{"id":107,"date":"2026-03-08T05:24:43","date_gmt":"2026-03-08T05:24:43","guid":{"rendered":"https:\/\/blog.rebalai.com\/ja\/2026\/03\/08\/fastapi-vs-django-vs-flask-2026python\/"},"modified":"2026-03-09T04:37:00","modified_gmt":"2026-03-09T04:37:00","slug":"fastapi-vs-django-vs-flask-2026python","status":"publish","type":"post","link":"https:\/\/blog.rebalai.com\/ja\/2026\/03\/08\/fastapi-vs-django-vs-flask-2026python\/","title":{"rendered":"FastAPI\u3001Django\u3001Flask\u2014\u20142026\u5e74\u3001\u5b9f\u969b\u306b\u4f7f\u3044\u8fbc\u3093\u3067\u5206\u304b\u3063\u305f\u3053\u3068"},"content":{"rendered":"<p>\u53bb\u5e74\u306e10\u6708\u3001\u793e\u5185\u306eML\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306bAPI\u30ec\u30a4\u30e4\u30fc\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u306a\u3063\u305f\u3002\u30c1\u30fc\u30e0\u306f\u81ea\u5206\u542b\u3081\u30664\u4eba\u3001\u5168\u54e1\u304c\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u5bc4\u308a\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3001Python\u306b\u306f\u6163\u308c\u3066\u3044\u308b\u3002\u300c\u3069\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u4f7f\u3046\uff1f\u300d\u3068\u3044\u3046\u8a71\u306b\u306a\u3063\u3066\u300130\u5206\u306e\u8b70\u8ad6\u304c2\u6642\u9593\u306b\u5ef6\u3073\u305f\u3002FastAPI\u3092\u63a8\u3059\u58f0\u3001Django\u306e\u5b89\u5b9a\u6027\u3092\u6319\u3052\u308b\u58f0\u3001\u300cFlask\u3067\u5341\u5206\u3058\u3083\u306a\u3044\uff1f\u300d\u3068\u3044\u3046\u58f0\u3002<\/p>\n<p>\u7d50\u5c40\u3001\u81ea\u5206\u304c\u624b\u3092\u6319\u3052\u3066\u300c2\u9031\u9593\u3067\u5168\u90e8\u8a66\u3059\u300d\u3053\u3068\u306b\u306a\u3063\u305f\u3002\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u30ec\u30d9\u30eb\u3058\u3083\u306a\u304f\u3001\u8a8d\u8a3c\u3001\u975e\u540c\u671f\u51e6\u7406\u3001SQLAlchemy\u3068\u306e\u9023\u643a\u3001OpenAPI\u4ed5\u69d8\u306e\u81ea\u52d5\u751f\u6210\u2014\u2014\u5b9f\u969b\u306b\u4f7f\u3044\u305d\u3046\u306a\u6a5f\u80fd\u5168\u90e8\u8fbc\u307f\u3067\u3002<\/p>\n<p>\u305d\u306e\u7d4c\u9a13\u3068\u3001\u305d\u306e\u5f8c5\u30f6\u6708\u4f7f\u3044\u7d9a\u3051\u3066\u6c17\u3065\u3044\u305f\u3053\u3068\u3092\u66f8\u304f\u3002<\/p>\n<hr \/>\n<h2>\u300c\u901f\u3044\u300d\u3068\u3044\u3046\u306e\u306f\u4f55\u304c\u901f\u3044\u306e\u304b\u2014\u2014FastAPI\u306e\u5b9f\u614b<\/h2>\n<p>FastAPI\u3092\u6700\u521d\u306b\u89e6\u3063\u305f\u306e\u306f2023\u5e74\u3060\u3063\u305f\u3051\u3069\u3001\u6b63\u76f4\u305d\u306e\u3068\u304d\u306f\u30d4\u30f3\u3068\u6765\u306a\u304b\u3063\u305f\u3002\u578b\u30d2\u30f3\u30c8\u304c\u591a\u304f\u3066\u300cPython\u3089\u3057\u304f\u306a\u3044\u300d\u3068\u601d\u3063\u3066\u3044\u305f\u3002\u4eca\u56de\u6539\u3081\u3066\u5411\u304d\u5408\u3063\u3066\u3001\u8003\u3048\u304c\u5909\u308f\u3063\u305f\u3002<\/p>\n<p>\u901f\u3055\u306b\u306f2\u7a2e\u985e\u3042\u308b\u3002\u5b9f\u884c\u901f\u5ea6\u3068\u3001\u958b\u767a\u901f\u5ea6\u3060\u3002<\/p>\n<p>\u5b9f\u884c\u901f\u5ea6\u306b\u3064\u3044\u3066\u306f\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u304c\u8272\u3005\u51fa\u56de\u3063\u3066\u3044\u308b\u306e\u3067\u8a73\u3057\u304f\u306f\u8a00\u308f\u306a\u3044\u3051\u3069\u3001uvicorn + FastAPI\u306e\u7d44\u307f\u5408\u308f\u305b\u306f\u4f53\u611f\u3067\u3082\u308f\u304b\u308b\u304f\u3089\u3044\u901f\u3044\u3002\u540c\u3058\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092Flask\u3067\u4f5c\u3063\u305f\u3068\u304d\u3068\u6bd4\u3079\u3066\u3001\u5358\u7d14\u306aGET\u30673\u301c4\u500d\u306e\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u51fa\u305f\uff08\u3046\u3061\u306e\u74b0\u5883\u306e\u8a71\u306a\u306e\u3067\u3001\u3042\u306a\u305f\u306e\u74b0\u5883\u3067\u540c\u3058\u306b\u306a\u308b\u304b\u306f\u4fdd\u8a3c\u3067\u304d\u306a\u3044\u3051\u3069\uff09\u3002<\/p>\n<p>\u958b\u767a\u901f\u5ea6\u306e\u65b9\u304c\u500b\u4eba\u7684\u306b\u306f\u9a5a\u304d\u3060\u3063\u305f\u3002\u578b\u30d2\u30f3\u30c8\u3092\u66f8\u3051\u3070\u81ea\u52d5\u3067\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u304c\u751f\u6210\u3055\u308c\u308b\u3001\u3068\u3044\u3046\u306e\u306f\u982d\u3067\u306f\u7406\u89e3\u3057\u3066\u3044\u305f\u3051\u3069\u3001\u5b9f\u969b\u306b\u3084\u3063\u3066\u307f\u308b\u3068\u4f53\u9a13\u304c\u307e\u308b\u3067\u9055\u3046\u3002<\/p>\n<pre><code class=\"language-python\">from fastapi import FastAPI, HTTPException, Depends\nfrom pydantic import BaseModel\nfrom typing import Optional\nimport asyncio\n\napp = FastAPI()\n\nclass InferenceRequest(BaseModel):\n    prompt: str\n    max_tokens: int = 512\n    temperature: float = 0.7\n    # Optional fields \u2014 \u30d5\u30ed\u30f3\u30c8\u304c\u307e\u3060\u5b9f\u88c5\u3057\u3066\u306a\u3044\u6a5f\u80fd\u306f None \u3067\u3044\u3044\n    stream: Optional[bool] = False\n\nclass InferenceResponse(BaseModel):\n    result: str\n    model_version: str\n    latency_ms: float\n\n# \u4f9d\u5b58\u6027\u6ce8\u5165\u3067API\u30ad\u30fc\u691c\u8a3c\u3092\u5171\u901a\u5316\nasync def verify_api_key(x_api_key: str = Header(...)):\n    if x_api_key not in VALID_KEYS:\n        raise HTTPException(status_code=403, detail=&quot;Invalid API key&quot;)\n    return x_api_key\n\n@app.post(&quot;\/v1\/infer&quot;, response_model=InferenceResponse)\nasync def run_inference(\n    req: InferenceRequest,\n    api_key: str = Depends(verify_api_key)\n):\n    start = asyncio.get_event_loop().time()\n    result = await model.generate(req.prompt, req.max_tokens, req.temperature)\n    latency = (asyncio.get_event_loop().time() - start) * 1000\n\n    return InferenceResponse(\n        result=result,\n        model_version=&quot;v2.1.3&quot;,\n        latency_ms=round(latency, 2)\n    )\n<\/code><\/pre>\n<p>\u3053\u308c\u3067 <code>\/docs<\/code> \u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u81ea\u52d5\u3067Swagger UI\u304c\u51fa\u308b\u3002\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u30c1\u30fc\u30e0\u30e1\u30f3\u30d0\u30fc\u306b\u300c\u3053\u3053\u898b\u3066\u300d\u3068\u8a00\u3048\u3070\u3001API\u306e\u4ed5\u69d8\u3092\u5225\u9014\u66f8\u304b\u306a\u304f\u3066\u3044\u3044\u3002\u3046\u3061\u306e\u30c1\u30fc\u30e0\u3067\u3053\u308c\u304c\u5730\u5473\u306b\u4e00\u756a\u52a9\u304b\u3063\u305f\u70b9\u3060\u3063\u305f\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001FastAPI\u3067\u8a70\u307e\u3063\u305f\u90e8\u5206\u3082\u6b63\u76f4\u306b\u66f8\u3044\u3066\u304a\u304f\u3002\u975e\u540c\u671f\u306e\u6271\u3044\u304c\u601d\u3063\u305f\u3088\u308a\u96e3\u3057\u3044\u3002<code>async def<\/code>\u3067\u66f8\u3044\u305f\u3051\u3069\u5185\u90e8\u3067\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u547c\u3093\u3067\u3044\u3066\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5168\u7136\u51fa\u306a\u3044\u3068\u3044\u3046\u72b6\u6cc1\u306b\u6700\u521d\u30cf\u30de\u3063\u305f\u3002SQLAlchemy 2.0\u306e\u975e\u540c\u671f\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306f\u3001\u8a2d\u5b9a\u3092\u9593\u9055\u3048\u308b\u3068\u9759\u304b\u306b\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3059\u308b\u3002\u91d1\u66dc\u306e\u5348\u5f8c\u306b<a href=\"https:\/\/m.do.co\/c\/06956e5e2802\" title=\"DigitalOcean\u3067\u30c7\u30d7\u30ed\u30a4\" rel=\"nofollow sponsored\" target=\"_blank\">\u30c7\u30d7\u30ed\u30a4<\/a>\u3057\u3066\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u898b\u3066\u3044\u305f\u3089\u3001\u3058\u308f\u3058\u308f\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u304c\u4e0a\u304c\u3063\u3066\u3044\u3063\u3066\u2014\u2014\u539f\u56e0\u7279\u5b9a\u306b3\u6642\u9593\u304b\u304b\u3063\u305f\u3002<\/p>\n<p><strong>\u5b9f\u969b\u306e\u5224\u65ad\u57fa\u6e96<\/strong>\uff1aAI\u3084<a href=\"https:\/\/www.amazon.com\/s?k=machine+learning+book&#038;tag=synsun0f-20\" title=\"\u6a5f\u68b0\u5b66\u7fd2\u306e\u5165\u9580\u66f8 - Amazon\" rel=\"nofollow sponsored\" target=\"_blank\">\u6a5f\u68b0\u5b66\u7fd2<\/a>\u7cfb\u306eAPI\u3092\u4f5c\u308b\u306a\u3089\u3001FastAPI\u306f\u307b\u307c\u4e00\u629e\u3060\u3068\u601d\u3046\u3002\u975e\u540c\u671fI\/O\u3001\u578b\u5b89\u5168\u3001\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3001\u5168\u90e8\u304c\u565b\u307f\u5408\u3063\u3066\u3044\u308b\u3002\u305f\u3060\u3057\u3001\u30c1\u30fc\u30e0\u306bPython\u306e\u578b\u30d2\u30f3\u30c8\u3068\u975e\u540c\u671f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3078\u306e\u7406\u89e3\u304c\u3042\u308b\u524d\u63d0\u3067\u3002<\/p>\n<hr \/>\n<h2>Django\u306f\u300c\u3084\u308a\u3059\u304e\u300d\u3058\u3083\u306a\u304b\u3063\u305f\u2014\u2014\u305f\u3060\u3057\u6761\u4ef6\u304c\u3042\u308b<\/h2>\n<p>Django\u306b\u3064\u3044\u3066\u306f\u504f\u898b\u3092\u6301\u3063\u3066\u3044\u305f\u3002\u300c\u91cd\u3044\u300d\u300c\u8a2d\u5b9a\u304c\u591a\u3044\u300d\u300cAPI\u306b\u306f\u5411\u304b\u306a\u3044\u300d\u3002\u4eca\u56de\u306e\u691c\u8a3c\u3067\u3001\u81ea\u5206\u306e\u7406\u89e3\u304c\u53e4\u304b\u3063\u305f\u3068\u6c17\u3065\u3044\u305f\u3002<\/p>\n<p>Django REST Framework\uff08DRF\uff09\u3068\u7d44\u307f\u5408\u308f\u305b\u305fDjango\u3001\u305d\u3057\u3066Django Ninja\uff08FastAPI\u30b9\u30bf\u30a4\u30eb\u306e\u578b\u30d2\u30f3\u30c8\u30d9\u30fc\u30b9\u306e\u30d3\u30e5\u30fc\u304c\u4f7f\u3048\u308b\uff09\u2014\u2014\u3053\u306e2\u3064\u306f\u5225\u7269\u3068\u3057\u3066\u8003\u3048\u305f\u65b9\u304c\u3044\u3044\u3002<\/p>\n<p>Django Ninja\u306f\u6b63\u76f4\u3001\u4e88\u60f3\u5916\u3060\u3063\u305f\u3002FastAPI\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306bDjango\u306e\u30d0\u30c3\u30c6\u30ea\u30fc\u8fbc\u307f\u306e\u54f2\u5b66\u304c\u7d44\u307f\u5408\u308f\u3055\u3063\u3066\u3044\u308b\u3002\u8a8d\u8a3c\u3001\u7ba1\u7406\u753b\u9762\u3001\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u2014\u2014\u5168\u90e8\u3059\u3067\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3002\u3046\u3061\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306fML\u30e2\u30c7\u30eb\u306e\u7ba1\u7406UI\u304c\u5fc5\u8981\u3067\u3001Django Admin\u3092\u305d\u306e\u307e\u307e\u6d41\u7528\u3067\u304d\u305f\u306e\u306f\u5927\u304d\u304b\u3063\u305f\u3002\u30bc\u30ed\u304b\u3089\u4f5c\u3063\u3066\u305f\u3089\u78ba\u5b9f\u306b1\u9031\u9593\u4ee5\u4e0a\u304b\u304b\u3063\u3066\u3044\u305f\u4f5c\u696d\u304c\u3001\u8a2d\u5b9a\u6570\u6642\u9593\u3067\u7d42\u308f\u3063\u305f\u3002<\/p>\n<p>Django\u304c\u672c\u5f53\u306b\u5f37\u3044\u306e\u306f\u3001\u300c\u30e6\u30fc\u30b6\u30fc\u7ba1\u7406\u300d\u300c\u6a29\u9650\u30b7\u30b9\u30c6\u30e0\u300d\u300c\u7ba1\u7406\u753b\u9762\u300d\u304c\u5fc5\u8981\u306a\u3068\u304d\u3002SaaS\u306e\u7ba1\u7406\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3001\u793e\u5185\u30c4\u30fc\u30eb\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u7ba1\u7406\u7cfb\u2014\u2014\u3053\u3046\u3044\u3046\u3082\u306e\u3092\u4f5c\u308b\u306a\u3089\u3001Django\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u6a5f\u80fd\u306e\u5145\u5b9f\u5ea6\u306f\u4ed6\u306e\u8ffd\u968f\u3092\u8a31\u3055\u306a\u3044\u3002<\/p>\n<p>\u305f\u3060\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306f\u5b9f\u5728\u3059\u308b\u3002\u540c\u4e00\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3067\u6bd4\u8f03\u3059\u308b\u3068\u3001Django\u306fFastAPI\u3088\u308a3\u301c5\u500d\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u9ad8\u304b\u3063\u305f\u3002<a href=\"https:\/\/m.do.co\/c\/06956e5e2802\" title=\"DigitalOcean \u3067\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3092\u69cb\u7bc9\" rel=\"nofollow sponsored\" target=\"_blank\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9<\/a>\u306e\u672b\u7aef\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u3055\u3070\u304f\u3088\u3046\u306a\u7528\u9014\u306b\u306f\u5411\u304b\u306a\u3044\u3002\u3042\u3068\u3001ORM\u2014\u2014Django\u306eORM\u306f\u7fd2\u719f\u304c\u5fc5\u8981\u3067\u3001N+1\u554f\u984c\u3092\u8e0f\u3080\u306e\u306fDjango\u958b\u767a\u8005\u306e\u307b\u307c\u901a\u904e\u5100\u793c\u3060\u3068\u601d\u3046\uff08<code>select_related<\/code>\u3068<code>prefetch_related<\/code>\u3092\u899a\u3048\u308b\u524d\u306b\u4e00\u5ea6\u306f\u8e0f\u3080\uff09\u3002<\/p>\n<p>\u7d50\u5c40\u3001\u3053\u308c\u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u6027\u8cea\u6b21\u7b2c\u3060\u3002API\u3060\u3051\u3092\u63d0\u4f9b\u3059\u308b<a href=\"https:\/\/m.do.co\/c\/06956e5e2802\" title=\"DigitalOcean \u3067\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3092\u69cb\u7bc9\" rel=\"nofollow sponsored\" target=\"_blank\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9<\/a>\u3092\u4f5c\u308b\u306e\u304b\u3001\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u3092\u4f5c\u308b\u306e\u304b\u3067\u3001\u5224\u65ad\u304c180\u5ea6\u5909\u308f\u308b\u3002<\/p>\n<p>\u7ba1\u7406\u6a5f\u80fd\u4ed8\u304d\u306e\u30d7\u30ed\u30c0\u30af\u30c8\u3001\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u30fb\u6a29\u9650\u304c\u8907\u96d1\u306a\u30a2\u30d7\u30ea\u3001\u30c1\u30fc\u30e0\u306bDjango\u306b\u6163\u308c\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3044\u308b\u5834\u5408\u2014\u2014\u3053\u306e\u3069\u308c\u304b\u306b\u8a72\u5f53\u3059\u308c\u3070\u3001Django\u306e\u300c\u30d0\u30c3\u30c6\u30ea\u30fc\u8fbc\u307f\u300d\u306f\u672c\u7269\u306e\u4fa1\u5024\u3092\u6301\u3064\u3002\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u3067\u300c\u3068\u306b\u304b\u304f\u65e9\u304f\u52d5\u304f\u3082\u306e\u3092\u300d\u3068\u3044\u3046\u72b6\u6cc1\u3067\u3082\u3001\u610f\u5916\u3068Django\u306e\u65b9\u304c\u901f\u304f\u7acb\u3061\u4e0a\u304c\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n<hr \/>\n<h2>Flask\u306f\u30b7\u30f3\u30d7\u30eb\u3060\u304c\u30b7\u30f3\u30d7\u30eb\u3059\u304e\u308b\u306e\u306fFlask\u306e\u305b\u3044\u3067\u306f\u306a\u3044<\/h2>\n<p>Flask\u306b\u5bfe\u3059\u308b\u81ea\u5206\u306e\u8a55\u4fa1\u306f\u4e00\u756a\u8907\u96d1\u3060\u3002<\/p>\n<p>Flask\u306f\u60aa\u304f\u306a\u3044\u3002\u3080\u3057\u308d\u3001\u4f55\u5e74\u3082\u611b\u7528\u3057\u3066\u304d\u305f\u3002\u30de\u30a4\u30af\u30ed\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u3057\u3066\u3001\u300c\u6700\u5c0f\u9650\u306e\u69cb\u9020\u3067\u3001\u3042\u3068\u306f\u81ea\u5206\u3067\u6c7a\u3081\u308b\u300d\u3068\u3044\u3046\u601d\u60f3\u306f\u6b63\u3057\u3044\u3068\u601d\u3046\u3002\u554f\u984c\u306f\u3001\u300c\u81ea\u5206\u3067\u6c7a\u3081\u308b\u300d\u90e8\u5206\u304c\u7a4d\u307f\u91cd\u306a\u3063\u305f\u3068\u304d\u4f55\u304c\u8d77\u304d\u308b\u304b\u3001\u3060\u3002<\/p>\n<p>4\u4eba\u30c1\u30fc\u30e0\u3067\u5c0f\u3055\u3044\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092Flask\u3067\u59cb\u3081\u308b\u3068\u3001\u6700\u521d\u306f\u5feb\u9069\u3060\u3002\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3001\u57fa\u672c\u7684\u306aDB\u63a5\u7d9a\u2014\u2014\u5168\u90e8\u30b7\u30f3\u30d7\u30eb\u306b\u66f8\u3051\u308b\u3002\u3067\u3082\u534a\u5e74\u5f8c\u3001\u8a8d\u8a3c\u30e9\u30a4\u30d6\u30e9\u30ea\u3001\u30b7\u30ea\u30a2\u30e9\u30a4\u30b6\u3001\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001\u975e\u540c\u671f\u30bf\u30b9\u30af\u30ad\u30e5\u30fc\u2014\u2014\u5168\u90e8\u30d0\u30e9\u30d0\u30e9\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u3066\u3001\u300c\u306a\u305c\u3053\u306e\u8a2d\u8a08\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u300d\u304c\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3069\u3053\u308d\u304b\u30b3\u30fc\u30c9\u306b\u3082\u6b8b\u3063\u3066\u3044\u306a\u3044\u72b6\u6cc1\u306b\u306a\u308a\u3084\u3059\u3044\u3002<\/p>\n<pre><code class=\"language-python\"># Flask\u3067\u3088\u304f\u898b\u308b\u300c\u80b2\u3061\u3059\u304e\u305f\u300d\u30b3\u30fc\u30c9\nfrom flask import Flask, request, jsonify\nfrom marshmallow import Schema, fields, ValidationError  # \u5225\u30e9\u30a4\u30d6\u30e9\u30ea\nfrom flask_sqlalchemy import SQLAlchemy               # \u5225\u30e9\u30a4\u30d6\u30e9\u30ea\nfrom flask_jwt_extended import jwt_required           # \u5225\u30e9\u30a4\u30d6\u30e9\u30ea\nimport celery                                         # \u5225\u30e9\u30a4\u30d6\u30e9\u30ea\n\n# \u305d\u308c\u305e\u308c\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u4e92\u63db\u6027\u3092\u81ea\u5206\u3067\u7ba1\u7406\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\n# flask-jwt-extended 4.x \u306fFlask 2.x \u304c\u524d\u63d0\u3060\u304c\n# \u81ea\u5206\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306fFlask 1.x\u3067\u52d5\u3044\u3066\u3066...\u307f\u305f\u3044\u306a\u8a71\u304c\u8d77\u304d\u308b\n<\/code><\/pre>\n<p>\u3053\u308c\u306fFlask\u304c\u60aa\u3044\u3068\u3044\u3046\u3088\u308a\u3082\u3001Flask\u3092\u9078\u3076\u5224\u65ad\u3092\u3057\u305f\u4eba\u304c\u300c\u5f8c\u304b\u3089\u8907\u96d1\u306b\u306a\u308b\u3053\u3068\u3092\u904e\u5c0f\u8a55\u4fa1\u3059\u308b\u300d\u3068\u3044\u3046\u554f\u984c\u3060\u3068\u601d\u3046\u3002\u81ea\u5206\u3082\u542b\u3081\u3066\u3002<\/p>\n<p>2026\u5e74\u306e\u4eca\u3001Flask\u3092\u7a4d\u6975\u7684\u306b\u9078\u3076\u7406\u7531\u306f\u304b\u306a\u308a\u9650\u3089\u308c\u3066\u304d\u3066\u3044\u308b\u3002\u30b7\u30f3\u30d7\u30eb\u306aAPI\u304c\u6b32\u3057\u3044\u306a\u3089FastAPI\u306e\u65b9\u304c\u578b\u5b89\u5168\u3067\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u304c\u3042\u308b\u3002\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u306a\u3089Django\u306e\u65b9\u304c\u4e00\u8cab\u3057\u3066\u3044\u308b\u3002Flask\u304c\u8f1d\u304f\u306e\u306f\u3001\u672c\u5f53\u306b\u5c0f\u3055\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u7684\u306aAPI\u3068\u304b\u3001\u65e2\u5b58\u306eFlask\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3068\u304b\u3001\u5b66\u7fd2\u76ee\u7684\u3067\u300c\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u304c\u4f55\u3092\u3057\u3066\u3044\u308b\u304b\u7406\u89e3\u3057\u305f\u3044\u300d\u3068\u304d\u2014\u2014\u305d\u3046\u3044\u3046\u30cb\u30c3\u30c1\u306a\u30b7\u30fc\u30f3\u3060\u3002<\/p>\n<p>\u4e00\u500b\u3060\u3051\u3001Flask\u304c\u4eca\u3067\u3082\u81ea\u5206\u306e\u4e2d\u3067\u751f\u304d\u3066\u3044\u308b\u5834\u9762\u304c\u3042\u308b\u3002Jupyter Notebook\u304b\u3089\u30c7\u30fc\u30bf\u30b5\u30a4\u30a8\u30f3\u30c6\u30a3\u30b9\u30c8\u304c\u4f5c\u3063\u305f\u30e2\u30c7\u30eb\u3092\u30b5\u30c3\u3068\u516c\u958b\u3059\u308b\u3001\u307f\u305f\u3044\u306a\u300c\u4f7f\u3044\u6368\u3066\u306e\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7API\u300d\u3060\u3002\u8a2d\u5b9a\u30bc\u30ed\u3067HTTP\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u7acb\u3064\u3001\u3068\u3044\u3046\u5f37\u307f\u306f\u307e\u3060\u672c\u7269\u3060\u3002\u65b0\u898f\u306e\u672c\u756a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306a\u3089\u3001\u307e\u305aFastAPI\u304bDjango\u3092\u691c\u8a0e\u3057\u3066\u304b\u3089Flask\u3092\u5019\u88dc\u306b\u5165\u308c\u308b\u304b\u3069\u3046\u304b\u8003\u3048\u308b\u306e\u304c\u6b63\u76f4\u306a\u3068\u3053\u308d\u3060\u3068\u601d\u3046\u3002<\/p>\n<hr \/>\n<h2>AI\/ML\u30c4\u30fc\u30eb\u3092\u4f5c\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u3078\u2014\u2014\u3053\u308c\u304c\u4e00\u756a\u805e\u304d\u305f\u3044\u306f\u305a<\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3093\u3067\u3044\u308b\u4eba\u306e\u591a\u304f\u306f\u3001LLM\u306eAPI\u30e9\u30c3\u30d1\u30fc\u3092\u4f5c\u3063\u3066\u3044\u308b\u304b\u3001ML\u30e2\u30c7\u30eb\u306e\u30b5\u30fc\u30d3\u30f3\u30b0\u57fa\u76e4\u3092\u6574\u3048\u3066\u3044\u308b\u304b\u3001\u305d\u3046\u3044\u3046\u3068\u3053\u308d\u306b\u3044\u308b\u3068\u601d\u3046\u3002<\/p>\n<p>\u6b63\u76f4\u306b\u8a00\u3046\u3002AI\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306b\u306fFastAPI\u304c\u307b\u307c\u6700\u9069\u89e3\u3060\u3002\u7406\u7531\u306f\u3044\u304f\u3064\u304b\u3042\u308b\u3002<\/p>\n<p>\u975e\u540c\u671fI\/O\u304c\u5fc5\u8981\u3060\u304b\u3089\u3002OpenAI\u3084Anthropic\u306eAPI\u3092\u547c\u3076\u3068\u304d\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u6271\u3046\u3068\u304d\u3001\u8907\u6570\u306e\u30e2\u30c7\u30eb\u3092\u4e26\u5217\u3067\u547c\u3076\u3068\u304d\u2014\u2014\u5168\u90e8\u3001\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3060\u3068\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u51fa\u306a\u3044\u3002FastAPI\u306e<code>async\/await<\/code>\u306f\u3053\u306e\u7528\u9014\u306e\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u305f\u3088\u3046\u306a\u3082\u306e\u3060\u3002<\/p>\n<p>\u578b\u30d2\u30f3\u30c8\u304c\u30e2\u30c7\u30eb\u306e\u5165\u51fa\u529b\u5b9a\u7fa9\u3068\u76f8\u6027\u304c\u3044\u3044\u3002Pydantic\u306e\u30e2\u30c7\u30eb\u306f\u3001ML\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u300c\u3069\u3093\u306a\u30c7\u30fc\u30bf\u304c\u5165\u3063\u3066\u304d\u3066\u3001\u4f55\u304c\u8fd4\u308b\u3079\u304d\u304b\u300d\u3092\u8868\u73fe\u3059\u308b\u306e\u306b\u3061\u3087\u3046\u3069\u3044\u3044\u7c92\u5ea6\u3060\u3002\u3053\u3053\u3067\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc\u304c\u81ea\u52d5\u3067\u8fd4\u3063\u3066\u304f\u308b\u306e\u306f\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3068\u306e\u9023\u643a\u3067\u3082\u52a9\u304b\u308b\u3002<\/p>\n<p>Langchain\u3001LlamaIndex\u3001\u5404\u7a2ePython\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u2014\u2014\u5168\u90e8\u3001FastAPI\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u4e00\u756a\u4e8b\u4f8b\u304c\u591a\u3044\u3002StackOverflow\u3067\u8a70\u307e\u3063\u305f\u3068\u304d\u7b54\u3048\u304c\u898b\u3064\u304b\u308a\u3084\u3059\u3044\u3001\u3068\u3044\u3046\u306e\u306f\u5b9f\u52d9\u3067\u52b9\u3044\u3066\u304f\u308b\u3002<\/p>\n<p>\u4e00\u70b9\u3060\u3051\u6ce8\u610f\u3002FastAPI\u3067WebSocket\u3092\u4f7f\u3063\u305f\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3092\u5b9f\u88c5\u3057\u3088\u3046\u3068\u3057\u305f\u3068\u304d\u2014\u2014\u8a2d\u5b9a\u304c\u4e00\u898b\u30b7\u30f3\u30d7\u30eb\u306b\u898b\u3048\u3066\u3001\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u3057\u305f\u3068\u304d\uff08\u7279\u306bKubernetes\u4e0a\u3067\u8907\u6570\u30dd\u30c3\u30c9\u3092\u7acb\u3066\u305f\u3068\u304d\uff09\u306b\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u304c\u9762\u5012\u306b\u306a\u308b\u3002\u79c1\u306f\u3053\u3053\u3092100%\u89e3\u6c7a\u3057\u305f\u81ea\u4fe1\u304c\u306a\u304f\u3066\u3001Redis\u3067\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u304bCloud Run\u306eHTTP\/2\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3067\u9003\u3052\u3066\u3044\u308b\u3002\u3042\u306a\u305f\u306e\u74b0\u5883\u306b\u3088\u3063\u3066\u306f\u5225\u306e\u89e3\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<hr \/>\n<h2>\u6700\u7d42\u7684\u306b\u4f55\u3092\u9078\u3093\u3060\u304b<\/h2>\n<p>\u3046\u3061\u306eML\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3API\u3001FastAPI\u306b\u3057\u305f\u3002<\/p>\n<p>2\u9031\u9593\u306e\u691c\u8a3c\u3092\u7d4c\u3066\u3001\u30c1\u30fc\u30e0\u5168\u54e1\u304c\u540c\u3058\u65b9\u5411\u3092\u5411\u3044\u305f\u3002\u578b\u5b89\u5168\u3001\u81ea\u52d5\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3001\u975e\u540c\u671f\u51e6\u7406\u2014\u2014\u5168\u90e8\u3001\u3046\u3061\u306e\u7528\u9014\u306b\u30d5\u30a3\u30c3\u30c8\u3057\u3066\u3044\u305f\u3002\u534a\u5e74\u5f8c\u306e\u4eca\u3082\u5f8c\u6094\u3057\u3066\u3044\u306a\u3044\u3002<\/p>\n<p>\u500b\u4eba\u7684\u306a\u30eb\u30fc\u30eb\u3068\u3057\u3066\u307e\u3068\u3081\u308b\u3068\uff1a<\/p>\n<p>AI\u3068ML\u306eAPI\u3001<a href=\"https:\/\/m.do.co\/c\/06956e5e2802\" title=\"DigitalOcean \u3067\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3092\u69cb\u7bc9\" rel=\"nofollow sponsored\" target=\"_blank\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9<\/a>\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u91cd\u8981\u306a\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u2014\u2014<strong>FastAPI<\/strong>\u3002<\/p>\n<p>\u7ba1\u7406\u6a5f\u80fd\u4ed8\u304d\u30d7\u30ed\u30c0\u30af\u30c8\u3001\u8907\u96d1\u306a\u6a29\u9650\u30b7\u30b9\u30c6\u30e0\u3001\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u3001\u3042\u308b\u3044\u306f\u30c1\u30fc\u30e0\u306bDjango\u7d4c\u9a13\u8005\u304c\u3044\u308b\u2014\u2014<strong>Django\uff08+ Django Ninja\uff09<\/strong>\u3002<\/p>\n<p>\u65b0\u898f\u306e\u672c\u756a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u2014\u2014<strong>Flask\u306f\u5019\u88dc\u304b\u3089\u5916\u3059<\/strong>\u3002\u65e2\u5b58\u30b3\u30fc\u30c9\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3084\u4f7f\u3044\u6368\u3066\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u306f\u5225\u306e\u8a71\u3060\u3051\u3069\u3002<\/p>\n<p>Anyway\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u9078\u629e\u306f\u6700\u7d42\u7684\u306b\u306f\u300c\u30c1\u30fc\u30e0\u304c\u4f55\u306b\u6163\u308c\u3066\u3044\u308b\u304b\u300d\u3068\u300c\u30d7\u30ed\u30c0\u30af\u30c8\u304c\u4f55\u3092\u5fc5\u8981\u3068\u3057\u3066\u3044\u308b\u304b\u300d\u306e\u639b\u3051\u7b97\u3060\u3002\u305f\u3060\u3001\u6280\u8853\u7684\u306a\u65b9\u5411\u6027\u3068\u3057\u3066\u8a00\u3048\u3070\u30012026\u5e74\u306ePython\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306fFastAPI\u3092\u4e2d\u5fc3\u306b\u53ce\u675f\u3057\u3064\u3064\u3042\u308b\u2014\u2014\u5c11\u306a\u304f\u3068\u3082\u3001\u81ea\u5206\u306e\u89b3\u6e2c\u7bc4\u56f2\u3067\u306f\u305d\u3046\u898b\u3048\u308b\u3002<\/p>\n<p><!-- Reviewed: 2026-03-08 | Status: ready_to_publish | Changes: removed mid-Japanese English phrase \"Which brings me to\", fixed date inconsistency (2025\u21922026 in Flask section), broke parallel \u5b9f\u969b\u306e\u5224\u65ad\u57fa\u6e96 header pattern (Django section rewritten as inline prose, Flask section integrated into narrative), trimmed one redundant paragraph from Django section intro, fixed \"\u534a\u5e74\u5f8c\" timeline to \"5\u30f6\u6708\" for consistency with article date --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53bb\u5e74\u306e10\u6708\u3001\u793e\u5185\u306eML\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306bAPI\u30ec\u30a4\u30e4\u30fc\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u306a\u3063\u305f\u3002\u30c1\u30fc\u30e0\u306f\u81ea\u5206\u542b\u3081\u30664\u4eba\u3001\u5168\u54e1\u304c\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u5bc4\u308a\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3001Python\u306b\u306f\u6163\u308c\u3066\u3044\u308b\u3002\u300c\u3069\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u4f7f\u3046\uff1f\u300d\u3068\u3044\u3046\u8a71\u306b\u306a\u3063\u3066\u300130\u5206\u306e\u8b70\u8ad6\u304c2\u6642\u9593\u306b\u5ef6\u3073\u305f\u3002FastAPI\u3092\u63a8\u3059\u58f0\u3001Django\u306e\u5b89\u5b9a\u6027\u3092\u6319\u3052\u308b\u58f0\u3001\u300cFlask<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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