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Before Class 8

Passport and "Sign in using __"

One of the great features of OAuth is that it allows us to use another service to authenticate users of our service. This means we can piggy back on someone else to handle the hard parts of signing in to a service. The library Passport makes this really easy, if not a bit complicated.

Assignment

Read a little bit about Passport, and then this tutorial they've linked in the documentation. You should aim to understand how to integrate Passport into an Express application to handle user sign in. Don't get hung up on the term 'Strategy,' it's just Passport's way of saying 'method of authentication.'

This week we're going to be using Twoter as a base for your exercise and ask you to do the following things:

  1. Allow users to sign in to your service using Facebook
  2. Use Passport's LocalStrategy to sign users in with a username and password.
  3. DO NOT PUSH YOUR OAUTH KEYS TO GITHUB
  4. Only display Twotes on / if the user has been authenticated
  5. Try to keep all of you Passport logic out of app.js like we've been doing with all of our other routes. How might you go about this?
  6. Don't push to Heroku until we've had a chance to evaluate the functionality of Homework 6 separately. We will notify you when you can deploy.
  7. DO NOT PUSH YOUR OAUTH KEYS TO GITHUB
Getting set up with FB OAuth

In order to use Passport with Facebook, you'll need an application ID and secret key. You can get these by signing up as a developer on Facebook's developer website and creating a new application (under 'My Apps'). The only setting you will need to change for this application is to set 'Site URL' to http://localhost:3000 so Facebook knows where to redirect OAuth requests. Note that when you deploy to Heroku, you will need to change this to your apps herokuapp.com address.

When we start working on projects, you might want to have a live version of your site deployed while you continue to work on it locally. In order to do this, you might consider having two Facebook applications: my-app and my-app-dev. Then you can set up your local application to use my-app-dev, and your deployed site to use my-app.

Submitting

When you're done with your app, fill out the Twoter homework survey. The survey is your submission for homeworks 6 and 7.

Preclass Reading and Exercise

  • Read the Class 8 README before next class.
  • Send an email to [email protected] with the subject line "Preclass 8" telling us about...
    • Something in the reading you felt confident about and easily grasped
    • Something in the reading you're confused about or want to know more about