Example
using Google.Contacts;
using Google.GData.Client;
using Google.GData.Contacts;
using Google.GData.Extensions;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using System.Web.Mvc;
namespace GoogleContactImport.Controllers
{
public class HomeController : Controller
{
public ActionResult Index()
{
return View();
}
public ActionResult Import()
{
string clientId = ""; // here you need to add your google client id
string redirectUrl = "http://localhost:1713/Home/AddGoogleContacts"; // here your redirect action method NOTE: you need to configure same url in google console
Response.Redirect("https://accounts.google.com/o/oauth2/auth?redirect_uri=" + redirectUrl + "&&response_type=code&&client_id=" + clientId + "&&scope=https://www.google.com/m8/feeds/&approval_prompt=force&access_type=offline");
return View();
}
public ActionResult AddGoogleContacts()
{
string code = Request.QueryString["code"];
if (!string.IsNullOrEmpty(code))
{
var contacts = GetAccessToken().ToArray();
if (contacts.Length > 0)
{
// You will get all contacts here
return View("Index",contacts);
}
else
{
return RedirectToAction("Index","Home");
}
}
else
{
return RedirectToAction("Index", "Home");
}
}
public List<GmailContacts> GetAccessToken()
{
string code = Request.QueryString["code"];
string google_client_id = ""; //your google client Id
string google_client_sceret = ""; // your google secret key
string google_redirect_url = "http://localhost:1713/MyContact/AddGoogleContacts";
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create("https://accounts.google.com/o/oauth2/token");
webRequest.Method = "POST";
string parameters = "code=" + code + "&client_id=" + google_client_id + "&client_secret=" + google_client_sceret + "&redirect_uri=" + google_redirect_url + "&grant_type=authorization_code";
byte[] byteArray = Encoding.UTF8.GetBytes(parameters);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = byteArray.Length;
Stream postStream = webRequest.GetRequestStream();
// Add the post data to the web request
postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
WebResponse response = webRequest.GetResponse();
postStream = response.GetResponseStream();
StreamReader reader = new StreamReader(postStream);
string responseFromServer = reader.ReadToEnd();
GooglePlusAccessToken serStatus = JsonConvert.DeserializeObject<GooglePlusAccessToken>(responseFromServer);
/*End*/
return GetContacts(serStatus);
}
public List<GmailContacts> GetContacts(GooglePlusAccessToken serStatus)
{
string google_client_id = ""; //client id
string google_client_sceret = ""; //secret key
/*Get Google Contacts From Access Token and Refresh Token*/
// string refreshToken = serStatus.refresh_token;
string accessToken = serStatus.access_token;
string scopes = "https://www.google.com/m8/feeds/contacts/default/full/";
OAuth2Parameters oAuthparameters = new OAuth2Parameters()
{
ClientId = google_client_id,
ClientSecret = google_client_sceret,
RedirectUri = "http://localhost:1713/Home/AddGoogleContacts",
Scope = scopes,
AccessToken = accessToken,
// RefreshToken = refreshToken
};
RequestSettings settings = new RequestSettings("App Name", oAuthparameters);
ContactsRequest cr = new ContactsRequest(settings);
ContactsQuery query = new ContactsQuery(ContactsQuery.CreateContactsUri("default"));
query.NumberToRetrieve = 5000;
Feed<Contact> ContactList = cr.GetContacts();
List<GmailContacts> olist = new List<GmailContacts>();
foreach (Contact contact in ContactList.Entries)
{
foreach (EMail email in contact.Emails)
{
GmailContacts gc = new GmailContacts();
gc.EmailID = email.Address;
var a = contact.Name.FullName;
olist.Add(gc);
}
}
return olist;
}
public class GmailContacts
{
public string EmailID
{
get { return _EmailID; }
set { _EmailID = value; }
}
private string _EmailID;
}
public class GooglePlusAccessToken
{
public GooglePlusAccessToken()
{ }
public string access_token
{
get { return _access_token; }
set { _access_token = value; }
}
private string _access_token;
public string token_type
{
get { return _token_type; }
set { _token_type = value; }
}
private string _token_type;
public string expires_in
{
get { return _expires_in; }
set { _expires_in = value; }
}
private string _expires_in;
}
}
}
