Modifying a Topic

Updated on 2025-04-01 GMT+08:00

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Function

This API is used to modify a topic.

URI

PUT /v2/{project_id}/instances/{instance_id}/topics/{topic}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID.
instance_id	Yes	String	Instance ID.
topic	Yes	String	Topic name.

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
read_queue_num	No	Number	Total number of read queues.
write_queue_num	No	Number	Total number of write queues.
permission	No	String	Permissions.

Response Parameters

Status code: 204

**Table 3** Response body parameters
Parameter	Type	Description
-	AnyType	The operation is successful.

Example Requests

Changing a specified topic's total read queues to 3 and total write queues to 3

PUT https://{endpoint}/v2/{project_id}/instances/{instance_id}/topics/{topic}

{
  "read_queue_num" : 3,
  "write_queue_num" : 3,
  "permission" : "all"
}

Example Responses

None

Status Codes

Status Code	Description
204	The operation is successful.

Error Codes

See Error Codes.

Parent Topic: Topic Management

Previous topic: Querying a Topic

Next topic: Querying the Topic Consumer Group List

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