icon-square.png...

logo-square.png...

 [AccessHeadersJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/AccessHeaders.java
 [AccessHeadersKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/AccessHeaders.kt

  fun nullRemovesTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag("a" as Any)
        .tag(null)
        .build()
    assertThat(request.tag<Any>()).isNull()
  }

  @Test
  fun removeAbsentTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag(null)
        .build()
    assertThat(request.tag<String>()).isNull()

      Request.Builder()
        .url("http://square.com/")
        .header("Connection", "upgrade")
        .header("Upgrade", "websocket")
        .header("Host", "square.com")
        .header("TE", "gzip")
        .build()
    val expected =
      headerEntries(
        ":method",
        "GET",
        ":path",
        "/",
        ":authority",
        "square.com",
        ":scheme",
        "http",
      )

  fun nullRemovesTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag("a")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

  @Test
  fun removeAbsentTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

## [Requests](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-request/)

Each HTTP request contains a URL, a method (like `GET` or `POST`), and a list of headers. Requests may also contain a body: a data stream of a specific content type.

## [Responses](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-response/)

[OkHttp30]: https://square.github.io/okhttp/changelog_3x/#version-300
[OkHttp310]: https://square.github.io/okhttp/changelog_3x/#version-310
[OkHttp311]: https://square.github.io/okhttp/changelog_3x/#version-320
[OkHttp312]: https://square.github.io/okhttp/changelog_3x/#version-330
[OkHttp313]: https://square.github.io/okhttp/changelog_3x/#version-340
[OkHttp314]: https://square.github.io/okhttp/changelog_3x/#version-310

site_name: OkHttp
site_url: https://square.github.io/okhttp/
repo_name: OkHttp
repo_url: https://github.com/square/okhttp
site_description: "Square’s meticulous HTTP client for the JVM, Android, and GraalVM"
site_author: Square, Inc.
remote_branch: gh-pages
edit_uri: ""

copyright: 'Copyright © 2022 Block, Inc.'

theme:
  name: 'material'
  favicon: assets/images/icon-square.png
  logo: assets/images/icon-square.png
  palette:

 * [PersistentCookieJar](https://github.com/franmontiel/PersistentCookieJar): A persistent `CookieJar`.
 * ⬜️ [Picasso](https://github.com/square/picasso): A powerful image downloading and caching library for Android.
 * ⬜️ [Retrofit](https://github.com/square/retrofit): Type-safe HTTP client for Android and Java by Square.
 * [ScribeJava](https://github.com/scribejava/scribejava): Simple OAuth library for Java