CODEWITHSUNDEEP
typescriptexpresspassport.jspassport-google-oauth
Projjol
Projjol

Reputation: 1395

Define passport strategy in a separate file and use it across the app

I've been trying this for quite a while, but I just can't seem to get a hang of how this works.

I have a passport.ts file which roughly is defined as:

passport.serializeUser<any, any>((user, done) => {
    done(undefined, 1);
});

passport.deserializeUser((id, done) => {
    done(null, 1);
});

// Strategy config
const GoogleStrategy = passportGoogle.Strategy
passport.use(new GoogleStrategy({
    clientID: config.get('googleAuth.clientID'),
    clientSecret: config.get('googleAuth.clientSecret'),
    callbackURL: config.get('googleAuth.callbackURL'),
    passReqToCallback: true
}, async (accessToken, refreshToken, profile, done)=> {
    return done
}))

In the root directory of the project, I have an index.ts which does the standard passport initialization:

app.use(passport.initialize());
app.use(passport.session());

I'm defining controllers via express's Router function in different files, one of which is authenticate.ts which is roughly along these lines:

import {Router} from 'express';
import passport from 'passport';
import config from 'config';
import * as passportConfig from '../utils/passport' //this is passport.ts which was pasted above
const router = Router();

router.get('/google', passport.authenticate('google', {scope: config.get('googleAuth.scope')}));

I understand that I am missing the callback route, but I had issues making this work as I am unsure as to how the passport object defined in passport.ts with the strategy can be used in different files.

Any help would be great!

Upvotes: 0

Views: 1805

Answers (1)

Naresh
Naresh

Reputation: 1261

as far as I understood, you want to define your passport strategy in a separate file and use them. For that you can do something like this

Create a file to define your strategy google-strategy.ts

const googleStrategy = new GoogleStrategy({
    clientID: config.get('googleAuth.clientID'),
    clientSecret: config.get('googleAuth.clientSecret'),
    callbackURL: config.get('googleAuth.callbackURL'),
    passReqToCallback: true
}, async (accessToken, refreshToken, profile, done)=> {
    return done
})
module.exports = googleStrategy;

and in your passport.ts file

const googleStrategy = require('./google-strategy');
// giving a name to a strategy so we can refer it in routes
passport.use('MyGoogleStrategy', googleStrategy);

and in your authenticate.ts file

router.get('/google', passport.authenticate('MyGoogleStrategy', {scope: config.get('googleAuth.scope')}));

hope this helps!

Upvotes: 1

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