Getting address of the current location using GeoLocation API and Google MAP api

The HTML 5 has concept of Geo Location that lets you read current address of the user, So if your using a mobile device it will give you current address using GPS but if your using normal Laptop or Desktop it still gives you current address with less accuracy. In my case it gives address of AT&T office which is my internet provider. I wanted to figure out how GeoLocation API's work so i build this sample application that displays my current address. You can download the Geolocation.html file from here This is how my Geolocation.html page looks like in browser
My Geolocation.html page has one Get Location button when you click on that button it will show you address of the current location. Now the address is not always accurate. Also i tested this code in Firefox 12.0 and Internet Explorer 9, the Geolocation code does not work in Chrome if your accessing the file directly from file system i mean using file:// URL. This is the source code for the Geolocation.html

<!DOCTYPE html>
    <script src="">
    <script type="text/javascript" charset="utf-8">
   function getLocation(){
      console.log("Entering getLocation()");
        maximumAge: 3000, 
        timeout: 5000, 
        enableHighAccuracy: true 
      console.log("Oops, no geolocation support");
      console.log("Exiting getLocation()");
    function displayCurrentLocation(position){
      console.log("Entering displayCurrentLocation");
      var latitude = position.coords.latitude;
    var longitude = position.coords.longitude;
    console.log("Latitude " + latitude +" Longitude " + longitude);
      console.log("Exiting displayCurrentLocation");
   function  displayError(error){
    console.log("Entering ConsultantLocator.displayError()");
    var errorType = {
      0: "Unknown error",
      1: "Permission denied by user",
      2: "Position is not available",
      3: "Request time out"
    var errorMessage = errorType[error.code];
    if(error.code == 0  || error.code == 2){
      errorMessage = errorMessage + "  " + error.message;
    alert("Error Message " + errorMessage);
    console.log("Exiting ConsultantLocator.displayError()");
    function getAddressFromLatLang(lat,lng){
      console.log("Entering getAddressFromLatLang()");
      var geocoder = new google.maps.Geocoder();
        var latLng = new google.maps.LatLng(lat, lng);
        geocoder.geocode( { 'latLng': latLng}, function(results, status) {
        console.log("After getting address");
        if (status == google.maps.GeocoderStatus.OK) {
          if (results[1]) {
          alert("Geocode was not successful 
    for the following reason: " + status);
      console.log("Entering getAddressFromLatLang()");
    <h1>Display the map here</h1>
    <input type="button" id="getLocation"
 onclick="getLocation()" value="Get Location"/>
    <div id="map"></div>
When you click on Get Location button the control goes to getLocation() function which first checks if the browser supports GeoLocation API by checking navigator.geolocation object, if that object is not null that means browser supports GeoLocation and we ask browser for current location by calling navigator.geolocation.getCurrentPosition() with displayCurrentLocation() as a call back function if the current location lookup was successful. The browser calls displayCurrentLocation() function with current location using position object, which has longitude and latitude as properties. The latitude and longitude would have values like Latitude 37.5668988 Longitude -121.9753273, so we have to use the Google MAP API to get street address from the longitude and latitude values, for that we call getAddressFromLatLang function. Inside the getAddressFromLatLang() function i am creating object of google.maps.Geocoder and calling its geocode() method with latitude and longitude and it returns array of addresses for that location. Once i have the address i can print it using alert.


Lavanya said...

Thnx!! Sunil for providing the code.
Very nice.

Boris said...

Can't find a code that gives you exact street and number. Does that even exist?

raghavendra rao said...

Thanks for posting the code, but when i run the code it is working properly, but in the very next day it is showing the timeout error.
Please tell me the reason why it is throwing the time out error.

Nui said...

Thank you very much :)

Anonymous said...

Do you know how to cluster the points and get number of points in an area?

Anonymous said...

Not working for me! :/ I copied the code as it was, still not successful. Its saying.
Uncaught SyntaxError: Unexpected token ILLEGAL
Uncaught ReferenceError: getMeLocation is not defined

I got the browser output output showing "display the map here" and " Get location" button buy no effect after the button is clicked.
somebody help please !!!!

Anonymous said...

oops! found it. Thanks.
But why does it show only the plain address on browser when I click on "Get location" button?
What exactly my query is, I need to get the complete address of my current location but need to display it on map(Just like how Google maps does)

Anonymous said...

Guys can anyone tell me how to display the city name along with the current location and address?

Anonymous said...

Using the same code to display city name along with address

Sanjiv Jha said...

HI its shows error: Permission denied by user

Anonymous said...

thanks for the code, after 6 hours to try to find a code that works, i found your blog and was very happy, thanks a lot!

Jason Borne said...

Nice post and great content.
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