Update Product catalog.product.update

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Accept: application/json" \
        -d '{"id":7651,"fields":{"name":"Basic T-shirt, white","previewText":"Cotton T-shirt, white","detailPicture":{"fileData":["photo.png","iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=="]},"property301":{"valueId":4083,"value":"TS-002"},"property305":[{"valueId":4085,"value":"Cotton"},{"value":"Linen"}]},"auth":"**put_access_token_here**"}' \
        https://**put_your_bitrix24_address**/rest/catalog.product.update
        

// 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 ProductResult = {
          element: {
            id: number,
            iblockId: number,
            iblockSectionId: number | null,
            iblockSection: number[] | null,
            name: string,
            code: string | null,
            active: string,
            xmlId: string,
            dateCreate: ISODate,
            timestampX: ISODate,
            previewPicture: { id: string, url: string, urlMachine: string } | null,
            detailPicture: { id: string, url: string, urlMachine: string } | null,
            property301: { value: string, valueId: string } | null,
            property305: Array<{ value: string, valueId: string }> | null,
            [key: string]: unknown,
          }
        }
        
        try {
          const response = await $b24.actions.v2.call.make<ProductResult>({
            method: 'catalog.product.update',
            params: {
              id: 7651,
              fields: {
                name: 'Basic T-shirt, white',
                previewText: 'Cotton T-shirt, white',
                detailPicture: {
                  fileData: ['photo.png', 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=='],
                },
                property301: {
                  valueId: 4083,
                  value: 'TS-002',
                },
                property305: [
                  {
                    valueId: 4085,
                    value: 'Cotton',
                  },
                  {
                    value: 'Linen',
                  },
                ],
              },
            },
            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('Updated product id:', result.element.id, 'name:', result.element.name)
          }
        } 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 updateProduct() {
            try {
              // Initialize the SDK inside a Bitrix24 frame
              const $b24 = await B24Js.initializeB24Frame()
        
              const response = await $b24.actions.v2.call.make({
                method: 'catalog.product.update',
                params: {
                  id: 7651,
                  fields: {
                    name: 'Basic T-shirt, white',
                    previewText: 'Cotton T-shirt, white',
                    detailPicture: {
                      fileData: ['photo.png', 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=='],
                    },
                    property301: {
                      valueId: 4083,
                      value: 'TS-002',
                    },
                    property305: [
                      {
                        valueId: 4085,
                        value: 'Cotton',
                      },
                      {
                        value: 'Linen',
                      },
                    ],
                  },
                },
                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('Updated product id:', result.element.id, 'name:', result.element.name)
            } catch (error) {
              // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
              console.error(error)
            }
          }
        
          document.addEventListener('DOMContentLoaded', updateProduct)
        </script>
        

from b24pysdk.errors import BitrixAPIError, BitrixSDKException
        
        try:
            bitrix_response = client.catalog.product.update(
                id=7651,
                fields={
                    "name": "Basic T-shirt, white",
                    "previewText": "Cotton T-shirt, white",
                    "detailPicture": {
                        "fileData": ["photo.png", "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=="],
                    },
                    "property301": {
                        "valueId": 4083,
                        "value": "TS-002",
                    },
                    "property305": [
                        {
                            "valueId": 4085,
                            "value": "Cotton",
                        },
                        {
                            "value": "Linen",
                        },
                    ],
                },
            ).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(
                    'catalog.product.update',
                    [
                        'id'     => 7651,
                        'fields' => [
                            'name'          => 'Basic T-shirt, white',
                            'previewText'   => 'Cotton T-shirt, white',
                            'detailPicture' => [
                                'fileData' => ['photo.png', 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=='],
                            ],
                            'property301'   => [
                                'valueId' => 4083,
                                'value'   => 'TS-002',
                            ],
                            'property305'   => [
                                [
                                    'valueId' => 4085,
                                    'value'   => 'Cotton',
                                ],
                                [
                                    'value' => 'Linen',
                                ],
                            ],
                        ],
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error updating product: ' . $e->getMessage();
        }
        

BX24.callMethod(
            'catalog.product.update',
            {
                'id': 7651,
                'fields': {
                    'name': 'Basic T-shirt, white',
                    'previewText': 'Cotton T-shirt, white',
                    'detailPicture': {
                        'fileData': ['photo.png', 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg==']
                    },
                    'property301': {
                        'valueId': 4083,
                        'value': 'TS-002'
                    },
                    'property305': [
                        {
                            'valueId': 4085,
                            'value': 'Cotton'
                        },
                        {
                            'value': 'Linen'
                        }
                    ]
                }
            },
            function(result)
            {
                if(result.error())
                    console.error(result.error());
                else
                    console.log(result.data());
            }
        );
        

require_once('crest.php');
        
        $result = CRest::call(
            'catalog.product.update',
            [
                'id'     => 7651,
                'fields' => [
                    'name'          => 'Basic T-shirt, white',
                    'previewText'   => 'Cotton T-shirt, white',
                    'detailPicture' => [
                        'fileData' => ['photo.png', 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=='],
                    ],
                    'property301'   => [
                        'valueId' => 4083,
                        'value'   => 'TS-002',
                    ],
                    'property305'   => [
                        [
                            'valueId' => 4085,
                            'value'   => 'Cotton',
                        ],
                        [
                            'value' => 'Linen',
                        ],
                    ],
                ],
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';
        

// client and ctx are already created — see the Go SDK section
        res, err := client.Core().Call(ctx, "catalog.product.update", b24.Params{
        	"id":     7651,
        	"fields": b24.Params{
        		"name":          "Basic T-shirt, white",
        		"previewText":   "Cotton T-shirt, white",
        		"detailPicture": b24.Params{
        			"fileData": []string{"photo.png", "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=="},
        		},
        		"property301":   b24.Params{
        			"valueId": 4083,
        			"value":   "TS-002",
        		},
        		"property305":   []b24.Params{
        			b24.Params{
        				"valueId": 4085,
        				"value":   "Cotton",
        			},
        			b24.Params{
        				"value": "Linen",
        			},
        		},
        	},
        })
        if err != nil {
        	return fmt.Errorf("catalog.product.update: %w", err)
        }
        
        // The method wraps the response in an object with the "element" key.
        raw, ok := b24.Unwrap(res.Result, "element")
        if !ok {
        	return fmt.Errorf("no element key in the response")
        }
        
        var item struct {
        	ID              int    `json:"id"`
        	IblockID        int    `json:"iblockId"`
        	IblockSectionID int    `json:"iblockSectionId"`
        	Name            string `json:"name"`
        	Code            string `json:"code"`
        	Active          string `json:"active"`
        	XMLID           string `json:"xmlId"`
        }
        if err := json.Unmarshal(raw, &item); err != nil {
        	return fmt.Errorf("parse response: %w", err)
        }
        fmt.Println(item.ID, item.Name)