# Using the Request Directly { #using-the-request-directly }

Up to now, you have been declaring the parts of the request that you need with their types.

Taking data from:

* The path as parameters.
* Headers.
* Cookies.
* etc.

And by doing so, **FastAPI** is validating that data, converting it and generating documentation for your API automatically.

But there are situations where you might need to access the `Request` object directly.

    fun asConfigurationId(model: CIBuildModel): String

    fun asName(): String

    fun channel(): String
}

data class PerformanceTestPartialTrigger(
    val triggerName: String,
    val triggerId: String,
    val dependencies: List<PerformanceTestCoverage>,
)

data class PerformanceTestCoverage(
    private val uuid: Int,
    override val type: PerformanceTestType,
    override val os: Os,

    val data = Buffer().writeUtf8(content)
    val source: Source =
      object : Source {
        var closed = false

        override fun close() {
          closed = true
        }

        override fun read(
          sink: Buffer,
          byteCount: Long,
        ): Long {
          check(!closed)
          return data.read(sink, byteCount)
        }

    /**
     * Create a test byte array with specified size and pattern
     */
    private byte[] createTestData(int size) {
        byte[] data = new byte[size];
        for (int i = 0; i < size; i++) {
            data[i] = (byte) (i % 256);
        }
        return data;
    }

  override fun help(context: Context): String = "A curl for the next-generation web."

  val method: String? by option("-X", "--request").help("Specify request command to use")

  val data: String? by option("-d", "--data").help("HTTP POST data")

  val headers: List<String>? by option("-H", "--header").help("Custom header to pass to server").multiple()

  val userAgent: String by option(
    "-A",
    "--user-agent",
  ).help(

        buf.enc_ndr_long(0x00000010); // data representation
        buf.enc_ndr_short(20); // length
        buf.enc_ndr_short(0); // auth length
        buf.enc_ndr_long(0); // call_id

        // Response body
        buf.enc_ndr_long(4); // alloc_hint
        buf.enc_ndr_short(0); // context_id
        buf.enc_ndr_short(0); // cancel_count
        buf.enc_ndr_small(0xAB); // test data for decode_out

        // Decode

                    example: ["aaa"]
                  related_contents:
                    type: array
                    items:
                      type: string
                    example: []
                  data:
                    type: array
                    items:
                      type: object
                      properties:
                        filetype:
                          type: string

    }

    /**
     * Reads up to b.length bytes of data from this input stream into an array of bytes.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public int read(final byte[] b) throws IOException {
        return read(b, 0, b.length);
    }

    /**
     * Reads up to len bytes of data from this input stream into an array of bytes.
     *

`UploadFile` имеет следующие методы `async`. Все они вызывают соответствующие файловые методы (используя внутренний SpooledTemporaryFile).

* `write(data)`: Записать данные `data` (`str` или `bytes`) в файл.
* `read(size)`: Прочитать количество `size` (`int`) байт/символов из файла.
* `seek(offset)`: Перейти к байту на позиции `offset` (`int`) в файле.

// encrypt it using the provided key and return the result.
func compressionIndexEncrypter(key crypto.ObjectKey, input func() []byte) func() []byte {
	var data []byte
	var fetched bool
	return func() []byte {
		if !fetched {
			data = input()
			fetched = true
		}
		return metadataEncrypter(key)("compression-index", data)
	}
}