InternalOAuthError: failed to obtain request token

.gitignore

@@ -1,2 +1,3 @@
 .DS_Store
-/node_modules
+/node_modules
+.env

app.js

@@ -29,6 +29,41 @@ app.use(express.static(__dirname + '/public'));
 // Setting up the Passport Strategies
 require("./config/passport")(passport)
 
-// Add code here:
+
+app.get('/', function(req, res){
+  res.render('layout', {user: req.user});
+});
+
+// FACEBOOK
+app.get('/auth/facebook', passport.authenticate('facebook', { scope: 'email'} ));
+app.get('/auth/facebook/callback',
+  passport.authenticate('facebook', {
+    successRedirect: '/',
+    failureRedirect: '/'
+  })
+);
+
+// TWITTER
+app.get('/auth/twitter', passport.authenticate('twitter', { scope: 'email'} ));
+app.get('/auth/twitter/callback',
+  passport.authenticate('twitter', {
+    successRedirect: '/',
+    failureRedirect: '/'
+  })
+);
+
+// GOOGLE
+app.get('/auth/google',passport.authenticate('google', { scope: 'email' } ));
+app.get('/auth/google/callback',
+  passport.authenticate('google', {
+    successRedirect: '/',
+    failureRedirect: '/'
+  })
+);
+
+app.get("/logout", function(req, res){
+  req.logout()
+  res.redirect("/")
+})
 
 app.listen(3000);

config/passport.js

@@ -0,0 +1,117 @@
+var User = require('../models/user');
+var FacebookStrategy = require('passport-facebook').Strategy;
+var TwitterStrategy = require('passport-twitter').Strategy;
+var GoogleStrategy = require('passport-google-oauth').OAuth2Strategy;
+
+
+
+module.exports = function(passport){
+  passport.serializeUser(function(user, done) {
+    done(null, user._id);
+  });
+
+  passport.deserializeUser(function(id, done) {
+    User.findById(id, function(err, user) {
+      console.log('deserializing user:',user);
+      done(err, user);
+    });
+  });
+
+  passport.use('google', new GoogleStrategy({
+    clientID      : process.env.GOOGLE_API_KEY,
+    clientSecret  : process.env.GOOGLE_API_SECRET,
+    callbackURL   : "http://localhost:3000/auth/google/callbacK"
+  },function(token, tokenSecret, profile, done) {
+
+    process.nextTick(function() {
+
+      User.findOne({ 'gg.id' : profile.id }, function(err, user) {
+        if (err) return done(err);
+        if (user) {
+          return done(null, user);
+        } else {
+
+          var newUser             = new User();
+          newUser.gg.id           = profile.id;
+          newUser.gg.access_token = token;
+          newUser.gg.firstName    = profile.displayName;
+          newUser.gg.email        = profile.email;
+
+          newUser.save(function(err) {
+            if (err)
+              throw err;
+            return done(null, newUser);
+          });
+        }
+
+      });
+    });
+  }));
+
+  passport.use('twitter', new TwitterStrategy({
+    consumerKey   : process.env.TWITTER_API_KEY,
+    consumerSecret: process.env.TWITTER_API_SECRET,
+    callbackURL   : "http://localhost:3000/auth/twitter/callback"
+  },function(token, tokenSecret, profile, done) {
+
+    process.nextTick(function() {
+
+      User.findOne({ 'tw.id' : profile.id }, function(err, user) {
+        if (err) return done(err);
+        if (user) {
+          return done(null, user);
+        } else {
+
+          var newUser             = new User();
+          newUser.tw.id           = profile.id;
+
+          newUser.save(function(err) {
+            if (err)
+              throw err;
+            return done(null, newUser);
+          });
+        }
+
+      });
+    });
+  }));
+
+  passport.use('facebook', new FacebookStrategy({
+    clientID        : process.env.FACEBOOK_API_KEY,
+    clientSecret    : process.env.FACEBOOK_API_SECRET,
+    callbackURL     : 'http://localhost:3000/auth/facebook/callback',
+    enableProof     : true,
+    profileFields   : ['name', 'emails']
+  }, function(access_token, refresh_token, profile, done) {
+
+    // // Use this to see the information returned from Facebook
+    // console.log(profile)
+
+    process.nextTick(function() {
+
+      User.findOne({ 'fb.id' : profile.id }, function(err, user) {
+        if (err) return done(err);
+        if (user) {
+          return done(null, user);
+        } else {
+
+          var newUser = new User();
+          newUser.fb.id           = profile.id;
+          newUser.fb.access_token = access_token;
+          newUser.fb.firstName    = profile.name.givenName;
+          newUser.fb.lastName     = profile.name.familyName;
+          newUser.fb.email        = profile.emails[0].value;
+
+          newUser.save(function(err) {
+            if (err)
+              throw err;
+            // after this is saved it will create a variable in the user object
+            return done(null, newUser);
+          });
+        }
+
+      });
+    });
+  }));
+
+}

models/user.js

@@ -0,0 +1,20 @@
+var mongoose = require('mongoose');
+
+module.exports = mongoose.model('User',{
+  // details from fb acct
+  fb: {
+    id: String,
+    access_token: String,
+    firstName: String,
+    lastName: String,
+    email: String
+  },
+  tw: {
+    id: String,
+    access_token: String
+  },
+  gg: {
+    id: String,
+    access_token: String
+  }
+});

package.json

@@ -12,6 +12,7 @@
     "morgan": "~1.0.0",
     "passport": "^0.2.0",
     "passport-facebook": "^2.0.0",
-    "passport-google-oauth": "~0.1.5"
+    "passport-google-oauth": "~0.1.5",
+    "passport-twitter": "^1.0.3"
   }
 }

views/layout.ejs

@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Facebook authentication</title>
+</head>
+<body>
+  <h1>FACEBOOK LOGIN USING PASSPORT</h1>
+  <div>
+    <% if(user != undefined){ %>
+      <h2>Below is the data sent by facebook</h2>
+      <pre>
+        <%= user.fb %>
+      </pre>
+      <a href="/logout">Logout</a>
+    <% } else { %>
+      <a href="/auth/facebook">Login with Facebook</a>
+    <% } %>
+  </div>
+
+  <h1>TWITTER LOGIN USING PASSPORT</h1>
+  <div>
+    <% if(user != undefined){ %>
+      <h2>Below is the data sent by TWITTER</h2>
+      <pre>
+        <%= user.tw %>
+      </pre>
+      <a href="/logout">Logout</a>
+    <% } else { %>
+      <a href="/auth/twitter">Login with TWITTER</a>
+    <% } %>
+  </div>
+
+    <h1>GOOGLE LOGIN USING PASSPORT</h1>
+  <div>
+    <% if(user != undefined){ %>
+      <h2>Below is the data sent by GOOGLE</h2>
+      <pre>
+        <%= user.gg %>
+      </pre>
+      <a href="/logout">Logout</a>
+    <% } else { %>
+      <a href="/auth/google">Login with GOOGLE</a>
+    <% } %>
+  </div>
+</body>
+</html>