Send a heartbeat packet to the server for a specified consumer.

Example: 
POST /logstores/{logstoreName}/consumergroups/{consumerGroupName}? type=heartbeat&consumer={consumer}

Request syntax

POST /logstores/<logstoreName>/consumergroups/<consumerGroup>? type=heartbeat&consumer=<consumer> HTTP/1.1
Authorization: <AuthorizationString>
x-log-bodyrawsize: 0
User-Agent: <UserAgent>
x-log-apiversion: 0.6.0
Host: <Project Endpoint>
x-log-signaturemethod: hmac-sha1
Date: <GMT Date>
Content-Type: application/json
Content-MD5: F58544E4D022CC28A93D0B7CC208A5AA
Content-Length: <ContentLength>
<shard ID list>

Request parameters

Attribute name Type  Required or not Description
logstoreName string Yes The Logstore name, which must be unique in the same project.
consumerGroup string Yes Consumer group name, which must be unique under a project.
consumer string Yes Consumer.
{Shard ID List} array Yes  ID list of shards being consumed.
Request header

The HeartBeat interface does not have a specific request header. For details about public request headers of Log Service APIs, see Public request header.

Response header

The HeartBeat interface does not have a specific response header. For details about  public response headers of Log Service APIs, see Public response header.

Response element

If a HeartBeat request is sent successfully, the HTTP status code 200 and the ID list of all shards consumed by the consumer are returned.

Error code

The interface may return the following error codes in addition to Log Service API Common error codes:

HTTP status code ErrorCode ErrorMessage
400 NotExistConsumerWithBody non-exist consumer with non-empty body of heartbeat message
404 ProjectNotExist The Project does not exist : {Project}
404 LogStoreNotExist logstore {logstoreName} dose not exist
404 ConsumerGroupNotExist consumer group not exist
500 InternalServerError Specified Server Error Message
Detailed description

The heartbeat packet is sent only when the connection between the consumer and the server is established.

Example

Request example 
POST /logstores/my-logstore/consumergroups/consumer_group_test? type=heartbeat&consumer=consumer_1 HTTP/1.1
Authorization: LOG <yourAccessKeyId>:<yourSignature>
x-log-bodyrawsize: 0
User-Agent: sls-java-sdk-v-0.6.1
x-log-apiversion: 0.6.0
Host: my-project.cn-shanghai.log.aliyuncs.com
x-log-signaturemethod: hmac-sha1
Date: Sun, 06 May 2018 09:44:10 GMT
Content-Type: application/json
Content-MD5: 8D5162CA104FA7E79FE80FD92BB657FB
Content-Length: 3
Connection: Keep-Alive
[0]
Response example: 
HTTP/1.1 200
Server: nginx/1.12.1
Content-Type: application/json
Content-Length: 5
Connection: close
Access-Control-Allow-Origin: *
Date: Sun, 06 May 2018 09:44:11 GMT
x-log-requestid: 5AEECE6B1FFC0366B2553FB5
[0,1]