I haven’t tried the “Cloud Services” / Nucal for Ezlo or Open Weather again yet, however a product manager told me the following.
“NuCAL has re written all their services…hence not functional…
Ezlo cloud team is rewriting all the services again, once they complete it, it will be functional”
I am not sure why they had to break existing working functionality to re-write it again? But who I am to ask. So that probably explains your 400 errors.
So I would say avoid using “Cloud Services” for now in Ezlogic web UI.
Instead just use the HTTP Request node in a Meshbot rules action and send a straight HTTP API command to something like OpenWeather, store all the returned weather data in a string variable, create a LUA script to extract the exact peice of weather data you are interested in, to a second variable (integer variable in my example) and then use that variable in your other Meshbot rules trigger or whatever.
That should still work and can be used as another way to do it without using the “Cloud services” / Nucal stuff.