Template not evaluated with platform rest

Configuration
1

Hello

I have created a sensor to retrieve the information of an API with the platform rest and resource_template.

If the resource template is harcoded, it works well and I get the information I need

resource_template: "https://api.meteo-concept.com/api/location/city?token=myToken&latlng=xx.xxxxx,yy.yyyyy"

If the resource template uses the longitude and latitude as a parameter of my phone, the URL is not well evaluated. Here is an example :

resource_template: "https://api.meteo-concept.com/api/location/city?token=myToken&latlng={{ state_attr('myPhone', 'latitude')}},{{ state_attr('myPhone, 'longitude')}}"

In the Debug I have this :

resource_template: "https://api.meteo-concept.com/api/location/city?token=myToken&latlng=none,none"

It looks as if the URL was not well evaluated before being sent to the API.
I may have found other posts with the same issue but still unsolved.

Do you know how to solve this issue ?
Thanks to all for your help.
Regards

2

What does that give in the template debugger?

3

if it’s coming out None,None then your template is wrong. Either the wrong entity_id or the wrong attribute. Can you please show the actual code you’re using instead of this fake abbreviation in your post?

4

Thanks to all

The issue was not the template itself but the time needed during the start of HA to update the longitude/latitude sensor.
With a sensor.uodate, it has been solved.
Sorry for the trouble