Creating a Topic or Deleting Topics in Batches

Function

This API is used to create a topic or delete topics in batches.

URI

POST /v2/{project_id}/instances/{instance_id}/topics

**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.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
action	No	String	This parameter is used to delete topics in batches. If it is not set, a topic will be created. delete: Delete consumer groups in batches.

Request Parameters

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
name	No	String	Topic name. Enter 3 to 64 characters. Use only letters, digits, percent (%), vertical bars (\|), hyphens (-), and underscores (_).
brokers	No	Array of strings	Associated broker. This parameter is mandatory only for RocketMQ 4.8.0 instances.
queue_num	No	Number	Number of queues. The value ranges from 1 to 50.
queues	No	Array of queues objects	Queue. This parameter is mandatory only for RocketMQ 4.8.0 instances.
permission	No	String	Permission. This parameter is mandatory only for RocketMQ 4.8.0 instances. Options: pub (publish) sub (subscribe) all (publish + subscribe)
topics	No	Array of strings	Topic list. This parameter is used when topics are deleted in batches.

**Table 4** queues
Parameter	Mandatory	Type	Description
broker	No	String	Associated brokers.
queue_num	No	Number	Number of queues. The value ranges from 1 to 50.

Response Parameters

Status code: 200

**Table 5** Response body parameters
Parameter	Type	Description
id	String	Topic name.
job_id	String	Job ID for deleting topics.

Example Requests

For RocketMQ 4.8.0 instances: Creating a topic associated with broker-0 with 3 queues

POST https://{endpoint}/v2/{project_id}/instances/{instance_id}/topics

{
  "name" : "topic-test",
  "brokers" : [ "broker-0" ],
  "permission" : "all",
  "queues" : [ {
    "broker" : "broker-0",
    "queue_num" : 3
  } ]
}