'get object from json' issue

[captainzee9999jf]

Hi all

I’m experienced in app inventor 2 but new to thunkable.

I am trying to read a json which is generated from php script on my website when i press a button.

i am using web_api GET and if i put the response directly in to label_text it shows the whole json so it works.

but when i use ‘get property of object’ and ‘get object from json’ from the response, the first response always gives a network request failed error. if i press the button again then it works fine and works everytime after that.

if i restart the app, the first attempt always gives the network request failed error. it then works fine if i press the button again.

any help would be appreciated or if this is a bug

thanks

[kartik14]

Hi, & Welcome to Thunkable Community!

Since you’re an experienced user of AI2, you would soon catch-up with Thunkable too

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Try to set this block to a variable, and then attach the variable to the ‘get property’ block.

See if it works now.
Thanks!

[domhnallohanlon]

Hey @captainzee9999jf, we also have this great tutorial series on APIs which @simran developed last year that will help get you up to speed with Thunkable X too!

[captainzee9999jf]

Thanks guys. Will watch the video and try your suggestion

[captainzee9999jf]

unfortunately the variable idea didnt work, it was still bringing up the network request failed

[kartik14]

Ok, can you make sure your internet is working properly?
Also please provide your device details with Android/iOS version.

Thanks!

[captainzee9999jf]

The internet is definitely working ok. I’m using a samsung s9+ with android version 10.

I did get the weather app working that was shown in the video above but that now crashes the thunkable live app.

Thanks for any help you can give

[captainzee9999jf]

This is the output from the json when I access it through the browser

[jared]

That would be just a single object?
Can you provide a share link?

[eoinparkinson]

The URL returns:
{"name":"Perrin","darkmark":"ZBDVBS"}

Did you try removing the IF statements and just having the set label to darkmark?

Just this block inside of the Web_API1 block:

[captainzee9999jf]

thank you for all your suggestions but i think i have found the issue. I did originally try it without the if statement and still had the same issue.

the web_API ‘set url’ appears to need a variable either joined to the url text. (blank text box will not do it) or the url to be got from a variable. I copied the weather app from the video above and modified my app to match. Then slowly took off parts I didnt need till it started to fail. Removing the variable input caused the issue.

the pic below shows the code working fine

(this test php i created requires no api key or username/password)

i assume there is a bug or some restriction i am unaware of