Extraction of equivalent elements from JSON-call's response

[Toulon7559]

With a json-cal including RID you get a response for that specific device.
With a json-call mentioning type of device you get a selective response over a range of devices.
With /json.htm?type=devices&filter=all&used=true&order=Name
you get a response in one big file which combines the latest information on all devices.

It means that for the latter 2 cases in a response-file you have multiple occurrence of Temp, Humidity or Utility.
Is there an easy&simple way to extract e.g. all Temp-values, all Humidity-values or all Utility-values from such response-file in a such way that you can recognize from which device they originated?

[Egregius]

The type and subtype is in the json array.
Or create roomplans to group your devices.
For example: I use a roomplan that holds 60 devices wich are shown on my floorplan. Because I only pull the devices I need the response time and data transfer is only 1/3 compared to all used devices.
Another example: camera with motion detection, that one only needs the status of 3 switches. Why would I pull all?

[Toulon7559]

@Egregius

This is a case in which a solution triggers a next question.
With this thread I created a 'chain' between Domoticz and my website from a 'simple' JSON-call to one RID till display at my website.

But if you can deal with one RID, the challenge comes how to deal with a series of JSON-calls without simply repeating the process at the 'transmitting side'. Such simple repetition could e.g. be a cronjob calling a series of equivalent scripts.
Regardless how you setup such cronjob, there must be more clever ways to make the 'extraction' of a collection of values for application at the website.

[Egregius]

You're putting the data from domoticz on your webserver to show it there?
Why not pull it directly in your page so you have realtime data?

[Toulon7559]

@ Egregius

The 'pull' you mention is exactly the critical aspect: it requires calling from the internet to my LAN.
I do not want access from the internet to my LAN.
Instead I am looking for a 'pushing' solution, with controlled upload to the webserver.

Perhaps MQTT is the solution, but I have absolutely no experience with that function/application:
a good example may be useful ........

[Egregius]

My domoticz isn't available on the internet, only my webserver
Guess it depends on weither you use server side or client side language. Another advantage of PHP then?

To push: Maybe my pass2php can be altered easily.
Basically it encodes the complete LUA tables and posts them to a PHP page.
If you capture them theire to store them in memcached or anything like that you would have realtime data without opening your lan.

[Toulon7559]

For the upcoming winter-evenings perhaps some time to be spent for study of PHP and MQTT (besides Python-scripts and Javascripts).
Somebody a good hint for literature for Dummies on the subjects PHP and MQTT?
In which 'literature' may also mean an online quick course or instruction.

[Egregius]

Google is your best friend.
Everything I did/do in shell,Python,PHP,... I learned from Google.