Ubuntu Manpages

PARAMETERS

  • collection: A mongoc_collection_t.
  • command: A bson_t containing the command specification.
  • read_prefs: An optional mongoc_read_prefs_t.
  • opts: A bson_t containing additional options.
  • reply: A maybe-NULL pointer to overwritable storage for a bson_t to contain the results.
  • error: An optional location for a bson_error_t or NULL.

opts may be NULL or a BSON document with additional command options:

  • readConcern: Construct a mongoc_read_concern_t and use mongoc_read_concern_append() to add the read concern to opts. See the example code for mongoc_client_read_command_with_opts(). Read concern requires MongoDB 3.2 or later, otherwise an error is returned.
  • writeConcern: Construct a mongoc_write_concern_t and use mongoc_write_concern_append() to add the write concern to opts. See the example code for mongoc_client_write_command_with_opts().
  • sessionId: First, construct a mongoc_client_session_t with mongoc_client_start_session(). You can begin a transaction with mongoc_client_session_start_transaction(), optionally with a mongoc_transaction_opt_t that overrides the options inherited from collection, and use mongoc_client_session_append() to add the session to opts. See the example code for mongoc_client_session_t.
  • collation: Configure textual comparisons. See Setting Collation Order, and the MongoDB Manual entry on Collation. Collation requires MongoDB 3.2 or later, otherwise an error is returned.
  • serverId: To target a specific server, include an int32 "serverId" field. Obtain the id by calling mongoc_client_select_server(), then mongoc_server_description_id() on its return value.

Consult the MongoDB Manual entry on Database Commands for each command's arguments.

This function is not considered a retryable read operation.

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.

The reply is not parsed for a write concern timeout or write concern error.

See the example code for mongoc_client_read_command_with_opts().

MongoDB, Inc

2017-present, MongoDB, Inc