[Pierre]

Hi,

I am very new to QML and programming in general. I am trying to build a private app for my home automation system.

 

I built an HTTP REST client to fetch data from an API. It works pefectly for one request, but when I use the client function twice on the same page, it keeps recalculating both functions endlessly…

 

Here is my client code:

QtObject {
        id: _
        readonly property string apiUrl: "XXX"
        readonly property string apiKey: "XXX"
        property string jsonData: "null"
        property string value: "null"
        //property string collectdate: "null"

        function post(method, cmdid) {
            HttpRequest.post(apiUrl)
            .timeout(maxRequestTimeout)
            .set('Content-Type', 'application/json')
            .send({
                      "jsonrpc": "2.0",
                      "method": method,
                      "params": {"id":[cmdid],"apikey": apiKey}
                 })
            .end(function(err, res) {
                if(res.ok) {

                jsonData = JSON.stringify(res.body.result)

                var keys = Object.keys(res.body.result)
                //console.log("keys= " + keys)

                var keyid = keys [Object.keys(keys)[0]]
                //console.log("keyid= " + keyid)

                value = JSON.stringify(res.body.result[keyid].value)
                //console.log("valeur= " + value);

                var collectdate = JSON.stringify(res.body.result[keyid].collectDate)
                //console.log("date de collecte= " + collectdate);

                //return value

                }
                else {
                console.log(err.message)
                console.log(err.resonse)
                }
            }
            )
            return value
         }
   }

    function execCmd(cmdid) {
        console.log(_.post("methodtype", cmdid))
        return _.post("methodtype", cmdid)
    }
}

 

And my page code:

 

API{
        id: api
    }


    AppText {
        text: "Salon : " + api.execCmd(#CMDID_1#) + "°C"
        anchors.centerIn: parent
    }

    AppText {
        text: "Bureau : " + api.execCmd(#CMDID_2#) + "°C"
    }

 

So if I have only one AppText (one CMD_ID), it works fine. But with two CMD_ID, I have an infinite loop on both console and display.

 

I also tried with Promise, same result…

 

I have the feeling that I am missing a very simple programming concept…

 

Thanks a lot for your help
Pierre