mongoc_client_command_simple()¶
Synopsis¶
bool
mongoc_client_command_simple (mongoc_client_t *client,
const char *db_name,
const bson_t *command,
const mongoc_read_prefs_t *read_prefs,
bson_t *reply,
bson_error_t *error);
This is a simplified interface to mongoc_client_command(). It returns the first document from the result cursor into reply
. The client's read preference, read concern, and write concern are not applied to the command.
Warning
reply
is always set, and should be released with bson_destroy()
.
Parameters¶
client
: A mongoc_client_t.db_name
: The name of the database to run the command on.command
: Abson_t
containing the command specification.read_prefs
: An optional mongoc_read_prefs_t. Otherwise, the command uses modeMONGOC_READ_PRIMARY
.reply
: A location for the resulting document.error
: An optional location for a bson_error_t orNULL
.
Errors¶
Errors are propagated via the error
parameter.
Returns¶
true
if successful; otherwise false
and error
is set.
This function does not check the server response for a write concern error or write concern timeout.