I wish to create a sensor based on the contens of a local file

[mprowe (Martin)]

I hope I am using the correct terms in the topic heading. The details are:

1. I have a JSON file on the HA disc (/homeassistant/quota.txt)

{
        "tx": 155946651,
        "rx": 1671159037
}

2. I would like to be able to display a sensor containing these values in a lovelace dashboard.

I see that there is a File Integration but I am unable to find any examples using it. Is that the way to go? Are there other routes?

Regards, Martin

Core: 2024.8.0
Supervisor: 2024.08.0
Operating System: 12.4
Frontend: 20240806.1

[tom_l]

@mprowe

Is that the way to go?

No.

https://www.home-assistant.io/integrations/file/#sensor

[mprowe (Martin)]

Thanks. I can pre-process the file:

{  "tx": 155946651,  "rx": 1671159037 }

… will that help? Or am I barking up the wrong tree"?

M.

[tom_l]

@mprowe

will that help?

Yes.

[mprowe (Martin)]

What is a valid path? Is your screenshot an example or working? Is it absolute (/homeassistant/www/community) or relative (/www/community).
Why are both reporting:

frontend:
  extra_module_url:
    - /local/hacsfiles/lovelace-card-mod/card-mod.js
allowlist_external_dirs:
  # - /www/community
  # - /homeassistant/www/community #un-rem one at a time...
 
##Removed by MPR 04/01/2024
# Added by MPR 11/9/23
#sensor:  

In the above snippet from my configuration.yaml, what is the meaning of “/local/”

M.

[tom_l]

Allowlist goes under homeassistant.

frontend:
  extra_module_url:
    - /local/hacsfiles/lovelace-card-mod/card-mod.js
homeassistant:
  allowlist_external_dirs:
    - /www/community
    - /homeassistant/www/community #un-rem one at a time...

/local is a short-cut for /config/www

[mprowe (Martin)]

Thank you Tom,
Okay, first couple of hurdle bounded (well, surmounted anyway!). So how do I test?
I think I have a file in the right place (/local/quota.txt) that looks like this:

{"tx": 158427195,"rx": 1703395903}

I think I have created a File integration:

Where/how do I read the contents of the file quota.txt?
M.

[tom_l]

The file sensor integration will poll the file for updates every 10 seconds or so.

[mprowe (Martin)]

Oh… Then something is not right?

M.

[tom_l]

Most likely your file path.

[mprowe (Martin)]

Seems as if only the /config/ works?

homeassistant:
  allowlist_external_dirs:
    #- /local/
    #- /local/hacsfiles
    - /config/     #Works.....????
    - /config/www/ #Does not work?

But I’m probably doing it all wrong?
M.

[tom_l]

Did you restart home assistant after creating the www folder?