How to get a value on JSON

Good. I need to pick up the value of latitude and longitude and with these values add a marker on the screen.

what do I do to get the value that’s in these text box.

The value is contained in the text box2 and text box3
want to pick up these two arrow values

you might want to use the lookup in pairs block
How does the lookup in pairs block work?
also use Do it to debug your blocks, see tip 4 here App Inventor: How to Learn | Pura Vida Apps
and there are also exensions available which might make things easier with JSON, see the extensions directory here App Inventor Extensions | Pura Vida Apps


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