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chenjunjie 719d8b18de RocketMQ API 20250723 version

Reviewed-by: Ziuzko, Stanislav <stanislav.ziuzko@t-systems.com>
Co-authored-by: chenjunjie <chenjunjie@huawei.com>
Co-committed-by: chenjunjie <chenjunjie@huawei.com>

2026-03-18 20:25:09 +00:00

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Modifying a Topic

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	Definition Project ID. For details about how to obtain it, see Obtaining a Project ID. Constraints N/A Range N/A Default Value N/A
instance_id	Yes	String	Definition Instance ID. You can call the API for querying all instances to obtain the instance ID. The instance ID is in the response body. Constraints N/A Range N/A Default Value N/A
topic	Yes	String	Definition Topic name. Constraints N/A Range N/A Default Value N/A

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
topic_desc	No	String	Definition: Topic description. Constraints: N/A Range: N/A Default Value: N/A

Response Parameters

Status code: 204

The topic is modified.

None

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}

{
  "topic_desc" : "topic_description"
}

Example Responses

None

Status Codes

Status Code	Description
204	The topic is modified.

Error Codes

See Error Codes.

Parent topic: Topic Management

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