private val client = OkHttpClient()
  private val fileSystem = FakeFileSystem()
  val path = "test.json".toPath()

  fun run() {
    fileSystem.write(path) {
      writeUtf8("{}")
    }

    val request =
      Request.Builder()
        .url("https://httpbin.org/anything")
        .put(path.asRequestBody(fileSystem, MEDIA_TYPE_JSON))
        .build()

    client.newCall(request).execute().use { response ->

  testImplementation(libs.kotlin.test.annotations)
  testImplementation(libs.kotlin.test.common)
  testImplementation(libs.kotlinx.serialization.core)
  testImplementation(libs.kotlinx.serialization.json)
  testImplementation(projects.okhttpJavaNetCookiejar)
  testImplementation(projects.okhttpTls)
  testImplementation(projects.okhttpUrlconnection)
  testImplementation(projects.mockwebserver3)

      Request.Builder()
        .url("https://api.github.com/repos/square/okhttp/issues")
        .header("User-Agent", "OkHttp Headers.java")
        .addHeader("Accept", "application/json; q=0.5")
        .addHeader("Accept", "application/vnd.github.v3+json")
        .build()

    client.newCall(request).execute().use { response ->
      if (!response.isSuccessful) throw IOException("Unexpected code $response")

        "-d",
        "foo",
        "-H",
        "Content-Type: application/json",
        "http://example.com",
      ).createRequest()
    val body = request.body
    assertThat(request.method).isEqualTo("POST")
    assertThat(request.url.toString()).isEqualTo("http://example.com/")
    assertThat(body!!.contentType().toString())
      .isEqualTo("application/json; charset=utf-8")
    assertThat(bodyAsString(body)).isEqualTo("foo")
  }

          System.out.println(response.body().string());
        }
      }
    ```

### Parse a JSON Response With Moshi ([.kt][ParseResponseWithMoshiKotlin], [.java][ParseResponseWithMoshiJava])

[Moshi](https://github.com/square/moshi) is a handy API for converting between JSON and Java objects. Here we're using it to decode a JSON response from a GitHub API.

mydobiss.com

// FH Muenster : https://www.fh-muenster.de
// Submitted by Robin Naundorf <******@****.***>
fh-muenster.io

// Filegear Inc. : https://www.filegear.com
// Submitted by Jason Zhu <jason@owtware.com>
filegear.me
filegear-au.me
filegear-de.me
filegear-gb.me
filegear-ie.me
filegear-jp.me
filegear-sg.me

// Firebase, Inc.

17EA..17EF    ; disallowed                             # NA   <reserved-17EA>..<reserved-17EF>
17F0..17F9    ; valid                  ;      ; NV8    # 4.0  KHMER SYMBOL LEK ATTAK SON..KHMER SYMBOL LEK ATTAK PRAM-BUON
17FA..17FF    ; disallowed                             # NA   <reserved-17FA>..<reserved-17FF>
1800..1805    ; valid                  ;      ; NV8    # 3.0  MONGOLIAN BIRGA..MONGOLIAN FOUR DOTS

You can set a custom body with a string, input stream or byte array. Also
add headers with a fluent builder API.

```java
MockResponse response = new MockResponse()
    .addHeader("Content-Type", "application/json; charset=utf-8")
    .addHeader("Cache-Control", "no-cache")
    .setBody("{}");
```

MockResponse can be used to simulate a slow network. This is useful for
testing timeouts and interactive testing.

```java

kotlinx-serialization-core = { module = "org.jetbrains.kotlinx:kotlinx-serialization-core", version.ref = "kotlinx-serialization" }
kotlinx-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "kotlinx-serialization" }
mockserver = { module = "org.testcontainers:mockserver", version.ref = "testcontainers" }

package okhttp3

import kotlinx.serialization.Serializable
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.json.Json

/**
 * A test from the [Web Platform To ASCII](https://github.com/web-platform-tests/wpt/blob/master/url/resources/toascii.json).
 *
 * Each test is a line of the file `toascii.json`.
 */
@Serializable
class WebPlatformToAsciiData {
  var input: String? = null
  var output: String? = null