Last Valid Value

[firesgc]

Hello!

is it possible to return the last valid value in the REST Api when the detection fails? At the moment it's just an empty string.
If you don't want to break compatibility, maybe you could add a new field called "LastValidValue"?

Thanks a lot!

current return value:
{
"main":
{
"value": "",
"raw": "20148.N0",
"error": "Neg. Rate - Read: - Raw: 20148.N0 - Pre: 20148.46 ",
"rate": "",
"timestamp": "2022-10-08T14:31:32"
}
}

[caco3]

isn't "Pre" what you are looking for?

[firesgc]

Yes, but it's in an error string, and I'm not sure it's guaranteed to always contain "Pre:" (an error string can end up being anything).

The LastValidValue is always the last valid value.

If there is no error, LastValidValue would be identical to value.
But in my JSON parser in HomeAssistant, I can be sure that LastValidValue always returns a correct value. Otherwise, I need to add some logic like "if value is empty, try parsing the error string and hope it contains Pre:".

[caco3]

ah, right, we should extend that.

[caco3]

#1154

[caco3]

now contained in rolling