@amiruuu empty screen on your API request screen means that DS has no value. SO you need either to set the default value or update the DS with some value to be able to see it in the response.
Hi @Oleksii-QA , what I am trying to do is use this HTTP API to switch on an LED for my ESP32, before this I got this error {“error”:{“message”:“No datastream setup for that pin.”}} because I use v2 instead of d2 because of my datastream setup as digital datastream, but now I have use the proper API that @John93 mention but I still can not turn on my LED, it looks like there is no communication between my HTTP API and ESP32.
thank you @John93 for your explanation, it helps me a lot to understand how it works, but still after I change it accordingly I still can not communicate with my ESP32.
I never use digital datastreams, so have no experience of using the REST API that way, but if it were me, I’d stick to testing with virtual pins - at least to begin with.
It’s normal for the web browser screen to be blank after an update API call.