SYNOPSIS

          bool
          mongoc_client_set_appname (mongoc_client_t *client, const char *appname)

       Sets the application name for this client. This string, along with other internal driver details, is sent
       to  the server as part of the initial connection handshake ("hello" <https://www.mongodb.com/docs/manual/
       reference/command/hello/>).

       appname is copied, and doesn't have to remain valid after the call to mongoc_client_set_appname().

       This function will log an error and return false in the following cases:

       • appname is longer than MONGOC_HANDSHAKE_APPNAME_MAX

       • client has already initiated a handshake

       • client is from a mongoc_client_pool_t <>

PARAMETERS

       • client: A mongoc_client_t <>.

       • appname: The application name, of length at most MONGOC_HANDSHAKE_APPNAME_MAX.

RETURNS

       true if the appname is set successfully. Otherwise, false.

Author

       MongoDB, Inc

Copyright

       2009-present, MongoDB, Inc.

2.2.1                                             Dec 11, 2025                      MONGOC_CLIENT_SET_APPNAME(3)