napp = FastAPI()\nmodel = joblib.load(\"model.pkl\")\n\n@app.post(\"\/predict\")\nasync def predict(input_data: InputData):\n prediction = model.predict([[input_data.feature1, input_data.feature2]])\n return {\"prediction\": prediction[0]}<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u5b66\u7fd2\u6e08\u307f\u306e\u30e2\u30c7\u30eb\u3092joblib\u3092\u4f7f\u3063\u3066\u30ed\u30fc\u30c9\u3057\u3001\/predict<\/code>\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3067\u63a8\u8ad6\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u5165\u529b\u30c7\u30fc\u30bf\u306fInputData<\/code>\u30af\u30e9\u30b9\u3067\u5b9a\u7fa9\u3055\u308c\u3001Pydantic\u306b\u3088\u3063\u3066\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9API<\/h3>\n\n\n\n
FastAPI\u306f\u3001\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9API\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u306e\u306b\u9069\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u3068\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u901a\u4fe1\u3092\u3001FastAPI\u3067\u5b9f\u88c5\u3057\u305fAPI\u3092\u4ecb\u3057\u3066\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
FastAPI\u306eOpenAPI\u30b5\u30dd\u30fc\u30c8\u306b\u3088\u308a\u3001API\u306e\u4ed5\u69d8\u3092\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u958b\u767a\u8005\u306b\u660e\u78ba\u306b\u4f1d\u3048\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3068\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u958b\u767a\u3092\u4e26\u884c\u3057\u3066\u9032\u3081\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u3001FastAPI\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9\u3084\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3068\u306e\u9023\u643a\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306f\u3001\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u304b\u3089\u306e\u30e6\u30fc\u30b6\u30fc\u4f5c\u6210\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3059\u308bFastAPI\u306e\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n
from fastapi import FastAPI, Depends\nfrom pydantic import BaseModel\nfrom sqlalchemy.orm import Session\n\nclass User(BaseModel):\n username: str\n email: str\n\napp = FastAPI()\n\n@app.post(\"\/users\")\nasync def create_user(user: User, db: Session = Depends(get_db)):\n db_user = models.User(username=user.username, email=user.email)\n db.add(db_user)\n db.commit()\n db.refresh(db_user)\n return db_user<\/pre>\n\n\n\n\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u304b\u3089\u306e\u30e6\u30fc\u30b6\u30fc\u4f5c\u6210\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30e6\u30fc\u30b6\u30fc\u3092\u4fdd\u5b58\u3057\u3066\u3044\u307e\u3059\u3002User<\/code>\u30af\u30e9\u30b9\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u5b9a\u7fa9\u3057\u3001Pydantic\u3067\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\u4ee5\u4e0a\u3001FastAPI\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u6d3b\u7528\u4e8b\u4f8b\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002FastAPI\u306f\u3001\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306e\u30c7\u30d7\u30ed\u30a4\u3001\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9API\u306a\u3069\u3001\u69d8\u3005\u306a\u7528\u9014\u3067\u6d3b\u7528\u3067\u304d\u308b\u6c4e\u7528\u6027\u306e\u9ad8\u3044\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002FastAPI\u306e\u7279\u5fb4\u3092\u6d3b\u304b\u3059\u3053\u3068\u3067\u3001\u958b\u767a\u306e\u52b9\u7387\u5316\u3068\u4fdd\u5b88\u6027\u306e\u5411\u4e0a\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ed6\u306ePython API\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306e\u6bd4\u8f03<\/h2>\n\n\n\n
FastAPI\u306f\u3001Python\u306eWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4e2d\u3067\u3082\u6bd4\u8f03\u7684\u65b0\u3057\u3044\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u304c\u3001\u305d\u306e\u7279\u5fb4\u3084\u6027\u80fd\u304b\u3089\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001FastAPI\u3068\u4ed6\u306ePython API\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306e\u6bd4\u8f03\u3092\u884c\u3044\u3001\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3084\u9069\u3057\u305f\u7528\u9014\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
Django RESTframework\u3068\u306e\u6bd4\u8f03<\/h3>\n\n\n\n
Django RESTframework\u306f\u3001Django\u306e\u62e1\u5f35\u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u3001API\u306e\u958b\u767a\u306b\u7279\u5316\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002Django RESTframework\u306f\u3001Django\u306e\u6301\u3064\u8c4a\u5bcc\u306a\u6a5f\u80fd\u3092\u6d3b\u7528\u3067\u304d\u308b\u305f\u3081\u3001\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001FastAPI\u306f\u3001\u8efd\u91cf\u3067\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n
Django RESTframework\u306f\u3001Django\u306e\u77e5\u8b58\u304c\u5fc5\u8981\u306a\u305f\u3081\u3001\u5b66\u7fd2\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u306a\u308b\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002FastAPI\u306f\u3001Pydantic\u3092\u4f7f\u3063\u305f\u578b\u30d2\u30f3\u30c8\u30d9\u30fc\u30b9\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u7279\u5fb4\u7684\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
Flask\u3068\u306e\u6bd4\u8f03<\/h3>\n\n\n\n
Flask\u306f\u3001Python\u306e\u30b7\u30f3\u30d7\u30eb\u306aWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3001\u62e1\u5f35\u6027\u304c\u9ad8\u3044\u3053\u3068\u304c\u7279\u5fb4\u3067\u3059\u3002FastAPI\u306f\u3001Flask\u3092\u30d9\u30fc\u30b9\u306b\u3057\u305fStarlette\u306e\u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u985e\u4f3c\u70b9\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
\u305f\u3060\u3057\u3001FastAPI\u306fFlask\u306b\u6bd4\u3079\u3066\u3001\u578b\u30d2\u30f3\u30c8\u3068Pydantic\u3092\u6d3b\u7528\u3057\u305f\u81ea\u52d5\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
Flask\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u3055\u3092\u91cd\u8996\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306f\u62e1\u5f35\u30d1\u30c3\u30b1\u30fc\u30b8\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u4e00\u65b9\u3001FastAPI\u306f\u3001AsyncIO\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u975e\u540c\u671f\u51e6\u7406\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306f\u3001FastAPI\u3068Flask\u3067\u30a2\u30a4\u30c6\u30e0\u306e\u4f5c\u6210\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u5b9f\u88c5\u3057\u305f\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n
FastAPI:<\/p>\n\n\n\n
from fastapi import FastAPI\nfrom pydantic import BaseModel\n\nclass Item(BaseModel):\n name: str\n price: float\n\napp = FastAPI()\n\n@app.post(\"\/items\/\")\nasync def create_item(item: Item):\n return item<\/pre>\n\n\n\nFlask:<\/p>\n\n\n\n
from flask import Flask, request, jsonify\n\napp = Flask(__name__)\n\n@app.route('\/items\/', methods=['POST'])\ndef create_item():\n data = request.get_json()\n name = data['name']\n price = data['price']\n item = {'name': name, 'price': price}\n return jsonify(item), 201<\/pre>\n\n\n\nFastAPI\u3067\u306f\u3001Pydantic\u3092\u4f7f\u3063\u3066\u30a2\u30a4\u30c6\u30e0\u306e\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\u3057\u3001\u81ea\u52d5\u7684\u306b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u4e00\u65b9\u3001Flask\u3067\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u624b\u52d5\u3067\u53d6\u5f97\u3057\u3001\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u7528\u9014\u306b\u5408\u308f\u305b\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u9078\u3073\u65b9<\/h3>\n\n\n\n
\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u898f\u6a21\u3084\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3001\u9069\u5207\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u9078\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\n- \u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3001Django\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u305f\u3044\u5834\u5408\u306f\u3001Django RESTframework\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n
- \u30b7\u30f3\u30d7\u30eb\u3055\u3092\u91cd\u8996\u3057\u3001\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u81ea\u5206\u3067\u5b9f\u88c5\u3057\u305f\u3044\u5834\u5408\u306f\u3001Flask\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n
- \u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u578b\u30d2\u30f3\u30c8\u30d9\u30fc\u30b9\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001FastAPI\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n
- \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3084\u975e\u540c\u671f\u51e6\u7406\u3092\u6d3b\u7528\u3057\u305f\u3044\u5834\u5408\u3082\u3001FastAPI\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n
\u4ee5\u4e0a\u3001FastAPI\u3068\u4ed6\u306ePython API\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306e\u6bd4\u8f03\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002FastAPI\u306f\u3001\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u578b\u30d2\u30f3\u30c8\u30d9\u30fc\u30b9\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u7279\u5fb4\u3067\u3001\u975e\u540c\u671f\u51e6\u7406\u306b\u3082\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001Django RESTframework\u306f\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u3057\u3066\u304a\u308a\u3001Flask\u306f\u30b7\u30f3\u30d7\u30eb\u3055\u3092\u91cd\u8996\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3001\u9069\u5207\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n
\u307e\u3068\u3081\uff1aFastAPI\u3092\u4f7f\u3044\u3053\u306a\u3057\u3066Python\u3067\u306e\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u3088\u3046<\/h2>\n\n\n\n
FastAPI\u306f\u3001Python\u306e\u578b\u30d2\u30f3\u30c8\u3068Pydantic\u3092\u6d3b\u7528\u3057\u305f\u81ea\u52d5\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u3001\u975e\u540c\u671f\u51e6\u7406\u306e\u30b5\u30dd\u30fc\u30c8\u306a\u3069\u3001\u591a\u304f\u306e\u512a\u308c\u305f\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u30e2\u30c0\u30f3\u306aWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001FastAPI\u3092\u4f7f\u3044\u3053\u306a\u3059\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8\u3068\u3001\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u30d2\u30f3\u30c8\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n\n\n\n
\u975e\u540c\u671f\u51e6\u7406\u306e\u6d3b\u7528<\/h3>\n\n\n\n
FastAPI\u306f\u3001\u975e\u540c\u671f\u51e6\u7406\u3092\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u308b\u305f\u3081\u3001\u9ad8\u8ca0\u8377\u306a\u30bf\u30b9\u30af\u3067\u3082\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002async<\/code>\u3068await<\/code>\u3092\u4f7f\u3063\u3066\u3001\u975e\u540c\u671f\u95a2\u6570\u3092\u5b9a\u7fa9\u3057\u3001I\/O\u51e6\u7406\u306a\u3069\u3092\u4e26\u884c\u3057\u3066\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30bf\u30b9\u30af\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u3001BackgroundTasks<\/code>\u3092\u4f7f\u3046\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\nfrom fastapi import BackgroundTasks, FastAPI\n\napp = FastAPI()\n\ndef write_notification(email: str, message=\"\"):\n with open(\"log.txt\", mode=\"w\") as email_file:\n content = f\"notification for {email}: {message}\"\n email_file.write(content)\n\n@app.post(\"\/send-notification\/{email}\")\nasync def send_notification(email: str, background_tasks: BackgroundTasks):\n background_tasks.add_task(write_notification, email, message=\"some notification\")\n return {\"message\": \"Notification sent in the background\"}<\/pre>\n\n\n\nPydantic\u3092\u6d3b\u7528\u3057\u305f\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n
FastAPI\u3067\u306f\u3001Pydantic\u3092\u4f7f\u3063\u3066\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30c7\u30fc\u30bf\u3092\u81ea\u52d5\u7684\u306b\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002\u30e2\u30c7\u30eb\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u5165\u529b\u30c7\u30fc\u30bf\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u578b\u5909\u63db\u304c\u81ea\u52d5\u7684\u306b\u884c\u308f\u308c\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u307e\u305f\u3001Pydantic\u306e\u30e2\u30c7\u30eb\u306f\u3001API\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3082\u53cd\u6620\u3055\u308c\u308b\u305f\u3081\u3001API\u306e\u4f7f\u7528\u65b9\u6cd5\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u4f9d\u5b58\u95a2\u4fc2\u306e\u6ce8\u5165\uff08Dependency Injection\uff09\u306e\u6d3b\u7528<\/h3>\n\n\n\n
FastAPI\u3067\u306f\u3001\u4f9d\u5b58\u95a2\u4fc2\u306e\u6ce8\u5165\u3092\u4f7f\u3063\u3066\u3001\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u6027\u3068\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002Depends<\/code>\u3092\u4f7f\u3063\u3066\u3001\u95a2\u6570\u306e\u5f15\u6570\u306b\u4f9d\u5b58\u95a2\u4fc2\u3092\u6ce8\u5165\u3067\u304d\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u95a2\u9023\u306e\u51e6\u7406\u306a\u3069\u3092\u3001\u4f9d\u5b58\u95a2\u4fc2\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u3001\u5fc5\u8981\u306a\u95a2\u6570\u3067\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\nfrom fastapi import Depends, FastAPI\nfrom sqlalchemy.orm import Session\n\napp = FastAPI()\n\ndef get_db():\n db = SessionLocal()\n try:\n yield db\n finally:\n db.close()\n\n@app.get(\"\/users\/{user_id}\")\ndef read_user(user_id: int, db: Session = Depends(get_db)):\n return db.query(User).filter(User.id == user_id).first()<\/pre>\n\n\n\n\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u306e\u6d3b\u7528<\/h3>\n\n\n\n
FastAPI\u3067\u306f\u3001\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u3092\u4f7f\u3063\u3066\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u51e6\u7406\u306b\u5171\u901a\u306e\u51e6\u7406\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002\u8a8d\u8a3c\u3084\u8a8d\u53ef\u3001\u30ec\u30fc\u30c8\u5236\u9650\u3001CORS\u306e\u51e6\u7406\u306a\u3069\u3092\u3001\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u3068\u3057\u3066\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002Starlette\u306e\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u3068\u4e92\u63db\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u65e2\u5b58\u306e\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
from fastapi import FastAPI\nfrom starlette.middleware.cors import CORSMiddleware\n\napp = FastAPI()\n\napp.add_middleware(\n CORSMiddleware,\n allow_origins=[\"*\"],\n allow_credentials=True,\n allow_methods=[\"*\"],\n allow_headers=[\"*\"],\n)<\/pre>\n\n\n\n\u30c6\u30b9\u30c8\u306e\u81ea\u52d5\u5316\u3068CI\/CD\u306e\u5c0e\u5165<\/h3>\n\n\n\n
FastAPI\u3067\u958b\u767a\u3057\u305fAPI\u306f\u3001pytest<\/code>\u3092\u4f7f\u3063\u3066\u81ea\u52d5\u30c6\u30b9\u30c8\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30c6\u30b9\u30c8\u306e\u81ea\u52d5\u5316\u306b\u3088\u308a\u3001\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\u3092\u9632\u304e\u3001\u54c1\u8cea\u306e\u9ad8\u3044API\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001GitHub Actions\u3084CircleCI\u306a\u3069\u306eCI\/CD\u30c4\u30fc\u30eb\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u81ea\u52d5\u30c6\u30b9\u30c8\u3068\u30c7\u30d7\u30ed\u30a4\u3092\u884c\u3044\u3001\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\nFastAPI\u306f\u3001\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u3001\u4fdd\u5b88\u6027\u306e\u9ad8\u3044API\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002FastAPI\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001Python\u3067\u306e\u958b\u767a\u3092\u3088\u308a\u52b9\u679c\u7684\u306b\u9032\u3081\u3089\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u4ee5\u4e0a\u3001FastAPI\u3092\u4f7f\u3044\u3053\u306a\u3059\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8\u3068\u3001\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u30d2\u30f3\u30c8\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002FastAPI\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u3001\u975e\u540c\u671f\u51e6\u7406\u3001\u30c7\u30fc\u30bf\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001\u4f9d\u5b58\u95a2\u4fc2\u306e\u6ce8\u5165\u3001\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u3001\u30c6\u30b9\u30c8\u306e\u81ea\u52d5\u5316\u306a\u3069\u3092\u9069\u5207\u306b\u884c\u3046\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044API\u958b\u767a\u304c\u53ef\u80fd\u3067\u3059\u3002\u305c\u3072\u3001FastAPI\u3092\u6d3b\u7528\u3057\u3066\u3001Python\u3067\u306e\u958b\u767a\u52b9\u7387\u3092\u9ad8\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
FastAPI\u306f\u3001Python\u306e\u4e16\u754c\u3067\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u308b\u9ad8\u6027\u80fd\u306aWeb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001FastAPI\u306e\u7279\u5fb4\u3084\u5229\u70b9\u3092\u89e3\u8aac\u3057\u3001\u4ed6\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306e\u6bd4\u8f03\u3092\u884c\u3044\u307e\u3059\u3002\u307e\u305f\u3001FastAPI\u3092\u4f7f\u3063\u305fAPI\u958b\u767a\u306e\u30d9\u30b9\u30c8 … <\/p>\n","protected":false},"author":1,"featured_media":671,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-670","post","type-post","status-publish","format-standard","has-post-thumbnail","category-python"],"_links":{"self":[{"href":"https:\/\/chocottopro.com\/index.php?rest_route=\/wp\/v2\/posts\/670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chocottopro.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chocottopro.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chocottopro.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chocottopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=670"}],"version-history":[{"count":1,"href":"https:\/\/chocottopro.com\/index.php?rest_route=\/wp\/v2\/posts\/670\/revisions"}],"predecessor-version":[{"id":672,"href":"https:\/\/chocottopro.com\/index.php?rest_route=\/wp\/v2\/posts\/670\/revisions\/672"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chocottopro.com\/index.php?rest_route=\/wp\/v2\/media\/671"}],"wp:attachment":[{"href":"https:\/\/chocottopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chocottopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chocottopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}