Trying to import gmail contacts using node.js - node.js

Question

I'm trying to import gmail contacts. I have successfully obtained the access_token but when trying to get the contacts browser keeps throwing the error. invalid_grant
my codes below.
for authentication and callback.
authorize: function(req, res){
var CLIENT_ID = '927112080821-vhsphqc79tb5ohfgpuvrp8uhh357mhad.apps.googleusercontent.com';
var CLIENT_SECRET = 'gdgofL0RfAXX0in5JEiQiPW8';
var SCOPE = 'https://www.google.com/m8/feeds';
oa = new oauth.OAuth2(CLIENT_ID,
CLIENT_SECRET,
"https://accounts.google.com/o",
"/oauth2/auth",
"/oauth2/token");
res.redirect(oa.getAuthorizeUrl({scope:SCOPE, response_type:'code', redirect_uri:'http://localhost:1234/callback'}));
},
callback: function(req, res){
console.log(req.query.code);
oa.getOAuthAccessToken(req.query.code, {grant_type:'authorization_code', redirect_uri:'http://localhost:1234/callback'}, function(err, access_token, refresh_token) {
if (err) {
res.end('error: ' + JSON.stringify(err));
} else {
getContactsFromGoogleApi(access_token);
//res.write('access token: ' + access_token + '\n');
//res.write('refresh token: ' + refresh_token);
//res.end();
}
});
},
for importing contacts
function getContactsFromGoogleApi (access_token, req, res, next) {
console.log('access_token ' + access_token);
request.get({
url: 'https://www.google.com/m8/feeds/contacts/default/full',
qs: {
alt: 'json',
'max-results': 1000,
'orderby': 'lastmodified'
},
headers: {
'Authorization': 'OAuth ' + access_token,
'GData-Version': '3.0'
}
}, function (err, res, body) {
if(res.statusCode === 401){
return res.redirect('index');
}
var feed = JSON.parse(body);
var users = feed.feed.entry.map(function (c) {
var r = {};
if(c['gd$name'] && ['gd$fullName']){
r.name = c['gd$name']['gd$fullName']['$t'];
}
if (c['gd$email'] && c['gd$email'].length > 0) {
r.email = c['gd$email'][0]['address'];
r.nickname = r.email;//c['gd$email'][0]['address'].split('#')[0];
}
if(c['link']){
var photoLink = c['link'].filter(function (link) {
return link.rel == 'http://schemas.google.com/contacts/2008/rel#photo' &&
'gd$etag' in link;
})[0];
if(photoLink) {
r.picture = '/users/photo?l=' + encodeURIComponent(photoLink.href);
} else if (r.email) {
r.picture = gravatar.url(r.email, {
s: 40,
d: "https://ssl.gstatic.com/s2/profiles/images/silhouette80.png"});
}
}
return r;
}).filter(function (u) {
return !!u.email && //we can only give access to persons with email at this point
!~u.email.indexOf('#reply.'); //adress with #reply. are usually temporary reply address for forum kind of websites.
});
res.json(users);
});
}
really appreciate help.

Answer 1

In your getContactsFromGoogleApi function change the Authorization header to the following;
headers: {
'Authorization': 'Bearer ' + access_token,
'GData-Version': '3.0'
The following is code in C# to do the same thing
webClient = new WebClient();
webClient.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");
webClient.Headers.Add(HttpRequestHeader.Authorization, String.Format("Bearer {0}", AccessToken));
do
{
contactStream = webClient.DownloadData(String.Format("{0}?start-index={1}", BaseApiEndpoints[Applications.Contacts], startIndex));
contactDocument = System.Text.Encoding.Default.GetString(contactStream);
contacts = new XmlDocument();
contacts.LoadXml(contactDocument);
// TODO: use xsl to convert results to ContactSearchResults
xslt = new XslCompiledTransform();
resultStream = new MemoryStream();
writer = new XmlTextWriter(resultStream, Encoding.ASCII);
translateContact = new XmlDocument();
xslStream = GetRequest("GoogleContacts.xslt");
xslStream.Seek(0, SeekOrigin.Begin);
templateReader = XmlReader.Create(xslStream);
xslt.Load(templateReader);
xslt.Transform(contacts,writer);
resultStream.Seek(0, SeekOrigin.Begin);
TranslatedContacts = ConvertByteArrayToString(ReadFully(resultStream));
csr = (ContactSearchResults)Deserialize(typeof(ContactSearchResults), TranslatedContacts);
foreach (Contact contact in csr.Contacts)
{
contact.RecordId = Guid.NewGuid();
// now we want to get the image
contact.Picture = GetImage(contact.PictureUrl, AccessToken);
if ((!String.IsNullOrEmpty(contact.Name)) || (!String.IsNullOrEmpty(contact.Email)))
results.Add(contact);
}
startIndex += csr.ItemsPerPage;
} while (startIndex < totalResults);
Url I used here is the same as your code; http://www.google.com/m8/feeds/
When I did this in C# I did not need to pass the version.