# mongoc_client_set_write_concern()

## Synopsis

    void
    mongoc_client_set_write_concern (mongoc_client_t              *client,
                                     const mongoc_write_concern_t *write_concern);

Sets the default write concern for the client. This only affects future operations, collections, and databases inheriting from client.

## Parameters

client | A mongoc_client_t.
write_concern | A mongoc_write_concern_t.