# MongoDB\InsertOneResult::getInsertedCount()

## Definition

`MongoDB\InsertOneResult::getInsertedCount`

Return the number of documents that were inserted.

This method should only be called if the write was acknowledged.

## Return Values

The number of documents that were inserted. This should be `1` for an acknowledged insert operation.

## Errors/Exceptions

`MongoDB\Exception\BadMethodCallException` if this method is called and the write operation used an unacknowledged write concern.