But in the output I have three different “supply_point”
and I need to modify it so that it always lists the last line of the selected supply_point
so I guess add something to value_template: ? supply_point==‘A’ is that possible?
No templates for attributes in rest
What you can do is read the whole json in a template sensor attribute and from there on use templating…bit difficult to be 100% sure if this helps … without data and a clear example