Querying Topics of a Specified Consumer Group

Function

This API is used to query topics of a specified consumer group.

Calling Method

For details, see Calling APIs.

URI

GET /v2/{engine}/{project_id}/instances/{instance_id}/groups/{group}/topics

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
engine	Yes	String	Engine.
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID.
instance_id	Yes	String	Instance ID.
group	Yes	String	Consumer group ID.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
offset	No	Integer	Offset, which is the position where the query starts. The value must be greater than or equal to 0.
limit	No	Integer	Maximum number of topics returned in the current query. The default value is 10. The value ranges from 1 to 50.
sort_key	No	String	Sorting rule: topic: topic name partition: number of partitions messages (default): number of messages
sort_dir	No	String	Sort in: asc: ascending order desc (default): descending order
topic	No	String	Topic name.

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
topics	Array of GroupTopicEntity objects	Consumer group topic.
total	Integer	Total.

**Table 4** GroupTopicEntity
Parameter	Type	Description
topic	String	Topic name.
partitions	Integer	Partition.
lag	Integer	Number of stacked messages.

Example Requests

GET https://{endpoint}/v2/{engine}/{project_id}/instances/{instance_id}/groups/{group}/topics

Example Responses

Status code: 200

Successful

{
  "topics" : [ {
    "topic" : "topic-1",
    "partitions" : 1,
    "lag" : 0
  }, {
    "topic" : "topic-2",
    "partitions" : 2,
    "lag" : 10
  } ],
  "total" : 2
}