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DataWorks:ListNodeIO

Last Updated:Aug 01, 2026

Queries the information of upstream and downstream nodes. Only one level can be queried.

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RAM authorization

No authorization for this operation. If you encounter issues with this operation, contact technical support.

Request parameters

Parameter

Type

Required

Description

Example

NodeId

integer

Yes

The ID of the node. You can call ListNodes to query the NodeId.

1234

ProjectEnv

string

Yes

The environment in which the node runs. Valid values: DEV (development environment) and PROD (production environment).

Valid values:

  • PROD :

    Production environment.

  • DEV :

    Development environment.

PROD

IoType

string

Yes

Specifies whether to query upstream or downstream nodes. Valid values: input and output.

output

Response elements

Element

Type

Description

Example

object

HttpStatusCode

integer

The HTTP status code.

200

RequestId

string

The ID of the request, which is used to locate logs and troubleshoot issues.

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 call was successful.

true

Data

array<object>

The upstream and downstream information.

object

TableName

string

The name of the input or output table.

dataworks_a.datastudio_tenant_waitres_alarm

Data

string

The name of the input or output.

dataworks_a.1234_out

NodeId

integer

The node ID.

123123

Examples

Success response

JSON format

{
  "HttpStatusCode": 200,
  "RequestId": "E6F0DBDD-5AD****",
  "ErrorMessage": "The project does not exist.",
  "ErrorCode": "Invalid.Tenant.ProjectNotExists",
  "Success": true,
  "Data": [
    {
      "TableName": "dataworks_a.datastudio_tenant_waitres_alarm",
      "Data": "dataworks_a.1234_out",
      "NodeId": 123123
    }
  ]
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.