* Returns the username for the authenticating user.
     *
     * @return A <code>String</code> containing the user for this message.
     */
    public String getUser() {
        return user;
    }

    /**
     * Sets the user for this message.
     *
     * @param user The user.
     */
    public void setUser(final String user) {
        this.user = user;
    }

    /**

# Advanced User Guide { #advanced-user-guide }

## Additional Features { #additional-features }

The main [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} should be enough to give you a tour through all the main features of **FastAPI**.

In the next sections you will see other options, configurations, and additional features.

/// tip

The next sections are **not necessarily "advanced"**.

	var (
		buildNames    []string
		buildNamesMap = map[string]bool{}
		user, _       = schema.Parse(&tests.User{}, &sync.Map{}, db.NamingStrategy)
		stmt          = gorm.Statement{DB: db, Table: user.Table, Schema: user, Clauses: map[string]clause.Clause{}}
	)

	for _, c := range clauses {
		if _, ok := buildNamesMap[c.Name()]; !ok {

	"time"

	"gorm.io/gorm"
	"gorm.io/gorm/utils/tests"
)

type User struct {
	*gorm.Model
	Name      *string
	Age       *uint
	Birthday  *time.Time
	Account   *tests.Account
	Pets      []*tests.Pet
	Toys      []*tests.Toy `gorm:"polymorphic:Owner"`
	CompanyID *int
	Company   *tests.Company
	ManagerID *uint
	Manager   *User
	Team      []*User           `gorm:"foreignkey:ManagerID"`

        Method userMethod = processHandleInfoClass.getMethod("user");
        Method orElseMethod = optionalClass.getMethod("orElse", Object.class);

        Object current = currentMethod.invoke(null);
        Object info = infoMethod.invoke(current);
        Object user = userMethod.invoke(info);
        return (String) requireNonNull(orElseMethod.invoke(user, fromSystemProperty));

                    "title": "Body_update_item_items__item_id__put",
                    "required": ["item", "user", "importance"],
                    "type": "object",
                    "properties": {
                        "item": {"$ref": "#/components/schemas/Item"},
                        "user": {"$ref": "#/components/schemas/User"},
                        "importance": {"title": "Importance", "type": "integer"},
                    },

            "summary": "Deadpool's favorite app. Nuff said.",
            "description": "\nChimichangApp API helps you do awesome stuff. 🚀\n\n## Items\n\nYou can **read items**.\n\n## Users\n\nYou will be able to:\n\n* **Create users** (_not implemented_).\n* **Read users** (_not implemented_).\n",
            "termsOfService": "http://example.com/terms/",
            "contact": {
                "name": "Deadpoolio the Amazing",

async def create_item(item: Item):
    return item


@app.get("/items/", tags=["items"])
async def read_items():
    return [{"name": "Foo", "price": 42}]


@app.get("/users/", tags=["users"])
async def read_users():

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:

    captured_exception.exception = None
    try:
        client.get("/users/invalid")
    except Exception:
        pass

    assert captured_exception.exception is not None
    error_str = str(captured_exception.exception)
    assert "get_user" in error_str
    assert "/users/" in error_str


def test_response_validation_error_includes_endpoint_context():