Upload and Attach an Image to the Block landing.block.uploadfile

curl -X POST \
          -H "Content-Type: application/json" \
          -d '{
            "block": 39556,
            "picture": ["banner.png", "**base64_image_content**"],
            "params": {
              "width": 1200,
              "height": 675
            },
            "auth": "**put_access_token_here**"
          }' \
          "https://**put.your-domain-here**/rest/landing.block.uploadfile.json"
        

// 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 } from '@bitrix24/b24jssdk'
        
        declare const $b24: B24Frame
        
        // Shape of the payload returned in result (match the "response handling" section of the page)
        type UploadFileResult = {
          id: number
          src: string
        }
        
        try {
          const response = await $b24.actions.v2.call.make<UploadFileResult>({
            method: 'landing.block.uploadfile',
            params: {
              block: 39556,
              picture: ['banner.png', '**base64_image_content**'],
              params: {
                width: 1200,
                height: 675,
              },
            },
            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.id, result.src)
          }
        } 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 uploadFile() {
            try {
              // Initialize the SDK inside a Bitrix24 frame
              const $b24 = await B24Js.initializeB24Frame()
        
              const response = await $b24.actions.v2.call.make({
                method: 'landing.block.uploadfile',
                params: {
                  block: 39556,
                  picture: ['banner.png', '**base64_image_content**'],
                  params: {
                    width: 1200,
                    height: 675,
                  },
                },
                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.id, result.src)
            } catch (error) {
              // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
              console.error(error)
            }
          }
        
          document.addEventListener('DOMContentLoaded', uploadFile)
        </script>
        

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.landing.block.uploadfile(
                block=39556,
                picture=[
                    "banner.png",
                    "**base64_image_content**",
                ],
                params={
                    "width": 1200,
                    "height": 675,
                },
            ).response
            result = bitrix_response.result
            print(result)
        except BitrixAPIError as error:
            print(
                "Bitrix API error",
                f"error: {error.error}",
                f"error_description: {error.error_description}",
                sep="\n",
            )
        except BitrixSDKException as error:
            print(f"Bitrix SDK error: {error.message}")
        except Exception as error:
            print(f"Unexpected error: {error}")
        

try {
            $response = $b24Service
                ->core
                ->call(
                    'landing.block.uploadfile',
                    [
                        'block' => 39556,
                        'picture' => ['banner.png', '**base64_image_content**'],
                        'params' => [
                            'width' => 1200,
                            'height' => 675,
                        ],
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo '<pre>';
            print_r($result);
            echo '</pre>';
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error uploading image: ' . $e->getMessage();
        }
        

BX24.callMethod(
            'landing.block.uploadfile',
            {
                block: 39556,
                picture: ['banner.png', '**base64_image_content**'],
                params: {
                    width: 1200,
                    height: 675
                }
            },
            function(result)
            {
                if (result.error())
                {
                    console.error(result.error());
                }
                else
                {
                    console.info(result.data());
                }
            }
        );
        

require_once('crest.php');
        
        $result = CRest::call(
            'landing.block.uploadfile',
            [
                'block' => 39556,
                'picture' => ['banner.png', '**base64_image_content**'],
                'params' => [
                    'width' => 1200,
                    'height' => 675,
                ],
            ]
        );
        
        echo '<pre>';
        print_r($result);
        echo '</pre>';
        

// client and ctx are already created — see the Go SDK section
        res, err := client.Core().Call(ctx, "landing.block.uploadfile", b24.Params{
        	"block":   39556,
        	"picture": []string{"banner.png", "**base64_image_content**"},
        	"params": b24.Params{
        		"width":  1200,
        		"height": 675,
        	},
        })
        if err != nil {
        	return fmt.Errorf("landing.block.uploadfile: %w", err)
        }
        
        var item struct {
        	ID  b24.ID `json:"id"`
        	Src string `json:"src"`
        }
        if err := json.Unmarshal(res.Result, &item); err != nil {
        	return fmt.Errorf("parse response: %w", err)
        }
        fmt.Println(item.ID, item.Src)