---
title: Recipes
description: A collection of common/useful code examples for Kotlin and Java
---


# Recipes

We've written some recipes that demonstrate how to solve common problems with OkHttp. Read through them to learn about how everything works together. Cut-and-paste these examples freely; that's what they're for.

### Synchronous Get ([.kt][SynchronousGetKotlin], [.java][SynchronousGetJava])

     *
     * ```kotlin
     *     val hash = body.sha256().hex()
     *     val query = Request
     *         .Builder()
     *         .query(body)
     *         .url("https://example.com/query")
     *         .cacheUrlOverride("https://example.com/query/$hash".toHttpUrl())
     *         .build()
     * ```
     *
     * @see cacheUrlOverride
     */
    open fun query(body: RequestBody): Builder = method("QUERY", body)

Example: Limit a MinIO cluster to accept at max 1600 simultaneous S3 API requests across all nodes of the cluster.

```sh
export MINIO_API_REQUESTS_MAX=1600
export MINIO_ROOT_USER=your-access-key

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
    }

    @Test
    void constructor_shouldInitializeFieldsAndCallSuper() {
        // Given
        int access = 0x01; // Example access value

        // When
        MsrpcSamrOpenDomain msrpcSamrOpenDomain = new MsrpcSamrOpenDomain(mockHandle, access, mockSid, mockDomainHandle);

        // Then
        // Verify that ptype is set to 0

  @Test
  fun requiresRequestBody() {
    assertTrue(requiresRequestBody("PUT"))
    assertFalse(requiresRequestBody("GET"))
  }

  @Test
  fun hasBody() {
    val request = Request.Builder().url("http://example.com").build()
    val response =
      Response
        .Builder()
        .code(200)
        .message("OK")
        .request(request)
        .protocol(Protocol.HTTP_2)
        .build()

  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example.group</groupId>
  <artifactId>testinvalidpom</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>

  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example.group</groupId>
  <artifactId>testinvalidpom</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId></groupId>

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example.group</groupId>
  <artifactId>valid-version-changelist</artifactId>
  <version>${changelist}</version>

  <description>
    This will test if the validation for the ci friendly versions
    is working correct.

    assert response.status_code == 200, response.text
    assert response.json() == {
        "username": "testtokenfakedecoded",
        "email": "john@example.com",
        "full_name": "John Doe",
        "disabled": None,
    }


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")

   * b)} is true if and only if {@code equivalence.equivalent(function.apply(a), function.apply(b))}
   * is true.
   *
   * <p>For example:
   *
   * {@snippet :
   * Equivalence<Person> SAME_AGE = Equivalence.equals().onResultOf(GET_PERSON_AGE);
   * }
   *
   * <p>{@code function} will never be invoked with a null value.
   *