HTTP request

[MiZ 0]

I have a while-loop in a LUA-scene

deviceStopDuration=6

countdown=-1

limit = 10

 

function sendText(message)

    local url=[URL]

    net.HTTPClient():request(url,{

        options={

            method = 'GET',

            timeout=2000

        },

        success = function(response)

            print("response.status .. "\n - ".. response.data)

        end,

        error = function(message)

            error("Error: " .. response.status .. " - ".. response.data .. " - ".. message)

        end

    })

end

 

hub.debug(tag,"-START---------------------------")

while not cancel do

    hub.debug(tag,countdown)  

    if measuredvalue > limit then  

       if countdown == -1 then

            sendText("Text to send when starting!")

      end

      countdown = deviceStopDuration

    else

        if countdown > 0 then

            countdown = countdown - 1

        elseif countdown < 0 then

            cancel=true

        end

    end

 

    if countdown == 0 then

        sendText("Text to send when done!")

        cancel=true

    elseif countdown > 0 then

        hub.sleep(1000)

    end

end

hub.debug(tag,"-END---------------------------")

where I want to send a HTTP request when:

1) I enter the loop

and

2) When the loop is exited

 

The request is executed in both situation, but the output from the code is:

[2024-06-27] [12:29:53] [DEBUG] [SCENE55]: -START---------------------------
[2024-06-27] [12:29:54] [DEBUG] [SCENE55]: 6
[2024-06-27] [12:29:56] [DEBUG] [SCENE55]: 5
[2024-06-27] [12:29:57] [DEBUG] [SCENE55]: 4
[2024-06-27] [12:29:58] [DEBUG] [SCENE55]: 3
[2024-06-27] [12:29:59] [DEBUG] [SCENE55]: 2
[2024-06-27] [12:30:00] [DEBUG] [SCENE55]: 1
[2024-06-27] [12:30:00] [DEBUG] [SCENE55]: -END---------------------------
[2024-06-27] [12:30:01] [DEBUG] [SCENE55]: Text to send when starting!
[2024-06-27] [12:30:01] [DEBUG] [SCENE55]: Text to send when done!

 

Everything is working, except that both texts are send simultaneously when the loop exits?

Why is the bold line above (12:30:01) written first upon exit of the loop??? What can be done to solve this?

 

I hope you guys understand and can guide me!

 

 

[jgab 2,642]

Http requests are asynchronous so there will be no time for the http callback until your while loop is done.

 

[MiZ 0]

Is there any way that I can send 2 requests, with a loop between, on 1 trig of the scene?

[jgab 2,642]

The easiest way is to replace the while loop with an "setInterval loop"

Please login or register to see this code.

 

Edited June 28, 2024 by jgab

[MiZ 0]

Hej @jgab!

And thanks for your reply!

 

Are setInterval and clearInterval possible to use in scenes? Or just in quickapps?

 

I get this error when implementing your suggestion:

(load):47: attempt to call a nil value (global 'setInterval')

[jgab 2,642]

Sorry, only available in QAs... 😕

You can implement them yourself...

Please login or register to see this code.

 

Edited June 29, 2024 by jgab

[MiZ 0]

Ahaaa, that's what I thought! Thanks!

 

Is there any way to make a QA run when a condition is met (i.e. temperature over xx degrees)? Or do I need to create a loop and check with an interval? Wouldn't that use to many system resources??

Edited July 4, 2024 by MiZ

[MiZ 0]

Hej @jgab, do you know how to trigger the request twice?