\n1. \uc11c\ub860<\/h2>\n
\n FastAPI\ub294 Python\uc73c\ub85c \uc791\uc131\ub41c \ucd5c\uc2e0 \uc6f9 \ud504\ub808\uc784\uc6cc\ud06c\ub85c, \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc9c0\uc6d0\ud558\uc5ec \ub192\uc740 \uc131\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 FastAPI\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubc31\uc5d4\ub4dc \uc11c\ubc84\ub97c \uac1c\ubc1c\ud558\uace0, \ube44\ub3d9\uae30 \ud568\uc218 \ubc0f \ucf54\ub8e8\ud2f4\uc744 \ud65c\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 FastAPI\uc758 \uae30\ubcf8 \uac1c\ub150\ubfd0 \uc544\ub2c8\ub77c \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uc6d0\ub9ac\uc640 \uc7a5\uc810, \uadf8\ub9ac\uace0 \uc774\ub97c \ud65c\uc6a9\ud55c \uc2e4\uc81c \uc608\uc81c \ucf54\ub4dc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n2. FastAPI \uc18c\uac1c<\/h2>\n
\n FastAPI\ub294 Python\uc758 \ube44\ub3d9\uae30 \uae30\ub2a5\uc744 \ucd5c\ub300\ud55c \ud65c\uc6a9\ud558\uba74\uc11c\ub3c4 \uc27d\uace0 \ube60\ub974\uac8c API\ub97c \uad6c\ucd95\ud560 \uc218 \uc788\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n
\n- \ube44\ub3d9\uae30 \uc9c0\uc6d0: asyncio \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c \uc0ac\uc6a9\ud558\uc5ec \ube44\ub3d9\uae30\ub85c \uc791\ub3d9<\/li>\n
- \uc790\ub3d9\ud654\ub41c \ubb38\uc11c\ud654: OpenAPI \uc2a4\ud399\uc5d0 \ub530\ub77c API \ubb38\uc11c\ub97c \uc790\ub3d9\uc73c\ub85c \uc0dd\uc131<\/li>\n
- \uc720\ud6a8\uc131 \uac80\uc0ac: Pydantic\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130 \uc720\ud6a8\uc131 \uac80\uc0ac \ubc0f \uc9c1\ub82c\ud654\ub97c \uc81c\uacf5<\/li>\n
- \uc131\ub2a5: \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \ud1b5\ud574 \ub192\uc740 \uc131\ub2a5\uc744 \uc790\ub791<\/li>\n<\/ul>\n<\/section>\n\n
3. \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d \uac1c\ub150<\/h2>\n
\n \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc740 \uc804\ud1b5\uc801\uc778 \ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uacfc \ub2ec\ub9ac \uc5ec\ub7ec \uc791\uc5c5\uc744 \ub3d9\uc2dc\uc5d0 \uc9c4\ud589\ud560 \uc218 \uc788\ub294 \uad6c\uc870\uc785\ub2c8\ub2e4. \uc774\ub294 \ub124\ud2b8\uc6cc\ud0b9 \ubc0f I\/O \uc791\uc5c5\uacfc \uac19\uc774 \uc9c0\uc5f0\uc774 \uc0dd\uae30\ub294 \uc791\uc5c5\uc5d0\uc11c \uc18d\ub3c4 \ud5a5\uc0c1\uc744 \uac00\uc838\uc635\ub2c8\ub2e4. \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uc8fc\uc694 \uac1c\ub150\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.\n <\/p>\n
\n- \n\ucf54\ub8e8\ud2f4(Coroutine)<\/strong>: Python\uc758 async\/await \uad6c\ubb38\uc744 \uc0ac\uc6a9\ud558\uc5ec \ube44\ub3d9\uae30 \ud568\uc218\ub97c \uc815\uc758\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucf54\ub8e8\ud2f4\uc740 \ub2e4\ub978 \ucf54\ub8e8\ud2f4\uc5d0 \uc758\ud574 \uc911\ub2e8\ub418\uace0, \ub2e4\uc2dc \uc7ac\uac1c\ub420 \uc218 \uc788\ub294 \ud568\uc218\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.\n <\/li>\n
- \n\uc774\ubca4\ud2b8 \ub8e8\ud504(Event Loop)<\/strong>: \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \ud575\uc2ec\uc73c\ub85c, \uc5ec\ub7ec \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc2a4\ucf00\uc904\ub9c1\ud558\uace0 \uad00\ub9ac\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.\n <\/li>\n
- \nTask<\/strong>: \ucf54\ub8e8\ud2f4\uc744 \uc774\ubca4\ud2b8 \ub8e8\ud504\uc5d0\uc11c \uc2e4\ud589\ud558\uae30 \uc704\ud574 \uc0dd\uc131\ub418\ub294 \uac1d\uccb4\ub85c, \uc2e4\ud589\ud560 \ucf54\ub8e8\ud2f4\uc744 \uac10\uc2f8\uace0 \uc788\uc2b5\ub2c8\ub2e4.\n <\/li>\n<\/ul>\n<\/section>\n\n
4. FastAPI \uc124\uce58<\/h2>\n
\n FastAPI\ub97c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba3c\uc800 Python\uc744 \uc124\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. \uadf8 \ud6c4, FastAPI\uc640 \ud544\uc694\ud55c \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c \uc124\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec FastAPI\ub97c \uc124\uce58\ud569\ub2c8\ub2e4.\n <\/p>\n
\npip install fastapi uvicorn\n <\/code><\/pre>\n\nuvicorn<\/strong>\uc740 ASGI \uc11c\ubc84\ub85c FastAPI \uc571\uc744 \uc2e4\ud589\ud558\ub294 \ub370 \ud544\uc694\ud569\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n5. FastAPI\uc758 \uae30\ubcf8 \uc0ac\uc6a9\ubc95<\/h2>\n
\n FastAPI\uc758 \uae30\ubcf8 \uad6c\uc870\ub294 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \uc544\ub798\uc758 \ucf54\ub4dc \uc608\uc81c\ub294 \uae30\ubcf8\uc801\uc778 FastAPI \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc0dd\uc131\ud558\ub294 \uc608\uc785\ub2c8\ub2e4.\n <\/p>\n
\nfrom fastapi import FastAPI\n\napp = FastAPI()\n\n@app.get(\"\/\")\nasync def read_root():\n return {\"Hello\": \"World\"}\n <\/code><\/pre>\n\n \uc704\uc758 \uc608\uc81c\uc5d0\uc11c FastAPI<\/strong> \uc778\uc2a4\ud134\uc2a4\ub97c \uc0dd\uc131\ud558\uace0, GET \uc694\uccad\uc5d0 \ub300\ud55c \uae30\ubcf8 \uc751\ub2f5\uc744 \uc815\uc758\ud558\ub294 \ucf54\ub8e8\ud2f4\uc744 \uc791\uc131\ud588\uc2b5\ub2c8\ub2e4. \uc774\uc81c \uc11c\ubc84\ub97c \uc2e4\ud589\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n\nuvicorn main:app --reload\n <\/code><\/pre>\n\n \uae30\ubcf8\uc801\uc73c\ub85c \uc11c\ubc84\ub294 http:\/\/localhost:8000<\/strong>\uc5d0\uc11c \uc2e4\ud589\ub429\ub2c8\ub2e4. \uc6f9 \ube0c\ub77c\uc6b0\uc800\uc5d0\uc11c \ud574\ub2f9 URL\ub85c \uc811\uc18d\ud558\uba74 JSON \ud615\uc2dd\uc758 {“Hello”: “World”} \uc751\ub2f5\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n6. \ube44\ub3d9\uae30 \ud568\uc218 \ubc0f \ucf54\ub8e8\ud2f4<\/h2>\n
\n FastAPI\uc5d0\uc11c\ub294 \ube44\ub3d9\uae30 \ud568\uc218\uc640 \ucf54\ub8e8\ud2f4\uc744 \uc27d\uac8c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ube44\ub3d9\uae30 \ud568\uc218\uc758 \uba87 \uac00\uc9c0 \uc608\uc81c\uc785\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc5b4\ub5bb\uac8c \uad6c\ud604\ud560 \uc218 \uc788\ub294\uc9c0 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n
\nimport asyncio\n\nasync def fake_blocking_task():\n await asyncio.sleep(2) # 2\ucd08 \ub300\uae30\n return \"\uc774 \uc791\uc5c5\uc740 \ube44\ub3d9\uae30\uc801\uc73c\ub85c \uc2e4\ud589\ub429\ub2c8\ub2e4.\"\n\n@app.get(\"\/async-task\")\nasync def run_async_task():\n result = await fake_blocking_task()\n return {\"result\": result}\n <\/code><\/pre>\n\n \uc704 \ucf54\ub4dc\ub294 fake_blocking_task<\/strong> \ud568\uc218\ub97c \ube44\ub3d9\uae30\uc801\uc73c\ub85c \uc2e4\ud589\ud558\uba70, 2\ucd08 \ud6c4\uc5d0 \uc751\ub2f5\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \ub2e4\ub978 \uc694\uccad\uc744 \ucc98\ub9ac\ud558\ub294 \ub3d9\uc548 \uc774 \uc791\uc5c5\uc774 \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc9c4\ud589\ub429\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n7. \ube44\ub3d9\uae30 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc791\uc5c5<\/h2>\n
\n FastAPI\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640\uc758 \ube44\ub3d9\uae30 \ud1b5\uc2e0\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, SQLAlchemy\ub97c \uc0ac\uc6a9\ud574 \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 SQLAlchemy\ub97c \uc0ac\uc6a9\ud558\uc5ec \ube44\ub3d9\uae30\uc801\uc73c\ub85c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640 \uc0c1\ud638\uc791\uc6a9\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4.\n <\/p>\n
\nfrom sqlalchemy.ext.asyncio import create_async_engine, AsyncSession\nfrom sqlalchemy.orm import sessionmaker\n\nDATABASE_URL = \"sqlite+aiosqlite:\/\/\/.\/test.db\"\n\nengine = create_async_engine(DATABASE_URL, echo=True)\nasync_session = sessionmaker(\n bind=engine,\n expire_on_commit=False,\n class_=AsyncSession\n)\n\nasync def get_items():\n async with async_session() as session:\n result = await session.execute(select(Item))\n return result.scalars().all()\n <\/code><\/pre>\n\n \uc704\uc758 \uc608\uc81c\uc5d0\uc11c\ub294 SQLAlchemy\uc758 \ube44\ub3d9\uae30 \uc138\uc158\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc811\uadfc\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ube44\ub3d9\uae30\uc801\uc73c\ub85c SQL \ucffc\ub9ac\ub97c \uc2e4\ud589\ud558\uace0 \uacb0\uacfc\ub97c \ubc18\ud658\ud569\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n8. FastAPI\uc5d0\uc11c \uc885\uc18d\uc131 \uc8fc\uc785 \uc0ac\uc6a9\ud558\uae30<\/h2>\n
\n FastAPI\ub294 \uc885\uc18d\uc131 \uc8fc\uc785 \uc2dc\uc2a4\ud15c\uc744 \ud1b5\ud574 \ucf54\ub4dc\uc758 \uc7ac\uc0ac\uc6a9\uc131\uacfc \uad6c\uc870\uc801\uc778 \uc124\uacc4\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc138\uc158\uc744 \uc804\uc5ed \uc124\uc815\uc73c\ub85c \uc8fc\uc785\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n
\nfrom fastapi import Depends\n\nasync def get_db():\n async with async_session() as session:\n yield session\n\n@app.get(\"\/items\/\")\nasync def read_items(db: AsyncSession = Depends(get_db)):\n items = await get_items()\n return items\n <\/code><\/pre>\n\n \uc704 \ucf54\ub4dc\uc5d0\uc11c Depends<\/strong>\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc885\uc18d\uc131 \uc8fc\uc785\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4. \ud074\ub77c\uc774\uc5b8\ud2b8 \uc694\uccad\uc5d0 \ub300\ud574 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc138\uc158\uc774 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n9. \ud14c\uc2a4\ud2b8 \uc791\uc131\ud558\uae30<\/h2>\n
\n FastAPI\ub294 \ud14c\uc2a4\ud2b8 \uc791\uc131\ub3c4 \uac04\ub2e8\ud558\uac8c \ub9cc\ub4e4\uc5b4 \uc90d\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud14c\uc2a4\ud2b8 \ucf54\ub4dc\uc758 \uc608\uc785\ub2c8\ub2e4.\n <\/p>\n
\nfrom fastapi.testclient import TestClient\n\nclient = TestClient(app)\n\ndef test_read_root():\n response = client.get(\"\/\")\n assert response.status_code == 200\n assert response.json() == {\"Hello\": \"World\"}\n <\/code><\/pre>\n\n FastAPI\uc758 \ub0b4\uc7a5 TestClient\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc5d4\ub4dc\ud3ec\uc778\ud2b8\ub97c \ud14c\uc2a4\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n10. \uacb0\ub860<\/h2>\n
\n FastAPI\ub97c \uc0ac\uc6a9\ud55c \ube44\ub3d9\uae30 \ud568\uc218 \ubc0f \ucf54\ub8e8\ud2f4 \ud65c\uc6a9\uc740 \ud604\ub300\uc801\uc778 \uc6f9 \uac1c\ubc1c\uc5d0\uc11c \ud544\uc218\uc801\uc778 \uc791\uc5c5\uc785\ub2c8\ub2e4. \uc774\ub294 \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uace0, \ud655\uc7a5 \uac00\ub2a5\ud55c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\ub294 \ub370 \ud070 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\ub97c \ud1b5\ud574 FastAPI\uc758 \uae30\ubcf8 \uc0ac\uc6a9\ubc95\ubd80\ud130 \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uac1c\ub150, \uadf8\ub9ac\uace0 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640\uc758 \uc0c1\ud638\uc791\uc6a9\uae4c\uc9c0 \ud3ed\ub113\uc740 \ub0b4\uc6a9\uc744 \ub2e4\ub8e8\uc5c8\uc2b5\ub2c8\ub2e4.\n <\/p>\n
\n FastAPI\ub294 \uc9c0\uc18d\uc801\uc73c\ub85c \ubc1c\uc804\ud558\uace0 \uc788\uc73c\uba70, \uc55e\uc73c\ub85c\ub3c4 \ub9ce\uc740 \uae30\ub2a5\ub4e4\uc774 \ucd94\uac00\ub420 \uac83\uc785\ub2c8\ub2e4. \uc5ec\ub7ec\ubd84\ub3c4 FastAPI\ub97c \ud65c\uc6a9\ud558\uc5ec \ud6a8\uc728\uc801\uc774\uace0 \ube60\ub978 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud574\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.\n <\/p>\n<\/section>\n