in lambda/src/main/java/com/amazon/example/service/AbstractService.java [62:71]
protected GetItemRequest getRequest(String userId) {
Map<String, AttributeValue> key = new HashMap<>();
key.put(USER_ID_COL, AttributeValue.builder().s(userId).build());
return GetItemRequest.builder()
.tableName(getTableName())
.key(key)
.attributesToGet(USER_ID_COL, USER_USERNAME_COL, USER_FIRSTNAME_COL, USER_LASTNAME_COL, USER_AGE_COL)
.build();
}