DAG Edge Structure in DMS Task Flows Explained - Data Management - Alibaba Cloud - Data Management

Operation description

This operation supports multi-condition queries. Use it to query edges of a specified task flow that meet all specified conditions.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

dms:ListTaskFlowEdgesByCondition

list

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
Tid	integer	No	The ID of the tenant. Note To view the ID of the tenant, go to the Data Management (DMS) console and move the pointer over the profile picture in the upper-right corner. For more information, see View information about the current tenant.	3***
DagId	integer	Yes	The ID of the task flow. You can call the ListTaskFlow or ListLhTaskFlowAndScenario operation to query the task flow ID.	15***
Id	integer	No	The ID of the task flow edge.	24***
NodeFrom	integer	No	The ID of the start node on the edge.	44***
NodeEnd	integer	No	The ID of the end node on the edge.	44***

Response elements

Element	Type	Description	Example
	object
RequestId	string	The ID of the request. You can use the ID to locate logs and troubleshoot issues.	D86249CD-422F-5ACF-85BA-9187C986AE0B
ErrorCode	string	The error code returned if the request failed.	UnknownError
ErrorMessage	string	The error message returned if the request failed.	UnknownError
Success	boolean	Indicates whether the request was successful. Valid values: true: The request was successful. false: The request failed.	true
Edges	object
Edge	array<object>	The list of task flow edges.
	object
Id	integer	The ID of the task flow edge.	24***
NodeEnd	integer	The ID of the end node on the edge.	44***
NodeFrom	integer	The ID of the start node on the edge.	44***

Examples

Success response

JSON format

{
  "RequestId": "D86249CD-422F-5ACF-85BA-9187C986AE0B",
  "ErrorCode": "UnknownError",
  "ErrorMessage": "UnknownError",
  "Success": true,
  "Edges": {
    "Edge": [
      {
        "Id": 0,
        "NodeEnd": 0,
        "NodeFrom": 0
      }
    ]
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.