ListNodeInputOrOutput - DataWorks - Alibaba Cloud Documentation Center

Queries the input and output information about a node. Only the ancestor or descendant nodes at the nearest level can be queried each time.

Debugging

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Debug

Authorization information

There is currently no authorization information disclosed in the API.

Request parameters

Parameter	Type	Required	Description	Example
NodeId	long	Yes	The node ID. You can call the ListNodes operation to query the ID.	12314567
ProjectEnv	string	Yes	The environment of the workspace. Valid values: DEV and PROD.	PROD
IoType	string	Yes	The type of node that you want to query. Valid values: input: ancestor node output: descendant node	output

Response parameters

Parameter	Type	Description	Example
	object	The response parameters.
HttpStatusCode	integer	The HTTP status code.	200
RequestId	string	The request ID.	E6F0DBDD-5AD****
ErrorMessage	string	The error message.	The project does not exist.
ErrorCode	string	The error code.	Invalid.Tenant.ProjectNotExists
Success	boolean	Indicates whether the request was successful.	true
Data	array<object>	The ancestor or descendant nodes.
Data	object
TableName	string	This parameter does not take effect. You cannot obtain the parameter settings.	dwd_xxx_table
Data	string	The name of the ancestor or descendant node.	xxxx.123141254_out
NodeId	long	The node ID.	1234667

Examples

Sample success responses

JSONformat

{
  "HttpStatusCode": 200,
  "RequestId": "E6F0DBDD-5AD****",
  "ErrorMessage": "The project does not exist.",
  "ErrorCode": "Invalid.Tenant.ProjectNotExists",
  "Success": true,
  "Data": [
    {
      "TableName": "dwd_xxx_table",
      "Data": "xxxx.123141254_out",
      "NodeId": 1234667
    }
  ]
}

Error codes

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation

No change history