Provided by: libmongoc-doc_2.2.1-1_all 

SYNOPSIS
void
mongoc_client_set_write_concern (mongoc_client_t *client,
const mongoc_write_concern_t *write_concern);
Sets the write concern for the client. This only affects future operations, collections, and databases
inheriting from client.
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.
It is a programming error to call this function on a client from a mongoc_client_pool_t <>. For pooled
clients, set the write concern with the MongoDB URI <#mongoc-uri-t-write-concern-options> instead.
PARAMETERS
• client: A mongoc_client_t <>.
• write_concern: A mongoc_write_concern_t <>.
Author
MongoDB, Inc
Copyright
2009-present, MongoDB, Inc.
2.2.1 Dec 11, 2025 MONGOC_CLIENT_SET_WRITE_CONCERN(3)