Добавить изображение в товар catalog.productImage.add

curl -X POST \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{"fields":{"productId":1,"type":"MORE_PHOTO"},"fileContent":["photo.png","iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg=="],"auth":"**put_access_token_here**"}' \
https://**put_your_bitrix24_address**/rest/catalog.productImage.add

// 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

// Shape of the payload returned in result (match the "response handling" section of the page)
type ProductImageAddResult = {
  productImage: {
    createTime: ISODate,
    detailUrl: string,
    downloadUrl: string,
    id: number,
    name: string,
    productId: number,
    type: 'DETAIL_PICTURE' | 'PREVIEW_PICTURE' | 'MORE_PHOTO',
  },
}

try {
  const response = await $b24.actions.v2.call.make<ProductImageAddResult>({
    method: 'catalog.productImage.add',
    params: {
      fields: {
        productId: 1,
        type: 'MORE_PHOTO',
      },
      fileContent: [
        'photo.png',
        'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg==',
      ],
    },
    requestId: Text.getUuidRfc4122()
  })

  // The payload is available only on a successful response
  if (!response.isSuccess) {
    console.error(response.getErrorMessages().join('; '))
  } else {
    const result = response.getData()!.result
    console.info(result.productImage.id, result.productImage.name, result.productImage.type)
  }
} 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 addProductImage() {
    try {
      // Initialize the SDK inside a Bitrix24 frame
      const $b24 = await B24Js.initializeB24Frame()

      const response = await $b24.actions.v2.call.make({
        method: 'catalog.productImage.add',
        params: {
          fields: {
            productId: 1,
            type: 'MORE_PHOTO',
          },
          fileContent: [
            'photo.png',
            'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg==',
          ],
        },
        requestId: B24Js.Text.getUuidRfc4122()
      })

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

      const result = response.getData().result
      console.info(result.productImage.id, result.productImage.name, result.productImage.type)
    } catch (error) {
      // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
      console.error(error)
    }
  }

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

from b24pysdk.errors import BitrixAPIError, BitrixSDKException

try:
    bitrix_response = client.catalog.product_image.add(
        fields={
            "productId": 1,
            "type": "MORE_PHOTO",
        },
        file_content=[
            "photo.png",
            "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg==",
        ],
    ).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(
            'catalog.productImage.add',
            [
                'fields' => [
                    'productId' => 1,
                    'type' => 'MORE_PHOTO',
                ],
                'fileContent' => [
                    'photo.png',
                    'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg==',
                ],
            ]
        );

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

    echo 'Success: ' . print_r($result, true);
    // Нужная вам логика обработки данных
    processData($result);

} catch (Throwable $e) {
    error_log($e->getMessage());
    echo 'Error adding product image: ' . $e->getMessage();
}

BX24.callMethod(
'catalog.productImage.add',
{
'fields': {
'productId': 1,
'type': 'MORE_PHOTO'
},
'fileContent': [
'photo.png',
'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg=='
]
},
function(result) {
if (result.error())
console.error(result.error());
else
console.log(result.data());
}
);

require_once('crest.php');

$result = CRest::call(
    'catalog.productImage.add',
    [
        'fields' => [
            'productId' => 1,
            'type' => 'MORE_PHOTO'
        ],
        'fileContent' => [
            'photo.png',
            'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg=='
        ]
    ]
);

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

// client и ctx уже созданы — см. раздел «SDK для Go»
res, err := client.Core().Call(ctx, "catalog.productImage.add", b24.Params{
	"fields": b24.Params{
		"productId": 1,
		"type":      "MORE_PHOTO",
	},
	"fileContent": []string{"photo.png", "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGP4z8DwHwAFAAH/iZk9HQAAAABJRU5ErkJggg=="},
})
if err != nil {
	return fmt.Errorf("catalog.productImage.add: %w", err)
}

// Ответ приходит как json.RawMessage — разберите его
// в структуру под форму ответа, показанную ниже на этой странице.
fmt.Printf("%s\n", res.Result)