reading-notes

Spring Authorization

Spring Boot and OAuth2

There are several sample that build on each other, adding new features at every step:

1. Simple: A very basic static app with only a home page and unconditional login

2. Click: Adds an explicit link that the user has to click to log in.

3. Sign Out: Adds a sign out link for authenticated users as well.

4. Two Providers: Adds a second login provider so that the user can choose on the main page which one to use.

5. Custom Error: Adds an error message for unauthenticated users and custom authentication that depends on the GitHub API.

Note:

• Every application can be imported into the IDE.

• All applications run on localhost:8080 because they will use OAuth 2.0 clients registered with GitHub and Google for that address.

How to login with single sign on github

1. Create a new project
2. Add a home page
3. Secure the application with GitHub and Spring Security to make the application secure.
4. Add a new GitHub app
5. Configure application.yml
6. Run the app

Adding an Error Page for Unauthenticated Users

1. Switching to GitHub
2. Detecting an Authentication Failure in the Client
3. Adding an Error Message
4. Generating a 401 in the Server

For more details Resources