// GetItem finds a returns a single item from a dynamodb table.
// It returns an element and an error if any.
// If no element is found, will return nil without an error
func GetItem(id string, dest interface{}) error {
	tableName := "table-name"

	// create get operation information
	item := &dynamodb.GetItemInput{
		TableName: aws.String(tableName),
		Key: map[string]*dynamodb.AttributeValue{
			"ID": {S: aws.String(id)},
		},
	}

	// execute GetItem operation
	result, err := DynamoDB().GetItem(item)
	if err != nil {
		return err
	}

	return dynamodbattribute.UnmarshalMap(result.Item, &dest)
}

type Product struct {
    ID string `json:"id"`
    Name string `json:"name"`
}

func main() err {
    p := Product{}
    if err := GetItem("p-id", &p); err != nil {
        return err
    }
    return nil
}