GetLastErrorCommand class

getLastError command.

Changed in version 2.6: A new protocol for write operations integrates write concerns with the write operations, eliminating the need for a separate getLastError. Most write methods now return the status of the write operation, including error information. In previous versions, clients typically used the getLastError in combination with a write operation to verify that the write succeeded.

Returns the error status of the preceding write operation on the current connection.

The command accepts the following fields:

db Db
- The database on which the previous write operation ha been executed.
writeConcern WriteConcern
- When running with replication, this is the number of servers to replicate to before returning. A w value of 1 indicates the primary only. A w value of 2 includes the primary and at least one secondary, etc. In place of a number, you may also set w to majority to indicate that the command should wait until the latest write propagates to a majority of the voting replica set members. If using w, you should also use wtimeout. Specifying a value for w without also providing a wtimeout may cause getLastError to block indefinitely.
getLastErrorOptions GetLastErrorOptions - Optional
- a set of optional values for the command

Properties