Se você abrir no seu navegador a URL:

```
http://127.0.0.1:8000/items/foo-item
```

... sem adicionar o parâmetro obrigatório `needy`, você verá um erro como:

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }

appropriateness of using and distributing the Program and assumes all
risks associated with its exercise of rights under this Agreement,
including but not limited to the risks and costs of program errors,
compliance with applicable laws, damage to or loss of data, programs
or equipment, and unavailability or interruption of operations.

6. DISCLAIMER OF LIABILITY

using and distributing the Program and assumes all risks associated with its
exercise of rights under this Agreement, including but not limited to the
risks and costs of program errors, compliance with applicable laws, damage
to or loss of data, programs or equipment, and unavailability or interruption
of operations.

   6. DISCLAIMER OF LIABILITY

    return DerHeader(tagClass, tag, constructed, length)
  }

  /**
   * Consume a header and execute [block], which should consume the entire value described by the
   * header. It is an error to not consume a full value in [block].
   */
  internal inline fun <T> read(
    name: String?,
    block: (DerHeader) -> T,
  ): T {
    if (!hasNext()) throw ProtocolException("expected a value")

      127 -> {
        // Mapped inline to the sequence: [b2a, b3a].
        sink.writeByte(ranges[rangesIndex + 2].code or 0x80)
        sink.writeByte(ranges[rangesIndex + 3].code or 0x80)
      }
      else -> error("unexpected rangesIndex for $codePoint")
    }

    return true
  }

  /**
   * Binary search [sections] for [codePoint], looking at its top 14 bits.
   *

```

Java Modules
------------

OkHttp (5.2+) implements Java 9 Modules.

With this in place Java builds should fail if apps attempt to use internal packages.

```
error: package okhttp3.internal.platform is not visible
    okhttp3.internal.platform.Platform.get();
                    ^
  (package okhttp3.internal.platform is declared in module okhttp3,

    }

    /**
     * Creates a Type-2 message using the given raw Type-2 material.
     *
     * @param material The raw Type-2 material used to construct this message.
     * @throws IOException If an error occurs while parsing the material.
     */
    public Type2Message(final byte[] material) throws IOException {
        parse(material);
    }

    /**
     * Returns the challenge for this message.
     *

   *
   * If the response body was successfully read until the end, this is the headers that followed,
   * or empty headers if there were none that followed.
   *
   * If the response body was closed prematurely or failed with an error, this will be the sentinel
   * value [TRAILERS_RESPONSE_BODY_TRUNCATED]. In that case attempts to read the trailers should not
   * return the value but instead throw an exception.
   */
  private var trailers: Headers? = null

        .body(
          object : ResponseBody() {
            override fun contentType(): MediaType? = null

            override fun contentLength(): Long = -1L

            override fun source(): BufferedSource = error("unexpected call")
          },
        ).trailers(
          object : TrailersSource {
            override fun get(): Headers = headersOf("t1", "v1")
          },
        ).build()

Actualiza `get_current_user` para recibir el mismo token que antes, pero esta vez, usando tokens JWT.

Decodifica el token recibido, verifícalo y devuelve el usuario actual.

Si el token es inválido, devuelve un error HTTP de inmediato.

{* ../../docs_src/security/tutorial004_an_py310.py hl[90:107] *}

## Actualizar la *path operation* `/token` { #update-the-token-path-operation }