The construction is very simple and based on the Google Data API, a collection of libraries that provides a simple protocol for reading and writing data from the web.
First, download the GoogleDataApi (you find here), install them on your PC and add them as a reference to your project (in this case we can use Google.GData.Contacts.dll, Google.GData.Client.dll, Google.GData.Extensions.dll).
Importing different namespace
using Google.GData.Contacts;
using Google.GData.Client;
using Google.GData.Extensions;
using Google.GData.Client;
using Google.GData.Extensions;
Now you are ready to implement the code to read your Gmail contacts.
string authSubUrl = AuthSubUtil.getRequestUrl("http://www.example.com/Hello.asp", "http://www.google.com/m8/feeds/", False, True);
GAuthSubRequestFactory authFactory = new GAuthSubRequestFactory("cp", "exampleCo-exampleApp-1");
authFactory.Token = (String)Session["token"];
ContactsService service = new ContactsService("exampleCo-exampleApp-1");
service.setUserCredentials(email, password);
ContactsQuery query = new ContactsQuery(ContactsQuery.CreateContactsUri("default"));
ContactsFeed feed = service.Query(query);
GAuthSubRequestFactory authFactory = new GAuthSubRequestFactory("cp", "exampleCo-exampleApp-1");
authFactory.Token = (String)Session["token"];
ContactsService service = new ContactsService("exampleCo-exampleApp-1");
service.setUserCredentials(email, password);
ContactsQuery query = new ContactsQuery(ContactsQuery.CreateContactsUri("default"));
ContactsFeed feed = service.Query(query);
At this point in the feed.Entries there are contacts.
enough to extrapolate a simple loop to read through all the contacts, for example:
foreach (ContactEntry item in feed.Entries)
{
// in item.Name we have various "names" of the contact, for example:
//item.Name.FullName
//item.Name.FamilyName
//item.Name.GivenName
//item.Name.NamePrefix
//item.Name.NameSuffix
//item.Name.AdditonalName
// item.Emails while inside we have all the addresses associated with the various properties,
// So here just a simple read cycle to extract all the data:
{
// Email.Address you get in your email address
// In email.Home, email.Work, email.Other is a bool that
// Indicate if this address is
// Classified as Home, Work or Other
}
{
// in item.Name we have various "names" of the contact, for example:
//item.Name.FullName
//item.Name.FamilyName
//item.Name.GivenName
//item.Name.NamePrefix
//item.Name.NameSuffix
//item.Name.AdditonalName
// item.Emails while inside we have all the addresses associated with the various properties,
// So here just a simple read cycle to extract all the data:
foreach (EMail email in entry.Emails)
{
// Email.Address you get in your email address
// In email.Home, email.Work, email.Other is a bool that
// Indicate if this address is
// Classified as Home, Work or Other
}
}
Of course this is just an example of using these bees, for the simple extrapolation of the contacts from Gmail, the functions provided are varied and you can do much more.
