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restful.html
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restful.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="author" content="(c) 2021-2023 Lars Wessels">
<title>RESTful</title>
<style>
body{padding:5px 0px 0px 20px;font-family:sans-serif;}
h1{font-size:1.5em;}
p{line-height:0.7em;}
#labels{float:left;width:170px;}
#status{background-color:#eeeeee;width:275px;padding: 2px 2px 2px 10px;}
</style>
<script>
function getReadings() {
var xhttp = new XMLHttpRequest();
var json;
if (document.getElementById("ip").value.length < 8)
return;
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
json = JSON.parse(xhttp.responseText);
document.getElementById("counter").innerHTML = json.totalCounter;
document.getElementById("consumption").innerHTML = json.totalConsumption;
document.getElementById("power").innerHTML = json.currentPower;
document.getElementById("runtime").innerHTML = json.runtime;
document.getElementById("rssi").innerHTML = json.rssi;
}
}
xhttp.open("GET", "http://" + document.getElementById("ip").value + "/readings", true);
xhttp.send();
}
</script>
<body onload="setInterval(function() { getReadings(); }, 2000);">
<div id="ampel">
<h1>Wifi Power Meter</h1>
<p><form onsubmit="return false;"><span style="color:red;">Enter IP-Address:</span>
<input id="ip" type="text" size="18"></form>
</p>
<div id="status">
<p><span id="labels">TotalCounter:</span><span id="counter">---</span></p>
<p><span id="labels">TotalConsumption:</span><span id="consumption">---</span> kWh</p>
<p><span id="labels">CurrentConsumption:</span><span id="power">---</span> Watt</p>
<p><span id="labels">Uptime:</span><span id="runtime">--</span> minutes</p>
<p><span id="labels">RSSI:</span><span id="rssi">--</span> dBm</p>
</div>
</div>
</body>
</html>