Call CreateFlowForWeb to create a workflow.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes CreateFlowForWeb

The operation that you want to perform. For API requests using the HTTP or HTTPS URL, this parameter is required. Set the value to CreateFlowForWeb.

ClusterId String Yes C-A23BD131A862****

The ID of the PolarDB cluster. You can call ListClusters view the cluster ID.

CreateCluster Boolean Yes false

Specifies whether to create a cluster through the cluster template. If this parameter is set to true, a cluster is created through the cluster template. The ID of the cluster must be the ID of the cluster template.(CT-xxx) otherwise, it is the existing cluster ID(C-xxx).

Description String Yes This is the description of a workflow

The description of the workflow.

Name String Yes my_flow_demo

The name of the workflow.

ProjectId String Yes FP-257A173659F5****

The ID of the project. You can call ListFlowProject view the project ID.

RegionId String Yes cn-hangzhou

The region ID of the resource. You can call the DescribeRegions operation to query the most recent region list.

StartSchedule Long No 1538017814000

The start time of scheduling. It is a timestamp whose data type is long. Example: System.currentTimeMillis () .

  • It must be less than EndSchedule.
  • It is required when CronExpr is not empty.
EndSchedule Long No 1538018814000

The end time of the scheduling of the workflow. It is a timestamp whose data type is long. Example: System.currentTimeMillis.() .

CronExpr String No 0 0 0-23/1 * * ?

The cron expression of the time-based scheduling of the workflow.

HostName String No emr-header-1.cluster-123456

The name of the host on which the node instance runs. You can call ListFlow or log on to the host to use hostname command.

Graph String No {"nodes":[{"id":"48d474ea","index":0,"spmAnchorId":"0.0.0.i0.766645eb2cmNtQ","attribute":{"type":"START"},"shape":"startControlNode","type":"node","y":250,"size":"80*34","x":500},{"id":"7ba480b3","index":1,"spmAnchorId":"5176.8250060.0.i19.771e28d0IPNQGE","attribute":{"jobType":"SHELL","jobId":"FJ-7BE1062897B19D25","type":"JOB"},"config":{"hostName":""},"label":"fail_job","shape":"shellJobNode","type":"node","y":398.5,"size":"170*34","x":470.5},{"id":"33202d60","index":2,"spmAnchorId":"5176.8250060.0.i23.771e28d0IPNQGE","attribute":{"type":"END"},"shape":"endControlNode","type":"node","y":562.5,"size":"80*34","x":430.5}],"edges":[{"id":"28167ea0","index":3,"source":"48d474ea","sourceAnchor":0,"target":"7ba480b3","targetAnchor":0},{"id":"e8d5ff52","index":4,"source":"7ba480b3","sourceAnchor":1,"target":"33202d60","targetAnchor":0}]}

DAG graphic information.

AlertConf String No {"items":[{"enable":true,"eventId":"EMR-210401001","alertUserGroupIdList":["AUG-b79bb29bb6e14ddd89674a242623851b"],"alertDingDingGroupList":["ADG-af1f9689d6194e2dbd89927d5c515172"]},{"enable":true,"eventId":"EMR-110401015","alertUserGroupIdList":["AUG-b79bb29bb6e14ddd89674a242623851b"],"alertDingDingGroupList":["ADG-af1f9689d6194e2dbd89927d5c515172"]},{"enable":true,"eventId":"EMR-110401002","alertUserGroupIdList":["AUG-b79bb29bb6e14ddd89674a242623851b"],"alertDingDingGroupList":["ADG-af1f9689d6194e2dbd89927d5c515172"]}]}

The alert notification configurations. eventId can be set to the following alerts:

  • EMR-210401001: indicates that the workflow instance execution failed.
  • EMR-110401002: indicates that the workflow instance execution succeeded.
  • EMR-110401015: indicates that a workflow node failed.
AlertUserGroupBizId String No -

A deprecated parameter.

AlertDingDingGroupBizId String No -

A deprecated parameter.

ParentFlowList String No F-62ECFC6E1BF6EAD2,F-1E6528634E67B615,F-7E0A84332E9D9A89

The parent workflows that the created workflow relies on. Separate the workflows with commas (,). You can call ListFlowInstance view the workflow ID.

ParentCategory String No FC-F2495319DA05****

The ID of the parent directory. You can call DescribeFlowCategory view. If it is empty, the default is the root directory.

Response parameters

Parameter Type Example Description
Id String F-7A39731FE719****

The ID of the workflow.

RequestId String 243D5A48-96A5-4C0C-8966-93CBF65635ED

The ID of the request.


Sample requests

http(s)://[Endpoint]/? Action=CreateFlowForWeb
&Description=This is the description of a created workflow
&<Common request parameters>

Sample success responses

XML format


JSON format

    "RequestId": "2670BCFB-925D-4C3E-9994-8D12F7A9F538",
    "Id": "F-7A39731FE719****"

Error codes

For a list of error codes, visit the API Error Center.