Officially supported C++ driver for MongoDB
The MongoDB C++ Driver is an officially supported driver for MongoDB. It is written in C++11. It wraps the MongoDB C Driver.
More information:
Questions tagged [mongo-cxx-driver]
259 questions
2
votes
0 answers
Extract key attributes mongocxx
I am trying to extract only key attributes through mongocxx but using find() and find_one() function .I am not able to pull only key values.
int main(int, char**)
{
mongocxx::instance inst{};
mongocxx::client conn{mongocxx::uri{}};
auto…
Shringa Bais
- 191
- 2
- 11
2
votes
1 answer
move copy and/or assign a mongodb cxx cursor
I'm writing a series of classes that wrap around the mongodb-cxx classes in order to conform them to the storage API of the rest of my application, which is written in Qt.
I don't need the full function set of Mongo, basically just CRUD: create,…
Eyelash
- 1,760
- 2
- 12
- 18
2
votes
1 answer
Upgrading MongoDB C++ Driver to mongocxx-3.1.2
How to upgrade from mongoDB C++ driver from Legacy to mongocxx-3.1.2 easly?
What are the classes in mongocxx-3.1.2 for following?
mongo::BSONElement;
mongo::BSONObj;
mongo::BSONObjBuilder;
Thanks In Advance..
snb
- 633
- 1
- 6
- 13
2
votes
0 answers
Mongodb cxx + Unreal Engine 4 - Crash while iterating over Cursor
I got an error while or after iterating over a mongocxx::cursor after finding some documents in my database.
I am using Windows 10, Unreal Engine 4.16.1 and mongodb cxx 3.1.1.
The database connection is set up correctly, the find function finds my…
Marcel
- 21
- 3
2
votes
1 answer
Mongocxx connection error
I installed mongocxx driver successfully. Now I tried to write a class to connect and query data from database. If I write a query in constructor like this
DBConnection::DBConnection()
{
mongocxx::instance instance{};
mongocxx::uri…
GAVD
- 1,977
- 3
- 22
- 40
2
votes
1 answer
mongoc driver: how to query based on ISOdate?
I have a simple query that worked on mongodb shell:
db.collection.find({"date": {$lt: ISODate("2015-11-03T00:00:00Z")} })
very simple, just trying to find any record that has date before 2015-11-03. Now i want to translate to similar code in mongoc…
dome some
- 479
- 7
- 22
2
votes
1 answer
How to generate Mongodb documents recursively using mongocxx c++ driver?
How to generate Mongodb documents recursively using mongocxx c++ driver?
1. I use mongocxx c++ driver v.3 and c++11.
2. Here is my main.cpp method, which parses hex string and generate mongocxx code like this:
console:$ ./main dissect…
Evgeniy Boytsov
- 214
- 2
- 8
2
votes
0 answers
Escaping part of a regular expression in MongoDB C++ driver
I am using MongoDB 3.4 with the C++ driver (latest version, 3.1.1). I need to query for an item via $regex that starts with the given prefix. Currently, I use the following query document:
auto query = bsoncxx::builder::stream::document()
<<…
s3rvac
- 9,301
- 9
- 46
- 74
2
votes
1 answer
How to use insert_many() method of MongoDB in C++?
I am using a method to store some data in a MongoDB database.
void save_data(std::vector< class_a > list){
using namespace std;
using bsoncxx::builder::stream::document;
using bsoncxx::builder::stream::finalize;
std::vector<…
Shinji Ikari
- 173
- 1
- 12
2
votes
1 answer
How to upload files in MongoDB through mongocxx C++ driver?
I want to use the mongo-cxx-driver to upload files but can't find a way. Tried to use the gridfs feature of mongodb but couldn't integrate. Using current stable version mongodb-cxx-driver (3.1.1).
gridFs throws error when try to store file like…
Rashik
- 93
- 10
2
votes
1 answer
MongoCxx 3.1.0 How can I close connection?
I have program which may have few connections and I need close each one connections.
Help me please.
#include
#include
#include
#include
#include…
YaroslvaV
- 85
- 11
2
votes
1 answer
Is it possible to check if mongoDB is running from cxx driver?
I am wondering if I am able to check that if mongoDB is running from a Cxx driver. The version I am using is 3.0.1.
I tired to dig into mongocxx::client and mongocxx::v_noabi::collection, but I could not find a function/method that seems to do the…
Joe
- 841
- 2
- 10
- 25
2
votes
0 answers
Append binary data into a basic document mongocxx c++
I've done some work with the legacy driver and now I'm upgrading to the new one. But I'm stuck with a problem.
I'm trying to append a b_binary to a basic document, but bytes is const *uint8_t. So, I can't append variable values, just static. Is…
Rodrigo Dias Botelho
- 21
- 2
2
votes
1 answer
bsoncxx::to_json return corrupted string
I'm having difficulties converting a bson document to a json string using bsoncxx.
The bsoncxx::to_json function return an "invalid"/corrupted std::string object..
I can't read the character in it, and it crash when the std::string is…
pascx64
- 904
- 16
- 31
2
votes
0 answers
Mongocxx driver example compilation issue
I have installed mongocxx with the instructions here on Ubuntu 14.04
/usr/local/lib has libbsoncxx.so , libmongoc-1.0.so and libmongocxx.so
I am using cmake to compile the simple example in the instructions
cmake_minimum_required(VERSION…
avrono
- 1,648
- 3
- 19
- 40