*
       * Example:
       * ```
       * --> POST /greeting http/1.1 (3-byte body)
       *
       * <-- 200 OK (22ms, 6-byte body)
       * ```
       */
      BASIC,

      /**
       * Logs request and response lines and their respective headers.
       *
       * Example:
       * ```
       * --> POST /greeting http/1.1
       * Host: example.com
       * Content-Type: plain/text

  /** For example, empty Protobuf RPC messages end up as a zero-length POST.  */
  @Test
  fun zeroLengthPost() {
    zeroLengthPayload("POST")
  }

  @Test
  fun zeroLengthPost_HTTP_2() {
    enableProtocol(Protocol.HTTP_2)
    zeroLengthPost()
  }

  /** For example, creating an Amazon S3 bucket ends up as a zero-length POST.  */
  @Test
  fun zeroLengthPut() {
    zeroLengthPayload("PUT")

_2019-06-26_

**This release upgrades OkHttp to Kotlin.** We tried our best to make fast and safe to upgrade
from OkHttp 3.x. We wrote an [upgrade guide][upgrading_to_okhttp_4] to help with the migration and a
[blog post][okhttp4_blog_post] to explain it.

 *  Fix: Target Java 8 bytecode for Java and Kotlin.


## Version 4.0.0-RC3

_2019-06-24_

class Main : CliktCommand(name = NAME, help = "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()

```


#### RecordedRequest

Verify requests by their method, path, HTTP version, body, and headers.

```java
RecordedRequest request = server.takeRequest();
assertEquals("POST /v1/chat/send HTTP/1.1", request.getRequestLine());
assertEquals("application/json; charset=utf-8", request.getHeader("Content-Type"));
assertEquals("{}", request.getBody().readUtf8());
```

#### Dispatcher

    .build();
client.newCall(newYorkTimesRequest).enqueue(new Callback() {
  ...
});
```

Running this race over home WiFi shows the Times (`0002`) completes just slightly sooner than the Post (`0001`):

```
0001 https://www.washingtonpost.com/
0001 0.000 callStart
0002 https://www.nytimes.com/
0002 0.000 callStart
0002 0.010 dnsStart
0001 0.013 dnsStart
0001 0.022 dnsEnd

   prevent flakiness from multiple threads concurrently accessing a stream.

## Version 1.5.3

_2014-03-29_

 * Fix bug where the Content-Length header was not always dropped when
   following a redirect from a POST to a GET.
 * Implement basic support for `Thread.interrupt()`. OkHttp now checks
   for an interruption before doing a blocking call. If it is interrupted,
   it throws an `InterruptedIOException`.

## Version 1.5.2

    assertThat(delete.method).isEqualTo("DELETE")
    assertThat(delete.body!!.contentLength()).isEqualTo(0L)

    val post = Request.Builder().url("http://localhost/api").post(body).build()
    assertThat(post.method).isEqualTo("POST")
    assertThat(post.body).isEqualTo(body)

    val put = Request.Builder().url("http://localhost/api").put(body).build()
    assertThat(put.method).isEqualTo("PUT")

    return DnsOverHttps.Builder()
      .client(bootstrapClient)
      .url("https://dns.google/dns-query".toHttpUrl())
      .bootstrapDnsHosts(getByIp("8.8.4.4"), getByIp("8.8.8.8"))
      .post(true)
      .build()
  }

  private fun buildCloudflareIp(bootstrapClient: OkHttpClient): DnsOverHttps {
    return DnsOverHttps.Builder()
      .client(bootstrapClient)

  /**
   * Constructs a new request.
   *
   * Use [Builder] for more fluent construction, including helper methods for various HTTP methods.
   *
   * @param method defaults to "GET" if [body] is null, and "POST" otherwise.
   */
  constructor(
    url: HttpUrl,
    headers: Headers = headersOf(),
    // '\u0000' is a sentinel value that'll choose based on what the body is:
    method: String = "\u0000",