`After that,' continued the Hatter, `I cut some more bread-
and-butter--'

  `But what did the Dormouse say?' one of the jury asked.

  `That I can't remember,' said the Hatter.

  `You MUST remember,' remarked the King, `or I'll have you
executed.'

  The miserable Hatter dropped his teacup and bread-and-butter,
and went down on one knee.  `I'm a poor man, your Majesty,' he

  `After that,' continued the Hatter, `I cut some more bread-
and-butter--'

  `But what did the Dormouse say?' one of the jury asked.

  `That I can't remember,' said the Hatter.

  `You MUST remember,' remarked the King, `or I'll have you
executed.'

  The miserable Hatter dropped his teacup and bread-and-butter,
and went down on one knee.  `I'm a poor man, your Majesty,' he

!!! check "Authorize button!"
    You already have a shiny new "Authorize" button.

    And your *path operation* has a little lock in the top-right corner that you can click.

And if you click it, you have a little authorization form to type a `username` and `password` (and other optional fields):

<img src="/img/tutorial/security/image02.png">

!!! note

import mockwebserver3.MockResponseBody
import okio.Buffer
import okio.BufferedSink

internal fun Buffer.toMockResponseBody(): MockResponseBody {
  val defensiveCopy = clone()
  return BufferMockResponseBody(defensiveCopy)
}

internal class BufferMockResponseBody(
  val buffer: Buffer,
) : MockResponseBody {
  override val contentLength = buffer.size

  override fun writeTo(sink: BufferedSink) {

  private fun String.map(): String {
    val buffer = Buffer()
    for (codePoint in codePoints()) {
      require(table.map(codePoint, buffer))
    }
    return buffer.readUtf8()
  }

  private fun String.mapExpectingErrors(): String {
    val buffer = Buffer()
    var errorCount = 0
    for (codePoint in codePoints()) {
      if (!table.map(codePoint, buffer)) errorCount++
    }

# Reference - Code API

Here's the reference or code API, the classes, functions, parameters, attributes, and
all the FastAPI parts you can use in your applications.

If you want to **learn FastAPI** you are much better off reading the

    // required. These socket factories explicitly set the buffer sizes on sockets created.
    server = MockWebServer()
    server.serverSocketFactory =
      object : DelegatingServerSocketFactory(getDefault()) {
        @Throws(SocketException::class)
        override fun configureServerSocket(serverSocket: ServerSocket): ServerSocket {
          serverSocket.setReceiveBufferSize(SOCKET_BUFFER_SIZE)
          return serverSocket
        }
      }

   * Use this method to create a degenerate Okio Buffer where each byte is in a separate segment of
   * the internal list.
   */
  @JvmStatic
  fun fragmentBuffer(buffer: Buffer): Buffer {
    // Write each byte into a new buffer, then clone it so that the segments are shared.
    // Shared segments cannot be compacted so we'll get a long chain of short segments.
    val result = Buffer()
    while (!buffer.exhausted()) {
      val box = Buffer()

@Throws(IOException::class)
fun Response.commonPeekBody(byteCount: Long): ResponseBody {
  val peeked = body.source().peek()
  val buffer = Buffer()
  peeked.request(byteCount)
  buffer.write(peeked, minOf(byteCount, peeked.buffer.size))
  return buffer.asResponseBody(body.contentType(), buffer.size)
}

fun Response.commonNewBuilder(): Response.Builder = Response.Builder(this)

val Response.commonIsRedirect: Boolean
  get() =

          "2c2c2fe63ecedcfc01fec37798ba7409c690000"
      ).decodeHex()
    val buffer = Buffer()
    buffer.write(gzippedBrotliBomb)
    return (buffer as BufferedSource).gzip().buffer().use {
      it.readByteString()
    }
  }