:man_page: mongoc_client_enable_auto_encryption

mongoc_client_enable_auto_encryption()
======================================

Synopsis
--------

.. code-block:: c

   bool
   mongoc_client_enable_auto_encryption (mongoc_client_t *client,
                                         mongoc_auto_encryption_opts_t* opts,
                                         bson_error_t* error);

Enable automatic client side encryption on a :symbol:`mongoc_client_t`. Requires libmongoc to be built with support for Client-Side Field Level Encryption. See the guide for :doc:`Using Client-Side Field Level Encryption <using_client_side_encryption>`.

Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic encryption is not supported for operations on a database or view, and operations that are not bypassed will result in error. To bypass automatic encryption for all operations, bypass automatic encryption with :symbol:`mongoc_auto_encryption_opts_set_bypass_auto_encryption()` in ``opts``.

Automatic encryption requires the authenticated user to have the `listCollections privilege action <https://docs.mongodb.com/manual/reference/command/listCollections/#dbcmd.listCollections>`_.

Enabling automatic encryption reduces the maximum message size and may have a negative performance impact.

Only applies to a single-threaded :symbol:`mongoc_client_t`. To use with client pools, see :symbol:`mongoc_client_pool_enable_auto_encryption()`.

Parameters
----------

* ``client``: A :symbol:`mongoc_client_t`.
* ``opts``: A required :symbol:`mongoc_auto_encryption_opts_t`.
* ``error``: A :symbol:`bson_error_t` which is set on error.

Returns
-------

True on success. False on error. On error, ``error`` is set.

See also
--------

* :symbol:`mongoc_auto_encryption_opts_t`
* :symbol:`mongoc_client_pool_enable_auto_encryption()`
* The guide for :doc:`Using Client-Side Field Level Encryption <using_client_side_encryption>` for libmongoc
* The MongoDB Manual for `Client-Side Field Level Encryption <https://docs.mongodb.com/manual/core/security-client-side-encryption/>`_
