# 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.