tasks.task.get

curl -X POST \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{"taskId":8017,"select":["ID","TITLE","DESCRIPTION","CREATED_BY","RESPONSIBLE_ID","DEADLINE","UF_CRM_TASK","UF_TASK_WEBDAV_FILES"],"auth":"**put_access_token_here**"}' \
https://**put_your_bitrix24_address**/rest/tasks.task.get

// This snippet is an ES module: top-level await requires type="module" or a bundler.
// $b24 is an already-initialized SDK instance (see the SDK "Get started" guide).
import { Text } from '@bitrix24/b24jssdk'
import type { B24Frame, ISODate } from '@bitrix24/b24jssdk'

declare const $b24: B24Frame

// result.task limited to the requested (select) fields, in the SDK camelCase form
// Shape of the payload returned in result (match the "response handling" section of the page)
type TaskGetResult = {
  task: {
    id: string
    title: string
    description: string
    createdBy: string
    responsibleId: string
    deadline: ISODate | null
    ufCrmTask: string[]
    ufTaskWebdavFiles: number[]
  }
}

try {
  const response = await $b24.actions.v2.call.make<TaskGetResult>({
    method: 'tasks.task.get',
    params: {
      taskId: 8017, // ID of the task to read
      // Request only the fields you need
      select: [
        'ID',
        'TITLE',
        'DESCRIPTION',
        'CREATED_BY',
        'RESPONSIBLE_ID',
        'DEADLINE',
        'UF_CRM_TASK',
        'UF_TASK_WEBDAV_FILES'
      ]
    },
    requestId: Text.getUuidRfc4122() // optional unique tracking id for this request
  })

  // The payload is available only on a successful response
  if (!response.isSuccess) {
    console.error(response.getErrorMessages().join('; '))
  } else {
    const task = response.getData()!.result.task
    console.info(`Fetched task ${task.id}: ${task.title}`)
  }
} catch (error) {
  // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
  console.error(error)
}

<!-- Load the SDK (UMD build); it is exposed as the global B24Js -->
<script src="https://unpkg.com/@bitrix24/b24jssdk@1/dist/umd/index.min.js"></script>
<script>
  async function getTask() {
    try {
      // Initialize the SDK inside a Bitrix24 frame
      const $b24 = await B24Js.initializeB24Frame()

      const response = await $b24.actions.v2.call.make({
        method: 'tasks.task.get',
        params: {
          taskId: 8017, // ID of the task to read
          // Request only the fields you need
          select: [
            'ID',
            'TITLE',
            'DESCRIPTION',
            'CREATED_BY',
            'RESPONSIBLE_ID',
            'DEADLINE',
            'UF_CRM_TASK',
            'UF_TASK_WEBDAV_FILES'
          ]
        },
        requestId: B24Js.Text.getUuidRfc4122() // optional unique tracking id for this request
      })

      // The payload is available only on a successful response
      if (!response.isSuccess) {
        console.error(response.getErrorMessages().join('; '))
        return
      }

      const task = response.getData().result.task
      console.info(`Fetched task ${task.id}: ${task.title}`)
    } catch (error) {
      // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
      console.error(error)
    }
  }

  document.addEventListener('DOMContentLoaded', getTask)
</script>

from b24pysdk.errors import BitrixAPIError, BitrixSDKException

try:
    bitrix_response = client.tasks.task.get(
        bitrix_id=8017,
        select=[
            "ID",
            "TITLE",
            "DESCRIPTION",
            "CREATED_BY",
            "RESPONSIBLE_ID",
            "DEADLINE",
            "UF_CRM_TASK",
            "UF_TASK_WEBDAV_FILES",
        ],
    ).response
    result = bitrix_response.result
    print(result)
except BitrixAPIError as error:
    print(
        "Ошибка Bitrix API",
        f"error: {error.error}",
        f"error_description: {error.error_description}",
        sep="\n",
    )
except BitrixSDKException as error:
    print(f"Ошибка Bitrix SDK: {error.message}")
except Exception as error:
    print(f"Непредвиденная ошибка: {error}")

try {
    $response = $b24Service
        ->core
        ->call(
            'tasks.task.get',
            [
                'taskId' => 8017,
                'select' => [
                    'ID',
                    'TITLE',
                    'DESCRIPTION',
                    'CREATED_BY',
                    'RESPONSIBLE_ID',
                    'DEADLINE',
                    'UF_CRM_TASK',
                    'UF_TASK_WEBDAV_FILES'
                ]
            ]
        );

    $result = $response
        ->getResponseData()
        ->getResult();

    echo 'Success: ' . print_r($result, true);
    processData($result);

} catch (Throwable $e) {
    error_log($e->getMessage());
    echo 'Error fetching task: ' . $e->getMessage();
}

BX24.callMethod(
    'tasks.task.get',
    {
        taskId: 8017,
        select: [
            'ID',
            'TITLE',
            'DESCRIPTION',
            'CREATED_BY',
            'RESPONSIBLE_ID',
            'DEADLINE',
            'UF_CRM_TASK',
            'UF_TASK_WEBDAV_FILES'
        ]
    },
    function(result){
        console.info(result.data());
        console.log(result);
    }
);

require_once('crest.php');

$result = CRest::call(
    'tasks.task.get',
    [
        'taskId' => 8017,
        'select' => [
            'ID',
            'TITLE',
            'DESCRIPTION',
            'CREATED_BY',
            'RESPONSIBLE_ID',
            'DEADLINE',
            'UF_CRM_TASK',
            'UF_TASK_WEBDAV_FILES'
        ]
    ]
);

echo '<PRE>';
print_r($result);
echo '</PRE>';

// client и ctx уже созданы — см. раздел «SDK для Go»
res, err := client.Core().Call(ctx, "tasks.task.get", b24.Params{
	"taskId": 8017,
	"select": []string{"ID", "TITLE", "DESCRIPTION", "CREATED_BY", "RESPONSIBLE_ID", "DEADLINE", "UF_CRM_TASK", "UF_TASK_WEBDAV_FILES"},
}, b24.WithIdempotent())
if err != nil {
	return fmt.Errorf("tasks.task.get: %w", err)
}

// Метод заворачивает ответ в объект с ключом "task".
raw, ok := b24.Unwrap(res.Result, "task")
if !ok {
	return fmt.Errorf("в ответе нет ключа task")
}

var item struct {
	ID            b24.ID `json:"id"`
	Title         string `json:"title"`
	Description   string `json:"description"`
	CreatedBy     string `json:"createdBy"`
	ResponsibleID b24.ID `json:"responsibleId"`
	Deadline      string `json:"deadline"`
}
if err := json.Unmarshal(raw, &item); err != nil {
	return fmt.Errorf("разбор ответа: %w", err)
}
fmt.Println(item.ID, item.Title)