HTTP Binding, Handling JSON

Add-ons Bindings
1

Hey,

So I am stuck trying to display a simple number on my sitemap.
What I have done so far:

  1. Installed the HTTP Binding
  2. Created an item as follows (Basically identical to the example provided):
    Number temp_name “temp” { http="<[http://ip-address:port/data.json:60000:JSONPATH($.temp)]" }
  3. Added a field into my sitemap
    Text item=temp

Now, my item is displaying on the sitemap but my temp values are not, I have checked and the JSON endpoint is fine so I have no idea what the problem could be.

If anyone could help me, i’d be very grateful.

Thanks, Daniel.

2

I changed the data type to a String and I am getting the entire json response body so it seems it’s just JSONPATH that’s not working

3

Had to install the JSONPATH transform in the paper UI. Would be handy if that was mentioned in the HTTP Binding documentation with the JSONPATH example.

1 Like
4

I’m having similar issue but even removing JSONPATH from the item does not help. Here my items’ definitions:

  1. Number Sensor "Sensor" { http="<[http://192.168.0.24/json:JSONPATH($.Sensors[1].TaskValues[1].Value)]" }

  2. String SensorText "SensorText" { http="<[http://192.168.0.24/json]" }

URL http://192.168.0.24/json shows correct json data in web browser.

Please help.

5

https://docs.openhab.org/addons/bindings/http1/readme.html

Maybe you need to add the update interval!

<[http://192.168.0.24/json:6000:REGEX((.*))]"
6

Hmm. Most probably you’re right.
After fist look into the documentation I thought this is port, not interval. so I’ve skipped this :slight_smile:
I will check this out in the evening.

Thanks.

[EDIT]
Works now. Thanks!