app = FastAPI()


class BaseUser(BaseModel):
    username: str
    email: EmailStr
    full_name: Union[str, None] = None


class UserIn(BaseUser):
    password: str


@app.post("/user/")
async def create_user(user: UserIn) -> BaseUser:

from fastapi import FastAPI
from pydantic import BaseModel, EmailStr

app = FastAPI()


class UserIn(BaseModel):
    username: str
    password: str
    email: EmailStr
    full_name: str | None = None


# Don't do this in production!
@app.post("/user/")
async def create_user(user: UserIn) -> UserIn:

                            {"title": "Full Name", "type": "string"}
                        ),
                    },
                },
                "UserIn": {
                    "title": "UserIn",
                    "required": ["username", "password", "email"],
                    "type": "object",
                    "properties": {

from fastapi import FastAPI
from pydantic import BaseModel, EmailStr

app = FastAPI()


class UserIn(BaseModel):
    username: str
    password: str
    email: EmailStr
    full_name: Union[str, None] = None


# Don't do this in production!
@app.post("/user/")
async def create_user(user: UserIn) -> UserIn:

                            "items": {"$ref": "#/components/schemas/ValidationError"},
                        }
                    },
                },
                "UserIn": {
                    "title": "UserIn",
                    "required": ["username", "email", "password"],
                    "type": "object",
                    "properties": {

app = FastAPI()


class BaseUser(BaseModel):
    username: str
    email: EmailStr
    full_name: str | None = None


class UserIn(BaseUser):
    password: str


@app.post("/user/")
async def create_user(user: UserIn) -> BaseUser:

app = FastAPI()


class UserIn(BaseModel):
    username: str
    password: str
    email: EmailStr
    full_name: Union[str, None] = None


class UserOut(BaseModel):
    username: str
    email: EmailStr
    full_name: Union[str, None] = None


@app.post("/user/", response_model=UserOut)
async def create_user(user: UserIn) -> Any:

                            "items": {"$ref": "#/components/schemas/ValidationError"},
                        }
                    },
                },
                "UserIn": {
                    "title": "UserIn",
                    "required": ["username", "email", "password"],
                    "type": "object",
                    "properties": {

from pydantic import BaseModel, EmailStr

app = FastAPI()


class UserIn(BaseModel):
    username: str
    password: str
    email: EmailStr
    full_name: str | None = None


class UserOut(BaseModel):
    username: str
    email: EmailStr
    full_name: str | None = None


@app.post("/user/", response_model=UserOut)
async def create_user(user: UserIn) -> Any:

                            {"title": "Full Name", "type": "string"}
                        ),
                    },
                },
                "UserIn": {
                    "title": "UserIn",
                    "required": ["username", "password", "email"],
                    "type": "object",
                    "properties": {