> ## Documentation Index
> Fetch the complete documentation index at: https://algolia.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Create an A/B test

> Creates a new A/B test.

**Required ACL:** `editSettings`

## Usage

<CodeGroup>
  ```cs C# theme={"system"}
  // Initialize the client
  var client = new AbtestingClient(
    new AbtestingConfig("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY", "ALGOLIA_APPLICATION_REGION")
  );

  // Call the API
  var response = await client.AddABTestsAsync(
    new AddABTestsRequest
    {
      EndAt = "2022-12-31T00:00:00.000Z",
      Name = "myABTest",
      Variants = new List<AddABTestsVariant>
      {
        new AddABTestsVariant(new AbTestsVariant { Index = "AB_TEST_1", TrafficPercentage = 30 }),
        new AddABTestsVariant(new AbTestsVariant { Index = "AB_TEST_2", TrafficPercentage = 50 }),
      },
    }
  );

  // print the response
  Console.WriteLine(response);
  ```

  ```go Go theme={"system"}
  // Initialize the client with your application region, eg. abtesting.ALGOLIA_APPLICATION_REGION
  client, err := abtesting.NewClient("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY", abtesting.US)
  if err != nil {
    // The client can fail to initialize if you pass an invalid parameter.
    panic(err)
  }

  // Call the API
  response, err := client.AddABTests(client.NewApiAddABTestsRequest(

    abtesting.NewEmptyAddABTestsRequest().SetEndAt("2022-12-31T00:00:00.000Z").SetName("myABTest").SetVariants(
      []abtesting.AddABTestsVariant{*abtesting.AbTestsVariantAsAddABTestsVariant(
        abtesting.NewEmptyAbTestsVariant().SetIndex("AB_TEST_1").SetTrafficPercentage(30)), *abtesting.AbTestsVariantAsAddABTestsVariant(
        abtesting.NewEmptyAbTestsVariant().SetIndex("AB_TEST_2").SetTrafficPercentage(50))})))
  if err != nil {
    // handle the eventual error
    panic(err)
  }


  // print the response
  print(response)
  ```

  ```java Java theme={"system"}
  // Initialize the client
  AbtestingClient client = new AbtestingClient("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY", "ALGOLIA_APPLICATION_REGION");

  // Call the API
  ABTestResponse response = client.addABTests(
    new AddABTestsRequest()
      .setEndAt("2022-12-31T00:00:00.000Z")
      .setName("myABTest")
      .setVariants(
        Arrays.asList(
          new AbTestsVariant().setIndex("AB_TEST_1").setTrafficPercentage(30),
          new AbTestsVariant().setIndex("AB_TEST_2").setTrafficPercentage(50)
        )
      )
  );

  // print the response
  System.out.println(response);
  ```

  ```js JavaScript theme={"system"}
  // Initialize the client
  // Replace 'us' with your Algolia Application Region
  const client = algoliasearch('ALGOLIA_APPLICATION_ID', 'ALGOLIA_API_KEY').initAbtesting({ region: 'us' });

  // Call the API
  const response = await client.addABTests({
    endAt: '2022-12-31T00:00:00.000Z',
    name: 'myABTest',
    variants: [
      { index: 'AB_TEST_1', trafficPercentage: 30 },
      { index: 'AB_TEST_2', trafficPercentage: 50 },
    ],
  });


  // print the response
  console.log(response);
  ```

  ```kotlin Kotlin theme={"system"}
  // Initialize the client
  val client =
    AbtestingClient(
      appId = "ALGOLIA_APPLICATION_ID",
      apiKey = "ALGOLIA_API_KEY",
      region = "ALGOLIA_APPLICATION_REGION",
    )

  // Call the API
  var response =
    client.addABTests(
      addABTestsRequest =
        AddABTestsRequest(
          endAt = "2022-12-31T00:00:00.000Z",
          name = "myABTest",
          variants =
            listOf(
              AbTestsVariant(index = "AB_TEST_1", trafficPercentage = 30),
              AbTestsVariant(index = "AB_TEST_2", trafficPercentage = 50),
            ),
        )
    )


  // print the response
  println(response)
  ```

  ```php PHP theme={"system"}
  // Initialize the client
  $client = AbtestingClient::create('ALGOLIA_APPLICATION_ID', 'ALGOLIA_API_KEY', 'ALGOLIA_APPLICATION_REGION');

  // Call the API
  $response = $client->addABTests(
      ['endAt' => '2022-12-31T00:00:00.000Z',
          'name' => 'myABTest',
          'variants' => [
              ['index' => 'AB_TEST_1',
                  'trafficPercentage' => 30,
              ],

              ['index' => 'AB_TEST_2',
                  'trafficPercentage' => 50,
              ],
          ],
      ],
  );


  // print the response
  var_dump($response);
  ```

  ```python Python theme={"system"}
  # Initialize the client
  # In an asynchronous context, you can use AbtestingClient instead, which exposes the exact same methods.
  client = AbtestingClientSync(
      "ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY", "ALGOLIA_APPLICATION_REGION"
  )

  # Call the API
  response = client.add_ab_tests(
      add_ab_tests_request={
          "endAt": "2022-12-31T00:00:00.000Z",
          "name": "myABTest",
          "variants": [
              {
                  "index": "AB_TEST_1",
                  "trafficPercentage": 30,
              },
              {
                  "index": "AB_TEST_2",
                  "trafficPercentage": 50,
              },
          ],
      },
  )


  # print the response
  print(response)
  ```

  ```ruby Ruby theme={"system"}
  # Initialize the client
  client = Algolia::AbtestingClient.create("ALGOLIA_APPLICATION_ID", "ALGOLIA_API_KEY", "ALGOLIA_APPLICATION_REGION")

  # Call the API
  response = client.add_ab_tests(
    Algolia::Abtesting::AddABTestsRequest.new(
      end_at: "2022-12-31T00:00:00.000Z",
      name: "myABTest",
      variants: [
        Algolia::Abtesting::AbTestsVariant.new(index: "AB_TEST_1", traffic_percentage: 30),
        Algolia::Abtesting::AbTestsVariant.new(index: "AB_TEST_2", traffic_percentage: 50)
      ]
    )
  )


  # print the response
  puts(response)
  ```

  ```scala Scala theme={"system"}
  // Initialize the client
  val client = AbtestingClient(
    appId = "ALGOLIA_APPLICATION_ID",
    apiKey = "ALGOLIA_API_KEY",
    region = Option("ALGOLIA_APPLICATION_REGION")
  )

  // Call the API
  val response = Await.result(
    client.addABTests(
      addABTestsRequest = AddABTestsRequest(
        endAt = "2022-12-31T00:00:00.000Z",
        name = "myABTest",
        variants = Seq(
          AbTestsVariant(
            index = "AB_TEST_1",
            trafficPercentage = 30
          ),
          AbTestsVariant(
            index = "AB_TEST_2",
            trafficPercentage = 50
          )
        )
      )
    ),
    Duration(100, "sec")
  )

  // print the response
  println(response)
  ```

  ```swift Swift theme={"system"}
  // Initialize the client
  let client = try AbtestingClient(appID: "ALGOLIA_APPLICATION_ID", apiKey: "ALGOLIA_API_KEY", region: .us)

  // Call the API
  let response = try await client.addABTests(addABTestsRequest: AbtestingAddABTestsRequest(
      name: "myABTest",
      variants: [
          AbtestingAddABTestsVariant.abtestingAbTestsVariant(AbtestingAbTestsVariant(
              index: "AB_TEST_1",
              trafficPercentage: 30
          )),
          AbtestingAddABTestsVariant.abtestingAbTestsVariant(AbtestingAbTestsVariant(
              index: "AB_TEST_2",
              trafficPercentage: 50
          )),
      ],
      endAt: "2022-12-31T00:00:00.000Z"
  ))

  // print the response
  print(response)
  ```
</CodeGroup>

<Card icon="folder-code" horizontal="true" title="See the full API reference" arrow="true" href="/doc/rest-api/abtesting/add-ab-tests">
  For more details about input parameters
  and response fields.
</Card>