# mongoc_database_set_write_concern()

## Synopsis

    void
    mongoc_database_set_write_concern (mongoc_database_t *database,
                                       const mongoc_write_concern_t *write_concern);

This function sets the write concern to use on operations performed with `database`. Collections created with mongoc_database_get_collection() after this call will inherit this write concern.

The default write concern is MONGOC_WRITE_CONCERN_W_DEFAULT: the driver blocks awaiting basic acknowledgement of write operations from MongoDB. This is the correct write concern for the great majority of applications.

## Parameters

- `database`: A mongoc_database_t.

- `write_concern`: A mongoc_write_concern_t.