\ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 FastAPI\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubc31\uc5d4\ub4dc \uc11c\ubc84\ub97c \uac1c\ubc1c\ud558\uace0, \ub3c4\ucee4\ub97c \uc774\uc6a9\ud558\uc5ec \uc774 \uc11c\ubc84\ub97c \ud328\ud0a4\uc9d5 \ubc0f \ubc30\ud3ec\ud558\uba70, \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \ud3ec\ud568\ud55c \uc804\uccb4\uc801\uc778 \ubc30\ud3ec \uacfc\uc815\uc5d0 \ub300\ud574 \uc0c1\uc138\ud788 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4. FastAPI\ub294 \ube60\ub974\uace0 \ud604\ub300\uc801\uc778 \uc6f9 \ud504\ub808\uc784\uc6cc\ud06c\ub85c, \ube44\ub3d9\uae30 API\ub97c \uc27d\uac8c \uac1c\ubc1c\ud560 \uc218 \uc788\ub3c4\ub85d \ub3d5\uc2b5\ub2c8\ub2e4. \uc774\uc640 \ub354\ubd88\uc5b4 \ub3c4\ucee4\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ucee8\ud14c\uc774\ub108\ud654\ud558\uc5ec \uc5b4\ub514\uc11c\ub4e0 \uc2e4\ud589\ud560 \uc218 \uc788\ub3c4\ub85d \ud574\uc8fc\ub294 \ub3c4\uad6c\uc785\ub2c8\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ubc30\ud3ec\uc5d0 \ub300\ud574 \ub17c\uc758\ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n
FastAPI\ub294 Python\uc73c\ub85c \uc791\uc131\ub41c \uc6f9 \ud504\ub808\uc784\uc6cc\ud06c\uc774\uba70, RESTful API\ub97c \uc791\uc131\ud558\ub294 \ub370 \uc720\uc6a9\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. FastAPI\uc758 \uc8fc\uc694 \ud2b9\uc9d5\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n
pip install fastapi uvicorn<\/code><\/pre>\n\uc704 \uba85\ub839\uc5b4\ub97c \ud1b5\ud574 FastAPI\uc640 Uvicorn(ASGI \uc11c\ubc84)\ub97c \uc124\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
2. FastAPI \uc11c\ubc84 \uac1c\ubc1c<\/h2>\n
\uc774\uc81c FastAPI\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud55c API \uc11c\ubc84\ub97c \ub9cc\ub4e4\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uad00\ub9ac\ud558\ub294 API\ub97c \uad6c\ucd95\ud55c\ub2e4\uace0 \uac00\uc815\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
2.1 \uae30\ubcf8 \uad6c\uc870<\/h3>\nfrom fastapi import FastAPI\nfrom pydantic import BaseModel\n\napp = FastAPI()\n\n# Pydantic \ubaa8\ub378 \uc815\uc758\nclass User(BaseModel):\n id: int\n name: str\n age: int\n\n# In-memory \ub370\uc774\ud130 \uc800\uc7a5\uc18c\nusers = []\n\n@app.post(\"\/users\/\")\ndef create_user(user: User):\n users.append(user)\n return user\n\n@app.get(\"\/users\/{user_id}\")\ndef read_user(user_id: int):\n return users[user_id]\n\n@app.get(\"\/users\/\")\ndef list_users():\n return users\n<\/code><\/pre>\n\uc704 \ucf54\ub4dc\ub294 \uac04\ub2e8\ud55c \uc0ac\uc6a9\uc790 API\ub97c \uad6c\ud604\ud55c \uc608\uc81c\uc785\ub2c8\ub2e4. POST \uc694\uccad\uc744 \ud1b5\ud574 \uc0ac\uc6a9\uc790\ub97c \ucd94\uac00\ud558\uace0, GET \uc694\uccad\uc744 \ud1b5\ud574 \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \uc870\ud68c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
2.2 \uc2e4\ud589<\/h3>\nuvicorn main:app --reload<\/code><\/pre>\n\uc11c\ubc84\ub97c \uc2e4\ud589\ud558\ub824\uba74 \uc704 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uc2dc\uba74 \ub429\ub2c8\ub2e4. \ube0c\ub77c\uc6b0\uc800\uc5d0\uc11c http:\/\/127.0.0.1:8000\/docs<\/code>\uc5d0 \uc811\uc18d\ud558\uba74 \uc790\ub3d9 \uc0dd\uc131\ub41c API \ubb38\uc11c\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3. \ub3c4\ucee4\ub97c \uc774\uc6a9\ud55c \ubc30\ud3ec<\/h2>\n
\uc774\uc81c FastAPI \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub3c4\ucee4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud328\ud0a4\uc9d5\ud558\uace0 \ubc30\ud3ec\ud558\ub294 \uacfc\uc815\uc744 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
3.1 Dockerfile \uc791\uc131<\/h3>\n
\ud504\ub85c\uc81d\ud2b8 \ub8e8\ud2b8 \ub514\ub809\ud1a0\ub9ac\uc5d0 Dockerfile<\/code>\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\nFROM python:3.9\n\nWORKDIR \/app\n\nCOPY requirements.txt .\nRUN pip install -r requirements.txt\n\nCOPY . .\n\nCMD [\"uvicorn\", \"main:app\", \"--host\", \"0.0.0.0\", \"--port\", \"80\"]\n<\/code><\/pre>\nDockerfile\uc758 \uad6c\uc131\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n
\nFROM<\/code><\/li>\n : Python \uc774\ubbf8\uc9c0\ub97c \uae30\ubc18\uc73c\ub85c \ud569\ub2c8\ub2e4.<\/p>\n
WORKDIR<\/code><\/li>\n : \uc791\uc5c5 \ub514\ub809\ud1a0\ub9ac\ub97c \uc124\uc815\ud569\ub2c8\ub2e4.<\/p>\n
COPY<\/code><\/li>\n : \ud604\uc7ac \ub514\ub809\ud1a0\ub9ac\uc758 \ud30c\uc77c\uc744 \ub3c4\ucee4 \uc774\ubbf8\uc9c0\ub85c \ubcf5\uc0ac\ud569\ub2c8\ub2e4.<\/p>\n
RUN<\/code><\/li>\n : \ud544\uc694\ud55c \ud328\ud0a4\uc9c0\ub97c \uc124\uce58\ud569\ub2c8\ub2e4.<\/p>\n
CMD<\/code><\/li>\n : \ucee8\ud14c\uc774\ub108\uac00 \uc2dc\uc791\ub420 \ub54c \uc2e4\ud589\ub420 \uba85\ub839\uc5b4\ub97c \uc9c0\uc815\ud569\ub2c8\ub2e4.\n<\/ul>\n
3.2 \ub3c4\ucee4 \uc774\ubbf8\uc9c0 \ube4c\ub4dc<\/h3>\ndocker build -t fastapi-app .<\/code><\/pre>\n\uc704 \uba85\ub839\uc5b4\ub97c \ud1b5\ud574 \ub3c4\ucee4 \uc774\ubbf8\uc9c0\ub97c \ube4c\ub4dc\ud569\ub2c8\ub2e4.<\/p>\n
3.3 \ub3c4\ucee4 \ucee8\ud14c\uc774\ub108 \uc2e4\ud589<\/h3>\ndocker run -d -p 80:80 fastapi-app<\/code><\/pre>\n\ucee8\ud14c\uc774\ub108\ub97c \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc2e4\ud589\ud569\ub2c8\ub2e4. \uc774 \ud6c4 http:\/\/localhost<\/code>\uc5d0\uc11c API\uc5d0 \uc811\uadfc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ubc30\ud3ec<\/h2>\n
FastAPI\uc640 \ub3c4\ucee4\ub97c \uc0ac\uc6a9\ud55c \uae30\ubcf8 API \uc11c\ubc84 \uad6c\ucd95\uc774 \uc644\ub8cc\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\uc81c \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \ucd94\uac00\ud558\uc5ec \ub370\uc774\ud130\ub97c \uc9c0\uc18d\uc801\uc73c\ub85c \uc800\uc7a5\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uad6c\ud604\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 SQLite\ub97c \uc0ac\uc6a9\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
4.1 SQLAlchemy \ubc0f \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uc815<\/h3>\nfrom sqlalchemy import create_engine, Column, Integer, String\nfrom sqlalchemy.ext.declarative import declarative_base\nfrom sqlalchemy.orm import sessionmaker\n\nDATABASE_URL = \"sqlite:\/\/\/.\/test.db\"\nengine = create_engine(DATABASE_URL)\nSessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)\n\nBase = declarative_base()\n\nclass UserModel(Base):\n __tablename__ = \"users\"\n\n id = Column(Integer, primary_key=True, index=True)\n name = Column(String, index=True)\n age = Column(Integer)\n\nBase.metadata.create_all(bind=engine)\n<\/code><\/pre>\n\uc704 \ucf54\ub4dc\ub294 SQLAlchemy\ub97c \uc0ac\uc6a9\ud558\uc5ec SQLite \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \uc124\uc815\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. UserModel<\/code> \ud074\ub798\uc2a4\uac00 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc0ac\uc6a9\uc790 \ud14c\uc774\ube14\uc744 \uc815\uc758\ud569\ub2c8\ub2e4.<\/p>\n4.2 FastAPI\uc5d0 \ud1b5\ud569<\/h3>\nfrom fastapi import Depends\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=User)\ndef create_user(user: User, db: Session = Depends(get_db)):\n db_user = UserModel(**user.dict())\n db.add(db_user)\n db.commit()\n db.refresh(db_user)\n return db_user\n\n@app.get(\"\/users\/{user_id}\", response_model=User)\ndef read_user(user_id: int, db: Session = Depends(get_db)):\n return db.query(UserModel).filter(UserModel.id == user_id).first()\n\n@app.get(\"\/users\/\", response_model=List[User])\ndef list_users(db: Session = Depends(get_db)):\n return db.query(UserModel).all()\n<\/code><\/pre>\n\uc704 \ucf54\ub4dc\ub294 FastAPI\uc5d0\uc11c SQLAlchemy\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640\uc758 \uc0c1\ud638\uc791\uc6a9\uc744 \ucd94\uac00\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc774\uc81c \uc0ac\uc6a9\uc790\ub97c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \ucd94\uac00\ud558\uace0 \uc870\ud68c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
5. \ub3c4\ucee4\uc5d0 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ubc30\ud3ec<\/h2>\n
\ub3c4\ucee4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640 \ud568\uaed8 FastAPI \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ubc30\ud3ec\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 PostgreSQL \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n
5.1 Docker Compose \uc124\uc815<\/h3>\n
\ub2e4\uc74c\uc73c\ub85c docker-compose.yml<\/code> \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uc5ec FastAPI\uc640 PostgreSQL\uc744 \ud568\uaed8 \uc2e4\ud589 \ud560 \uc218 \uc788\ub3c4\ub85d \uc124\uc815\ud569\ub2c8\ub2e4.<\/p>\nversion: '3.8'\nservices:\n web:\n build: .\n ports:\n - \"80:80\"\n depends_on:\n - db\n environment:\n - DATABASE_URL=postgresql:\/\/user:password@db\/dbname\n\n db:\n image: postgres:latest\n environment:\n POSTGRES_DB: dbname\n POSTGRES_USER: user\n POSTGRES_PASSWORD: password\n ports:\n - \"5432:5432\"\n<\/code><\/pre>\n\uc704 \uad6c\uc131\uc5d0\uc11c\ub294 FastAPI \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 PostgreSQL \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc758\uc874\ud558\uace0 \uc788\uc74c\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ucee8\ud14c\uc774\ub108\uac00 \uc2e4\ud589\ub418\uba74 FastAPI \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uc774\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
5.2 \ucee8\ud14c\uc774\ub108 \uc2e4\ud589<\/h3>\ndocker-compose up --build<\/code><\/pre>\n\uc704 \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubaa8\ub4e0 \uc11c\ube44\uc2a4\ub97c \ud55c \ubc88\uc5d0 \uc2e4\ud589\ud569\ub2c8\ub2e4. FastAPI\ub294 PostgreSQL\uacfc \uc5f0\uacb0\ub418\uace0, API\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uacb0\ub860<\/h2>\n
\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 FastAPI\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud55c \ubc31\uc5d4\ub4dc API\ub97c \uac1c\ubc1c\ud558\uace0, \ub3c4\ucee4\ub97c \ud1b5\ud574 \uc774 API\ub97c \ud328\ud0a4\uc9d5 \ubc0f \ubc30\ud3ec\ud558\uba70, \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \uc124\uc815\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc124\uba85\ud558\uc600\uc2b5\ub2c8\ub2e4. FastAPI\uc640 \ub3c4\ucee4\ub97c \ud65c\uc6a9\ud558\uba74 \ud6a8\uc728\uc801\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\uace0 \ubc30\ud3ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ud604\ub300\uc801\uc778 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc190\uc27d\uac8c \uad6c\ucd95\ud560 \uc218 \uc788\ub294 \uae30\ucd08\ub97c \ub2e4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"