Mongo-Client-Source.cpp

/* simple mongo 2.6.x client test
mongo server https://goo.gl/x1PJlI
mongo client libraries https://goo.gl/Ggpdcd
requiers packages for x64
Install-Package boost -Version 1.55.0.16 
Install-Package boost_system-vc110 -Version 1.55.0.16 
Install-Package boost_date_time-vc110 -Version 1.55.0.16 
Install-Package boost_thread-vc110 -Version 1.55.0.16
Install-Package boost_chrono-vc110 -Version 1.55.0.16 
Install-Package boost_filesystem-vc110 -Version 1.55.0.16
*/
#define _CRT_SECURE_NO_WARNINGS
#define STATIC_LIBMONGOCLIENT
#include <iostream>
#include <string>

#include <mongo/bson/bson.h>
#include <mongo/client/dbclient.h>
#include <thread>
using namespace std;

int main(){
	try {
		mongo::client::initialize();

		mongo::DBClientConnection connection;
		connection.connect("localhost");

		mongo::BSONObjBuilder vasiasBuilder;
		vasiasBuilder.append("name", "vasya");
		vasiasBuilder.append("age", "1");
		auto vasia = vasiasBuilder.obj();
		cout << vasia.jsonString() << endl;
	
		connection.insert("test.persons", vasia);

		auto annsBuilder = mongo::BSONObjBuilder();
		annsBuilder.append("name", "ann");
		annsBuilder.append("age", "5");
		auto ann = annsBuilder.obj();
		cout << ann.jsonString() << endl;
	
		connection.insert("test.persons", ann);


		this_thread::sleep_for(chrono::milliseconds(1000));

		cout << "count:" << connection.count("test.persons") << endl;

		auto cursor = connection.query("test.persons", mongo::fromjson("{'age': { '$gt' : '1'}  }")); //$gt == больше, остальные ключевые классификаторы тут https://docs.mongodb.org/manual/reference/operator/query-comparison/
	
		cout << "found objects:" << endl;
		while (cursor->more()) {
		   cout << cursor->next().toString() << endl;
		}

		connection.remove("test.persons", mongo::fromjson("{}"));


    } catch( const exception &e ) {
        cout << "caught " << e.what() << endl;
    }
	cin.get();
	return 0;
}