app = FastAPI()

security = HTTPBasic()


@app.get("/users/me")
def read_current_user(credentials: Annotated[HTTPBasicCredentials, Depends(security)]):

```

Resultaria em algo equivalente a:

```Python
UserInDB(
    username="john",
    password="secret",
    email="******@****.***",
    full_name=None,
)
```

Ou mais exatamente, usando `user_dict` diretamente, com qualquer conteúdo que ele possa ter no futuro:

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],

        return Base64.getEncoder().encodeToString(type1Message.toByteArray());
    }

    /**
     * Generates a Type 3 NTLM message.
     *
     * @param username the username
     * @param password the password
     * @param domain the domain
     * @param workstation the workstation
     * @param challenge the Type 2 challenge message
     * @return the Base64-encoded Type 3 message

     *
     * @param form create form containing elevate word data
     * @param username current user's username
     * @param currentTime current timestamp
     * @return optional ElevateWord entity
     */
    public static OptionalEntity<ElevateWord> getEntity(final CreateForm form, final String username, final long currentTime) {
        switch (form.crudMode) {
        case CrudMode.CREATE:

                            "-Porg.gradle.performance.db.url" to "%performance.db.url%",
                            "-Porg.gradle.performance.db.username" to "%performance.db.username%",
                            "-Porg.gradle.performance.dependencyBuildIds" to dependencyBuildIds,
                            "-PperformanceBaselines" to dependencyBaselines,

/**
 * The login form.
 */
public class LoginForm {

    /**
     * Default constructor.
     */
    public LoginForm() {
        // Default constructor
    }

    /** The username. */
    @NotBlank
    public String username;

    /** The password. */
    @NotBlank
    public String password;

    /** The confirm password. */
    public String confirmPassword;

    /**

Para manejar eso, primero convertimos el `username` y `password` a `bytes` codificándolos con UTF-8.

Luego podemos usar `secrets.compare_digest()` para asegurar que `credentials.username` es `"stanleyjobson"`, y que `credentials.password` es `"swordfish"`.

{* ../../docs_src/security/tutorial007_an_py39.py hl[1,12:24] *}

Esto sería similar a:

```Python

            size += domainBytes.length;
        }

        final String userName = getUser();
        byte[] userBytes = null;
        if (userName != null && userName.length() != 0) {
            userBytes = unicode ? userName.getBytes(UNI_ENCODING) : userName.toUpperCase().getBytes(oemCp);
            size += userBytes.length;
        }

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


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


@app.post("/user/", response_model=UserOut)

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

你将能进行代码补全，这是在之前你可能曾认为不可能的事。例如，在来自请求 JSON 体（可能是嵌套的）中的键 `price`。

不会再输错键名，来回翻看文档，或者来回滚动寻找你最后使用的 `username` 或者 `user_name` 。



### 简洁

任何类型都有合理的**默认值**，任何和地方都有可选配置。所有的参数被微调，来满足你的需求，定义成你需要的 API。

但是默认情况下，一切都能**“顺利工作”**。

### 验证

* 校验大部分（甚至所有？）的 Python **数据类型**，包括：
    * JSON 对象 (`dict`).