Check the Existence of tasks.flow.Flow.isExists

curl -X POST \
        -H "Content-Type: application/json" \
        -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
        -d '{
            "flowData": {
                "name": "Flow Name"
            }
        }' \
        https://your-domain.bitrix24.com/rest/tasks.flow.Flow.isExists
        

// 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 FlowIsExistsResult = {
          exists: boolean
        }
        
        try {
          const response = await $b24.actions.v2.call.make<FlowIsExistsResult>({
            method: 'tasks.flow.Flow.isExists',
            params: {
              flowData: {
                name: 'Flow Name',
              },
            },
            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('Flow exists:', result.exists)
          }
        } 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 checkFlowIsExists() {
            try {
              // Initialize the SDK inside a Bitrix24 frame
              const $b24 = await B24Js.initializeB24Frame()
        
              const response = await $b24.actions.v2.call.make({
                method: 'tasks.flow.Flow.isExists',
                params: {
                  flowData: {
                    name: 'Flow Name',
                  },
                },
                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('Flow exists:', result.exists)
            } catch (error) {
              // Thrown on transport or SDK failures (AjaxError, SdkError, etc.)
              console.error(error)
            }
          }
        
          document.addEventListener('DOMContentLoaded', checkFlowIsExists)
        </script>
        

try {
            $response = $b24Service
                ->core
                ->call(
                    'tasks.flow.Flow.isExists',
                    [
                        'flowData' => [
                            'name' => 'Flow Name'
                        ]
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            if ($result->error()) {
                echo 'Error: ' . $result->error();
            } else {
                echo 'Info: ' . print_r($result->data(), true);
            }
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error checking flow existence: ' . $e->getMessage();
        }
        

BX24.callMethod(
            'tasks.flow.Flow.isExists',
            {
                flowData: {
                    name: 'Flow Name'
                }
            },
            function(result) {
                if (result.error()) {
                    console.error(result.error());
                } else {
                    console.info(result.data());
                }
            }
        );
        

require_once('crest.php'); // connecting CRest PHP SDK
        
        $flowData = [
            "name" => "Flow Name"
        ];
        
        // executing a request to the REST API
        $result = CRest::call(
            'tasks.flow.Flow.isExists',
            [
                'flowData' => $flowData
            ]
        );
        
        // Processing the response from Bitrix24
        if ($result['error']) {
            echo 'Error: '.$result['error_description'];
        } else {
            print_r($result['result']);
        }