Package awsl provides helpful functions to work with AWS Lambda.
go get -u github.com/thepkg/awsl
- FromDynamoDBMap - converts data from AWS Lambda Event for DynamoDB to regular map
(from 
map[string]events.DynamoDBAttributeValuetomap[string]interface{}): 
func main() {
	lambda.Start(Handler)
}
func Handler(event events.DynamoDBEvent) {
	for _, record := range event.Records {
		rec := awsl.FromDynamoDBMap(record.Change.NewImage)
		// rec contains map[string]interface{} so it's easier to work with data!
	}
}