![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

### Documentación alternativa de la API { #alternative-api-docs }

Y ahora, ve a [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc).

Verás la documentación alternativa automática (proporcionada por [ReDoc](https://github.com/Rebilly/ReDoc)):

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

### Documentação Alternativa da API { #alternative-api-docs }

E agora, vá para [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc).

Você verá a documentação automática alternativa (fornecida por [ReDoc](https://github.com/Rebilly/ReDoc)):

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

<img src="/img/tutorial/path-params/image01.png">

/// check | 检查

还是使用 Python 类型声明，**FastAPI** 提供了（集成 Swagger UI 的）自动交互式文档。

注意，路径参数的类型是整数。

///

## 基于标准的好处，备选文档 { #standards-based-benefits-alternative-documentation }

**FastAPI** 使用 [OpenAPI](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md) 生成概图，所以能兼容很多工具。

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

### Альтернативная документация API { #alternative-api-docs }

Теперь откройте [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc).

Вы увидите альтернативную автоматическую документацию (предоставлена [ReDoc](https://github.com/Rebilly/ReDoc)):

            c[ci++] = '|';
            NL.getChars(0, NL_LENGTH, c, ci);
            ci += NL_LENGTH;
        } while (si < length);

        ps.println(c);
    }

    /**
     * This is an alternative to the <code>java.lang.Integer.toHexString</code>
     * method. It is an efficient relative that also will pad the left side so
     * that the result is <code>size</code> digits.
     *

 *
 * <ul>
 *   <li>The raw {@code long} values returned by {@code nanoTime} are meaningless and unsafe to use
 *       in any other way than how {@code Stopwatch} uses them.
 *   <li>An alternative source of nanosecond ticks can be substituted, for example for testing or
 *       performance reasons, without affecting most of your code.
 * </ul>
 *

import java.nio.charset.CodingErrorAction;
import java.util.Arrays;

/**
 * An {@link InputStream} that converts characters from a {@link Reader} into bytes using an
 * arbitrary Charset.
 *
 * <p>This is an alternative to copying the data to an {@code OutputStream} via a {@code Writer},
 * which is necessarily blocking. By implementing an {@code InputStream} it allows consumers to

Other HTTP libraries exist that fill that gap allowing extensive customisation including potentially
invalid requests.

Example Limitations

* Does not allow GET with a body.
* Cache is not an interface with alternative implementations.

Get a URL
---------

This program downloads a URL and prints its contents as a string. [Full source][get_example].

```java
OkHttpClient client = new OkHttpClient();

  }

  /**
   * Indicates that the load and store operations will be very efficient because of use of VarHandle
   * or Unsafe. May be useful for calling code to fall back on an alternative implementation that is
   * slower than those implementations but faster than the pure-Java mask-and-shift.
   */
  static boolean usingFastPath() {
    return byteArray.usesFastPath();
  }

  /**

자동 대화형 API 문서를 볼 수 있습니다 ([Swagger UI](https://github.com/swagger-api/swagger-ui) 제공):

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

### 대안 API 문서 { #alternative-api-docs }

그리고 이제 [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc)로 가봅시다.

다른 자동 문서를 볼 수 있습니다([ReDoc](https://github.com/Rebilly/ReDoc) 제공):