Mongodb is a high-performance, open source, schema-free document-oriented data store.

this library provides an alternative c language driver, focusing on stability, ease of use, striving to make the most common use cases as convenient as possible.

among its features are:

* well documented, easy, clean and stable api.
* support for asynchronous operation.
* replicaset support, with support for automatic reconnecting and
discovery.
* safe-mode support, to optionally enable extra safety checks on
writes.