While implementing GeoLocation in Ionic cordova with AngularJS - angularjs

Question

I am getting below issue
Google Maps API warning: NoApiKeys
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 8,
center: {lat: -34.397, lng: 150.644}
/*( 3959 * acos( cos( radians(-34.397) ) * cos( radians( sa.lat ) ) * cos( radians( sa.lng ) - radians(:lng) )
sin( radians(-34.397) ) * sin( radians( sa.lat ) ) ) ) < :distance */
});
var geocoder = new google.maps.Geocoder();
document.getElementById('submit').addEventListener('click', function() {
geocodeAddress(geocoder, map);
});
}
function geocodeAddress(geocoder, resultsMap) {
var address = document.getElementById('address').value;
geocoder.geocode({'address': address}, function(results, status) {
if (status === 'OK') {
resultsMap.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: resultsMap,
position: results[0].geometry.location
});
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
}
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#floating-panel {
position: absolute;
top: 10px;
left: 25%;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
text-align: center;
font-family: 'Roboto','sans-serif';
line-height: 30px;
padding-left: 10px;
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?callback=initMap">
</script>
<div id="floating-panel">
<input id="address" type="textbox" value="Sydney, NSW">
<input id="submit" type="button" value="Geocode">
</div>
<div id="map"></div>

Answer 1

The error itself is self-descriptive. Just click the link and it will redirect you the following message:
The script element that loads the API has no API key. Please make sure you include a valid API key as a key parameter. You can generate a new API key on the Google API Console.
Also it provides link to guide about Obtaining an API key.
In short, you will need API key from google to run this code. Since you don't have this for now hence you are getting the warning.