Manage Flink Variables with CreateVariable API - Realtime Compute for Apache Flink - Alibaba Cloud - Realtime Compute for Apache Flink

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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

stream:CreateVariable

create

*All Resource

*

None

Request syntax

POST /api/v2/namespaces/{namespace}/variables HTTP/1.1

Path Parameters

Parameter	Type	Required	Description	Example
namespace	string	Yes	The name of the namespace.	default-namespace

Request parameters

Parameter	Type	Required	Description	Example
workspace	string	Yes	The workspace ID.	a14bda1c4a****
body	Variable	Yes	The parameter that is used to create the variable.

Response elements

Element	Type	Description	Example
	object	The response parameters.
requestId	string	The request ID.	CBC799F0-ABCD-1D30-8A4F-882ED4DD****
success	boolean	Indicates whether the request was successful.	true
httpCode	integer	The value was fixed to 200.	200
errorCode	string	If the value of success was false, an error code was returned. If the value of success was true, a null value was returned.	""
errorMessage	string	If the value of success was false, an error message was returned. If the value of success was true, a null value was returned.	""
data	Variable	If the value of success was true, the variable that you created was returned. If the value of success was false, a null value was returned.

Examples

Success response

JSON format

{
  "requestId": "CBC799F0-ABCD-1D30-8A4F-882ED4DD****",
  "success": true,
  "httpCode": 200,
  "errorCode": "\"\"",
  "errorMessage": "\"\"",
  "data": {
    "kind": "Plain",
    "name": "variableName",
    "value": "variableValue",
    "description": "This is a variable description"
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.