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
7
votes
2 answers
New C++ Mongo driver: how to see type and how to get string value
I've got two questions that I cannot find an answer for in the tutorial.
I get a document and then an element from the doc like this:
bsoncxx::document::element e = doc["id"];
if (!e || e.type() != bsoncxx::type::k_int32) return…
Xauxatz
- 143
- 2
- 9
6
votes
1 answer
mongoDB c++11 Driver get ID of inserted Document
I'm working with new c++11 mongoDB driver ( NOT the Legacy Driver ).
I'm trying to get the 'id' of a document in mongoDB after I inserted a new document. This ID is in the returned value 'retVal3'.
struct…
Cutton Eye
- 3,207
- 3
- 20
- 39
5
votes
3 answers
Error while loading shared libraries: libbsoncxx.so._noabi: cannot open shared object file: No such file or directory
I installed the mongocxx driver, as shown by http://mongodb.github.io/mongo-cxx-driver/mongocxx-v3/installation/ and
when I test driver everything looks fine, but if change a little code I get error while loading shared libraries:…
Adam
- 61
- 1
- 3
5
votes
3 answers
Mongodb c++ regex query
How to query MongoDB database using regex in c++.
mongo-cxx-driver-r3.1.1
hear is include
#include
#include
#include
#include
#include
#include…
Sam Jamali
- 77
- 4
5
votes
1 answer
MongoDB C++, How to add ISODate value when inserting
This is about the new MongoDB C++ Driver (not the legacy one). I can insert a document this way:
value Value = document{}
<<"Key" <<"Value"
<
Dee
- 7,455
- 6
- 36
- 70
5
votes
1 answer
when to use finalize in mongodb cxx r3.0.2 driver
I am confused, in code snippets of online doc, it shows the usage of finalize when calling update_many method, like so:
mongocxx::stdx::optional result =
collection.update_many(
document{} << "i" << open_document <<
…
Dean Chen
- 3,800
- 8
- 45
- 70
5
votes
1 answer
How to save mongodb array into vector using c++ driver?
For example, if I do this in shell
> db.numbers.save( { name: "fibonacci", arr: [0, 1, 1, 2, 3, 5, 8, 13, 21] } )
Then i want to get arr in my c++ program.
After i got BSONObj i can get name with
std::string name = p.getStringField("name");
where…
Stals
- 1,543
- 4
- 27
- 52
4
votes
0 answers
Mongocxx driver fails to connect using X.509 certificate authentication
I am tring to implement X.509 certificate authentication for Mongo using C++ driver. The driver is 3.4.0(custom build with enabled OpenSSL), C driver is 1.13.0, running on Debian 9, the server is Mongo 3.2
Code to connect:
…
task_struct
- 41
- 3
4
votes
1 answer
Converting a BSON document containing an array to JSON, removes the array from the converted JSON (C++)
I have a document that looks like this:
{
"_id" : ObjectId("5bd37e0128f41363c0006ac2"),
"source" : "Forge",
"data" : [
{
"symbol" : "EURUSD",
"bid" : 1.14021,
"ask" : 1.14024,
…
Zeiko
- 41
- 4
4
votes
1 answer
Building mongo-cxx-driver using CMake ExternalProject_Add
I am trying to build mongo-cxx-driver in a CMake based project. This project is supposed to build on Windows, macOS and in an ubuntu container and I want to ensure that my software on all these platforms will use the same driver version so I cannot…
Pejman
- 1,328
- 1
- 18
- 26
4
votes
1 answer
Linking errors when building c++ project using mongo-cxx-driver
I am currently developing a C++ application which requires the use of the mongo-cxx-driver for accessing a MongoDB instance. I attempted a couple of methods of installation, and am met with the same linker issues each time.
Initially, I attempted to…
datatype_void
- 433
- 5
- 23
4
votes
1 answer
MongoDB C++: Is mongocxx::pool thread safe?
Do I have to manually lock mongocxx::pool while acquiring a connection?
i.e Is this safe? (example copied from Mongo website)
mongocxx::instance instance{};
mongocxx::pool pool {mongocxx::uri{}};
using mongocxx::pool::entry =…
xcorat
- 1,434
- 2
- 17
- 34
4
votes
1 answer
How to retrieve the value of a specific field using mongo cxx driver
Say, I inserted the following document using the mongo command line or shell:
db.Users.insert(
{
"user info":{
"user name" : "Joe",
"password" : "!@#%$%" ,
"Facebook" : "aaa",
"Google"…
Joe
- 841
- 2
- 10
- 25
3
votes
0 answers
bsoncxx:to_json causes double value to truncate
When I'm using bsoncxx::to_json function to convert prepared bsoncxx document to json all float/double values are truncated to 5 digits precision. Please check following code:
#include
#include
#include…
Andrew Skripnikov
- 41
- 3
3
votes
1 answer
Run aggregrate query in mongocxx as a string literal
In the mongocxx API, Collection.aggregate() expects a pipeline object in order to run an aggregate pipeline query. This means constructing the query by using the Pipeline class. Such as:
mongocxx::pipeline p{};
…
anon9928175234
- 105
- 1
- 8