using bulk api?

[Mrliu88888888]

I want to know how to use the bulk interface,

[Mrliu88888888]

This is how my bulk function passes parameters，

void main()
{
/*
...
*/

Json::Object j;
string s = "{ "index": { "_index": "website" }}\n{ "event": "User logged in" }";
cout << s.c_str() << endl;
es.bulk(s.c_str(), j);
}