mongoc_client_enable_auto_encryption - Man Page

Synopsis

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

Enable automatic In-Use Encryption on a mongoc_client_t <>. Requires libmongoc to be built with support for In-Use Encryption. See In-Use Encryption <https://www.mongodb.com/docs/languages/c/c-driver/current/libmongoc/guides/in-use-encryption/> for instructions to enable In-Use Encryption in libmongoc.

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 mongoc_auto_encryption_opts_set_bypass_auto_encryption() <> in opts.

Automatic encryption requires the authenticated user to have the listCollections privilege action <https://www.mongodb.com/docs/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 mongoc_client_t <>. To use with client pools, see mongoc_client_pool_enable_auto_encryption() <>.

Parameters

Returns

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

See also:

mongoc_auto_encryption_opts_t <>
mongoc_client_pool_enable_auto_encryption() <>
In-Use Encryption <https://www.mongodb.com/docs/languages/c/c-driver/current/libmongoc/guides/in-use-encryption/> for libmongoc
The MongoDB Manual for Client-Side Field Level Encryption <https://www.mongodb.com/docs/manual/core/security-client-side-encryption/>
The MongoDB Manual for Queryable Encryption <https://www.mongodb.com/docs/manual/core/queryable-encryption/>

Author

MongoDB, Inc

Info

Jan 27, 2026 1.30.6 libmongoc