日志服务：C++ SDK快速入门

LOGClient是日志服务的C++客户端，用于管理Project、Logstore等日志服务资源。使用C++ SDK发起日志服务请求，您需要初始化一个Client实例。示例代码如下所示：

#include "client.h"
#include "common.h"
#include <string>
#include <iostream>
#include <unistd.h>
using namespace aliyun_log_sdk_v6;
using namespace std;
int main(int argc,char ** argv)
{
    //日志服务的域名。更多信息，请参见服务入口。此处以杭州为例，其它地域请根据实际情况填写。
    string endpoint = "cn-hangzhou.log.aliyuncs.com";
    //阿里云访问密钥AccessKey ID。更多信息，请参见访问密钥。阿里云主账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维。
    string accessKeyId = "";
    //阿里云访问密钥AccessKey Secret。
    string accessKey = "";
    //Project名称。
    string project = "";
    //Logstore名称。
    string logstore = "";
    //日志主题。
    string topic = "";
    //日志服务Client。
    LOGClient * ptr = new LOGClient(endpoint,accessKeyId,accessKey,LOG_REQUEST_TIMEOUT,"127.0.0.1",false);
    //构造日志数据。
    vector<LogItem> logGroup;
    for (int i = 0;i < 1;++i)
    {
        logGroup.push_back(LogItem());
        LogItem & item =  logGroup.back();
        item.timestamp = time(NULL) ;
        item.source="127.0.0.1";
        item.topic=topic;
        item.data.push_back(make_pair<string,string>("status","200"));
        item.data.push_back(make_pair<string,string>("latency","126"));
    }
    try{
        //写入日志。
        ptr -> DeleteConsumerGroup(project,logstore,"test-consumer-group");
        uint32_t shardId = 2;
        int32_t beginTime =  time(NULL);
        ptr -> PostLogStoreLogs(project,logstore,topic,logGroup);
        sleep(1);
        ptr -> PostLogStoreLogs(project,logstore,topic,logGroup);
        sleep(1);
        int32_t endTime = time(NULL);
        ptr -> PostLogStoreLogs(project,logstore,topic,logGroup);
        sleep(1);
        ptr -> PostLogStoreLogs(project,logstore,topic,logGroup);
        sleep(1);
        //查询日志。
        GetCursorResponse beginCursorResp = ptr->GetCursor(project, logstore, shardId, beginTime);
        GetCursorResponse endCursorResp = ptr->GetCursor(project, logstore, shardId, endTime);
        GetBatchLogResponse getLogResp = ptr->GetBatchLog(project, logstore, shardId, 1000, beginCursorResp.result);
        cout << getLogResp.result.logGroups.size() << "\t" << getLogResp.result.logGroupCount << endl;
        getLogResp = ptr->GetBatchLog(project, logstore, 2, 1000, beginCursorResp.result, endCursorResp.result);
        cout << getLogResp.result.logGroups.size() << "\t" << getLogResp.result.logGroupCount << endl;

        ListConsumerGroupResponse lrs = ptr -> ListConsumerGroup(project, logstore);
        for(int i = 0; i < lrs.consumerGroups.size(); ++i)
            cout<<lrs.consumerGroups[i].GetConsumerGroupName()<<", " <<lrs.consumerGroups[i].GetTimeoutInSec()<<", " <<lrs.consumerGroups[i].GetInOrder()<<endl;
        ptr->UpdateCheckpoint(project, logstore, "hahhah", 0, "V0hBVFRIRlVDSw==");
        ListCheckpointResponse lcps = ptr -> ListCheckpoint(project, logstore, "hahhah");
        for(int i =0; i < lcps.consumerGroupCheckpoints.size(); ++i)
        {
            cout<<lcps.consumerGroupCheckpoints[i].GetShard() <<", " << lcps.consumerGroupCheckpoints[i].GetCheckpoint()<<", "<<lcps.consumerGroupCheckpoints[i].GetUpdateTime()<<endl;
        }
        while(true){
            HeartbeatResponse resp = ptr->ConsumerGroupHeartbeat(project, logstore, "hahhah", "cc1", std::vector<uint32_t>());
            cout<<"cc1, heartbeat: ";
            for(std::vector<uint32_t>::const_iterator it = resp.shards.begin(); it != resp.shards.end(); ++it)
                cout<<*it<<", ";
            cout<<endl;
            resp = ptr->ConsumerGroupHeartbeat(project, logstore, "hahhah", "cc2", std::vector<uint32_t>());
            cout<<"cc2, heartbeat: ";
            for(std::vector<uint32_t>::const_iterator it = resp.shards.begin(); it != resp.shards.end(); ++it)
                cout<<*it<<", ";
            cout<<endl;
            usleep(2 * 1000 * 1000);
        }
    }
    catch(LOGException & e)
    {
        cout<<e.GetErrorCode()<<":"<<e.GetMessage()<<endl;
    }
    delete ptr;
}

更多示例代码，请参见Aliyun Log C++ SDK。