DOKK / manpages / debian 10 / libmongoc-doc / mongoc_client_command_simple.3.en
MONGOC_CLIENT_COMMAND_SIMPLE(3) MongoDB C Driver MONGOC_CLIENT_COMMAND_SIMPLE(3)

mongoc_client_command_simple - mongoc_client_command_simple()

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().


  • client: A mongoc_client_t.
  • db_name: The name of the database to run the command on.
  • command: A bson_t containing the command specification.
  • read_prefs: An optional mongoc_read_prefs_t. Otherwise, the command uses mode MONGOC_READ_PRIMARY.
  • reply: A location for the resulting document.
  • error: An optional location for a bson_error_t or NULL.

Errors are propagated via the error parameter.

Returns true if successful. Returns false and sets error if there are invalid arguments or a server or network error.

This function does not check the server response for a write concern error or write concern timeout.

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February 23, 2019 1.14.0