APICall

Yes, I confirm, as far as I know and referring to the documentation, you can only send JSON or URL_ENCODED. See URL and table at the end of this post.

One way (it was what I did before I add the "headers" option needed by my IOT server), is to make a little "proxy" with a custom web server. I used apache2, and a simple php script, to get a very simple request and call curl from this script.

I try to add code of my simple php script, but impossible, I will try to post in a reply.

----

developer.garmin.com/.../Communications.html

HttpRequestContentType

The code of the simple php script:

Note: I used this script on a local network. Security is really not good ... (passwd localy store, input not really checked : overflow ? ...)

<?php
// iotGarmin.php
// usage:
// iotGarmin.php?what=[action1
//     |action2
//     | ...
// ]
//

/////////////////////////////////////////////////////////////////////////////
// Const //
/////////////////////////////////////////////////////////////////////////////
$myLogin = "xxx";
$myPasswd = "xxx";
$myIP = "x.x.x.x";

/////////////////////////////////////////////////////////////////////////////
// Vars //
/////////////////////////////////////////////////////////////////////////////
$what = "";
$output = "";
$URL_PATH = "";
$URL_BODY = "";

/////////////////////////////////////////////////////////////////////////////
// Recuperation des variables passees par l'URL //
/////////////////////////////////////////////////////////////////////////////
if ($_GET["what"] != "")
    $what = $_GET["what"];

if ($what != null && strlen($what) > 0) {
    switch ($what) {
        case "action1":
            $URL_PATH = "api/devices/286/action/pressButton";
            $URL_BODY = "{\"args\":[1]}";
        break;
        case "action2":
            $URL_PATH = "api/devices/286/action/pressButton";
            $URL_BODY = "{\"args\":[2]}";
        break;

        default:
            http_response_code(501);
            //echo "DEBUG : bad parameter : (what=" . $what . ")";
            //echo json_encode(["result" => "Invalid what : ". $what]);
    }

    if ($URL_PATH != "") {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, "http://" . $myIP . "/" . $URL_PATH);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json','Content-Length: ' . strlen($URL_BODY)));
        curl_setopt($ch, CURLOPT_USERPWD, $myLogin . ":" . $myPasswd);
        curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
        curl_setopt($ch, CURLOPT_POSTFIELDS,$URL_BODY);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response = curl_exec($ch);
        $info = curl_getinfo($ch);
        curl_close($ch);

        //Return curl return
        if ($info['http_code'] != 202)
            http_response_code($info['http_code']);
        echo $_GET["what"] . " _ " . $_GET["test"];
    }
} else {
    http_response_code(406);
    // echo "DEBUG : missing parameter : (what=" . $what . ")";
    // echo json_encode(["result" => "missing what"]);
}

Thanks! In case of openHAB, there is a Webhook HTTP binding, which could be used to setup a URL with GET parameters, and take some action. I would have preferred to use the default REST API, but since that is not possible, I'll play around a bit with that binding.

But in any case, for my main use case, triggering our car gates, the Shelly cloud API works great. I wrote a short blog article about the different options I looked at, why I choose APICall and how I set it up:

www.the-ninth.com/.../smart-home-control-from-garmin-devices

Great article! May I mention it on my website and/or on the page of the app on Garmin IQ?

Yes, of course!

I've now got openHAB to work with GET requests, via that Webhook Binding and some scripts.

However, I cannot get it to work with APICall and the Bluetooth connection. When I set media:"WIFI-LTE" it works, but without that, I get an error "KO: -300 Request Timeout". When I test the URL on my mobile phone's browser, it works fine. Also the action I defined for Shelly via their cloud service works, so it seems only access to the local network is affected.

Here is my code:

{deviceName:"Bedroom",deviceIcon:62,actionName:"Toggle",actionIcon:65,url:"http://192.168.0.10:8080/webhook/d1097152a4?action=toggle&itemName=Steckdose_OG_SZ_Switch"}

Any idea of what I could be doing wrong?

Yes, http (not secured) is not supported by android or IOS, whereas it's OK directly from the watch. Please read the first "common issue" here : apicall.dumesnil.net/releasenotes_en.html

Good morning! I found the issue now, in the app settings Local Network access was disabled. After enabling it works with unsecured http. I think when trying MyHomeControl I read there that iOS supports http and https and only Android supports only https. But maybe that is also limited to certain iOS versions, like you write on your page. Mine is iOS 17.4.1, the latest one.

In my case https does not work, because of the self-signed certificate. But I might have to remedy that anyway, because I also would like to get this to work on my wife’s Garmin in combination with her Android phone. 

Below another blog article, on how to setup openHAB to enable calls from Garmin devices in general and APICall in particular:

www.the-ninth.com/.../openhab-garmin