Querying the Consumer List

Function

This API is used to query the consumer list of a consumer group.

URI

GET /v2/rocketmq/{project_id}/instances/{instance_id}/groups/{group}/clients

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID. For details, 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
group	Yes	String	Definition Consumer group name. Constraints N/A Range N/A Default Value N/A

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
limit	No	Integer	Definition Number of records to query. Constraints N/A Range 1–50 Default Value N/A
offset	No	Integer	Definition Offset, which is the position where the query starts. The value must be greater than or equal to 0. Constraints N/A Range N/A Default Value N/A
is_detail	No	Boolean	Definition Indicates whether to query the consumer details. The value true indicates that the detailed consumer list is queried. Otherwise, a simple consumer list is queried. Constraints N/A Range N/A Default Value N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
group_name	String	Definition Consumer group name. Range N/A
online	Boolean	Definition Whether the consumer group is online. Range true: Yes false: No
subscription_consistency	Boolean	Definition Whether subscriptions are consistent. Range true: Yes false: No
total	Integer	Definition Total number of consumers. Range N/A
next_offset	Integer	Definition Offset of the next page. Range N/A
previous_offset	Integer	Definition Offset of the previous page. Range N/A
clients	Array of ClientData objects	Definition Consumer subscription detail list.

**Table 4** ClientData
Parameter	Type	Description
language	String	Definition Client language. Range N/A
version	String	Definition Client version. Range N/A
client_id	String	Definition Client ID. Range N/A
client_addr	String	Definition Client address. Range N/A
subscriptions	Array of Subscription objects	Definition Subscription list.

**Table 5** Subscription
Parameter	Type	Description
topic	String	Definition Name of the subscribed topic. Range N/A
type	String	Definition Subscription type. Range TAG: tag-based subscription. SQL92: message-attribute-based subscription.
expression	String	Subscription tag.

Example Requests

Querying a list of 10 consumers of a specified consumer group from offset=0

GET https://{endpoint}/v2/rocketmq/{project_id}/instances/{instance_id}/groups/{group}/clients?offset=0&limit=10&is_detail=true

Example Responses

Status code: 200

Consumer subscription details queried.

{
  "group_name" : "test",
  "online" : true,
  "subscription_consistency" : true,
  "total" : 1,
  "next_offset" : -1,
  "previous_offset" : -1,
  "clients" : [ {
    "client_id" : "192.168.0.1@consumer1",
    "language" : "JAVA",
    "version" : "V4_8_0",
    "client_addr" : "192.168.0.1:65233",
    "subscriptions" : [ {
      "topic" : "topicA",
      "type" : "TAG",
      "expression" : "tagA"
    } ]
  } ]
}