I've intialized 'jsonArray' as a string. My bad!!
it's false. Not a list!!
your script is working fine with me too (i tried it as a separate project). But, I am working with other screens too. So, I thought i might give my script a shot.
Check the content of your responseContent, if that looks like a stringified json array, then see what happens when you use the decode block on it. If you are not getting back a stringified array, then you need to look at your script.
1 Like
A great thanks to you @TIMAI2 
I just tried to decoded the json string again (like twice), then it was a LIST! and I plotted the data. 
1 Like
I tried to plot again today. It's showing this error:
Data column for axis #0 cannot be type string
This is my block.
Why are you using jsontextdecode block twice ?
Haven't you already added the header row in the script ?
As I have already said before, the first decoded text looks like a json text, but it seems it's not.
The response content is in a string format, so is the firstly decode jsonString. Only the jsonArray (jsonString after being decoded again) is in the list format.
I was able to plot it yesterday, when I was only using the 7 data... Now that I've added 30 data, It says the above mentioned error.
Yes, I have.
Then do not add it again. This will put strings in the plot data when expecting numbers
If I'm not adding it again, it says the decoded json is a string and not a list.
Do I have to add the little procedure that you've added before?
I was talking about the header row you are adding in the blocks!
You should not have to jsontextdecode twice to get a list, if you are returning a stringified JSON array correctly, as shown by my example.
1 Like
yah, i realized that my json string was stringified twice in my script (I didn't notice), hence I have to decode it twice. Now it's fine with one block.
And I used the little procedure you have suggested before. And it PLOTS!!
Thank you so much @TIMAI2. Thank you for your patience & timely help. May God bless 
1 Like