issue CodeRoyale#26 : implemented github authentication using passport.

package.json

@@ -17,6 +17,8 @@
     "nodemailer": "^6.4.17",
     "passport": "^0.4.1",
     "passport-facebook-token": "^4.0.0",
+    "passport-github2": "^0.1.12",
+    "passport-jwt": "^4.0.0",
     "swagger-jsdoc": "^4.0.0"
   },
   "devDependencies": {

server/utils/githubAuth.js

@@ -0,0 +1,57 @@
+const { sign } = require('jsonwebtoken');
+const GitHubStrategy = require('passport-github2').Strategy;
+const passport = require('passport');
+const passportJwt = require('passport-jwt');
+
+function authJwt(email) {
+  return sign({ user: { email } }, `SECRET`);
+}
+
+passport.use(
+  new GitHubStrategy(
+    {
+      clientID: `GITHUB_CLIENT_ID`,
+      clientSecret: `GITHUB_CLIENT_SECRET`,
+      // callbackURL: `${BASE_URL}${ENDPOINT}/auth/github/callback`,
+      scope: ['user:email'],
+    },
+    async (accessToken, refreshToken, profile, done) => {
+      try {
+        //* can include other required attributes
+        const email = profile.emails[0].value;
+
+        // Here you'd typically create a new or load an existing user and
+        // store the bare necessary informations about the user in the JWT.
+        const jwt = authJwt(email);
+
+        return done(null, { email, jwt });
+      } catch (error) {
+        return done(error);
+      }
+    }
+  )
+);
+
+// ? this can act as a common strategy for authtication using jwt
+passport.use(
+  new passportJwt.Strategy(
+    {
+      jwtFromRequest(req) {
+        if (!req.cookies) throw new Error('Missing cookie-parser middleware');
+        return req.cookies.jwt;
+      },
+      secretOrKey: `SECRET`,
+    },
+    async ({ user: { email } }, done) => {
+      try {
+        // Here you'd typically load an existing user
+        // and use the data to create the JWT.
+        const jwt = authJwt(email);
+
+        return done(null, { email, jwt });
+      } catch (error) {
+        return done(error);
+      }
+    }
+  )
+);