social login in node js and express js
// Load HTTP module
const http = require("http");
const hostname = "127.0.0.1";
const port = 8000;
// Create HTTP server
const server = http.createServer((req, res) => {
// Set the response HTTP header with HTTP status and Content type
res.writeHead(200, {'Content-Type': 'text/plain'});
// Send the response body "Hello World"
res.end('Hello World\n');
});
// Prints a log once the server starts listening
server.listen(port, hostname, () => {
console.log(`Server running at http://${hostname}:${port}/`);
})
passport.use('twitter', new TwitterStrategy({
consumerKey : twitterConfig.apikey,
consumerSecret : twitterConfig.apisecret,
callbackURL : twitterConfig.callbackURL
},
function(token, tokenSecret, profile, done) {
// make the code asynchronous
// User.findOne won't fire until we have all our data back from Twitter
process.nextTick(function() {
User.findOne({ 'twitter.id' : profile.id },
function(err, user) {
// if there is an error, stop everything and return that
// ie an error connecting to the database
if (err)
return done(err);
// if the user is found then log them in
if (user) {
return done(null, user); // user found, return that user
} else {
// if there is no user, create them
var newUser = new User();
// set all of the user data that we need
newUser.twitter.id = profile.id;
newUser.twitter.token = token;
newUser.twitter.username = profile.username;
newUser.twitter.displayName = profile.displayName;
newUser.twitter.lastStatus = profile._json.status.text;
// save our user into the database
newUser.save(function(err) {
if (err)
throw err;
return done(null, newUser);
});
}
});
});
})
);
