# What have done
1) JSON path : works well, but not useful
- First, I just used API results through ‘JSON path’ (ie. $.created_at)
- It shows “yyyy-MM-dd HH:mm:ss” format, so not useful
2) 'JSON path' result 'String' → custom function → datetime format : grey screen
- I made simple custom function which convert 'string to datetime' and it works well in 'test function'
- But when i input the json result as a variable it returns grey screen like below.
3) JSON → Datatype : grey screen
- Then I parsed Json to ‘data type’ and used ‘Data Structure Field’.
- It didn’t work. It shows only grey area. (All the grey screens are same)
- Not datetime type data only. All the data using this method had the same result.
- Not ‘generating dynamic children’ only. When I took it to normal query, it didn’t work too.
4) JSON Predefined Path ‘all’ → JSON path : grey screen too.
- Some posts (Dynamic children from API call going weird (flutterflow.io)) recommend to use predefined path, but not working. There was grey area too.
Can someone please tell me what I did wrong and what I should do? I would appreciate it. Thanks in advance.