SYNOPSIS

          void
          mongoc_database_set_read_prefs (mongoc_database_t *database,
                                          const mongoc_read_prefs_t *read_prefs);

       This function sets the default read preferences to use on operations performed with database. Collections
       created with mongoc_database_get_collection() <> after this call will inherit these read preferences.

       The  global default is MONGOC_READ_PRIMARY: if the client is connected to a replica set it reads from the
       primary, otherwise it reads from the current MongoDB server.

       Please see the MongoDB website for  a  description  of  Read  Preferences  <https://www.mongodb.com/docs/
       manual/core/read-preference/>.

PARAMETERS

       • database: A mongoc_database_t <>.

       • read_prefs: A mongoc_read_prefs_t <>.

Author

       MongoDB, Inc

Copyright

       2009-present, MongoDB, Inc.

2.2.1                                             Dec 11, 2025                 MONGOC_DATABASE_SET_READ_PREFS(3)