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
3
votes
1 answer
mongocxx how to build a document from a view?
auto cursor = db["friend"].find({});
for (auto &&docView : cursor) {
bsoncxx::builder::basic::document document1;
document1.append(docView); // This line will be an error
document1.append(kvp("surl", "http://xxx"));
…
H.He
- 55
- 5
3
votes
1 answer
Iterate through a mongocxx query to get each key and value
I am querying a collection with the following code:
bsoncxx::stdx::optional query_result =
collection.find_one(bsoncxx::builder::stream::document{} << "_tablename" << tableToSearch.toUtf8().constData() << "rowuuid" <<…
QLands
- 2,424
- 5
- 30
- 50
3
votes
2 answers
Installing Mongo c and c++ drivers in Docker
I'm attempting to install the mongocxx driver in a Docker container, and step number one is to install the mongo-c driver using package manager. My slimmed down Dockerfile:
FROM phusion/baseimage:latest
RUN apt-get install -y libmongoc-1.0-0
After…
Nate Roiger
- 325
- 2
- 7
3
votes
2 answers
How to send regular expression via in a mongoDB query using mongocxx?
Following is a piece of code where I am trying to query mongodb using mongocxx driver.
/*Code for finding all that match the filter */
mongocxx::cursor cursor = collection.find(
document{} << "Vehicle_Registration" << vReg
<< "Vehicle_Make"…
Programmer
- 31
- 2
3
votes
1 answer
g++ cannot static link libmongcxx(r3.0.2) but dynamic link works
I use the example code from mongodb site to show the problem here. OS: ArchLiux, c++ is a link to g++
[dean@dell_xps_13 ~]$ c++ --version c++ (GCC) 6.2.1 20160830 Copyright
(C) 2016 Free Software Foundation, Inc. This is free software; see the
…
Dean Chen
- 3,800
- 8
- 45
- 70
3
votes
1 answer
mongocxx cursor and rvalue references
I was looking to the mongocxx query exemples and I don't get whats the point of using auto&& over auto& here.
auto cursor = db["restaurants"].find({}, opts);
for (auto&& doc : cursor) {
std::cout << bsoncxx::to_json(doc) <<…
MokaT
- 1,416
- 16
- 37
3
votes
1 answer
Insert JSON into Mongocxx
I'm currently trying to insert a JSON file into my mongoDB. I've already seen that this was solved by making use of the mongo::BSONObj in the past... But this doesnt seem to be an option since they released the new mongocxx driver for c++11. This is…
cylex
- 45
- 1
- 6
3
votes
1 answer
How to set up project with mongodb-cxx-driver in Visual Studio
I have successfully built the new libmongo-cxx-driver on Windows with Visual Studio, but I fail understanding how I can set up a project in VS 2015 to link to it. I would appreciate some help on that.
MatsB
- 91
- 1
- 6
3
votes
1 answer
make mongo-cxx-driver cannot find includes
I've been trying to compile the mongo-cxx-driver for C++11 on OSX 10.10, but I have some trouble with it.
Both libbson and mongo-c-driver were built and installed successfully, the libraries to to /usr/local/lib, and the headers to…
IndyStef
- 747
- 1
- 6
- 15
3
votes
1 answer
MongoDB C++ Driver 3.0 get document in string and avoid json
I am trying to get double type data from the database as the documentation says:
auto cursor = db["collection"].find({}, opts);
for (auto&& doc : cursor) {
std::cout << bsoncxx::to_json(doc) << std::endl;
}
But I want to avoid converting doc…
debihiga
- 246
- 2
- 10
3
votes
1 answer
MongoDB 3.2 c++ drivers , using $exists
bsoncxx::builder::stream::document search_builder;
mongocxx::options::find img_find; // This speeds up the queries
search_builder_images.clear();
search_builder_images << "_id" << "abc" << "data" << open_document <<"$exists" << true <<…
Its Programmer
- 81
- 3
3
votes
1 answer
Adding a BSON Array to a MongoDB 3.2 document and extracting the values back ( MongoCXX 3.2 ) ( C++ 11)
// The document I want to add data to and extract it back from c++
bsoncxx::builder::stream::document data_builder,
// I want to try and save this array in my document , as I want to populate it later
…
Its Programmer
- 81
- 3
2
votes
1 answer
Mongocxx change_stream callback
I have a process that is monitoring a mongo db and needs to be notified when there is a change to a table.
It seems like the most logical way to handle this is via a change_stream with a callback that executes when something has changed - that is,…
John D Murphy
- 21
- 2
2
votes
0 answers
Getting "could not start SASLPrep for password: generic server error" error when trying to insert/find documents in mongoDB in C++
I have a mongDB running in my VM (Ubuntu) in access control mode. I created an admin user with this role:
roles: [ { role: "userAdminAnyDatabase", db: "admin" }, "readWriteAnyDatabase" ]
I installed the mongoDB driver for C++ and wrote a…
Shavit Talman
- 21
- 1
2
votes
1 answer
How to use mongocxx with inline namespaces and PIMPL idiom?
I want to write an interface to mongocxx using the PIMPL idiom. The interface itself works but I did something wrong with mongocxx inline namespaces because writing tests is not working.
This is a minimal example:
MongoInterface.h:
#pragma…
gk017
- 87
- 1
- 10