Auth0

About

Auth0 is a SAAS identity and access management service

Authentication Flow

An app initiates an authentication request to Auth0.
Auth0 routes the request to an Identity Provider through a configured connection.
The user authenticates successfully.
The ID Token and/or Access Token is passed through the Rules pipeline,
then sent to the app

Every time a user is logged in you get access both:

to the access token
and the ID token.

The user's profile information is extracted from the ID token. Typically, the token is used to call your backend application and the profile information is used to display their name and profile picture.

Universal login

Auth0 will show a login page

You can use Auth0's Custom Domains in order to persist the same domain across the login page and the app. (ie login.YOUR_DOMAIN.com instead of YOUR_DOMAIN.auth0.com)

Whenever your app triggers an authentication request, the user will be redirected to the login page in order to authenticate. The /authorize endpoint trigger the Universal Login.

Navigate to the login page:

https://YOUR_DOMAIN/authorize?
  response_type=code|token&
  client_id=YOUR_CLIENT_ID&
  connection=CONNECTION&
  redirect_uri=https://YOUR_APP/callback&
  state=STATE

where:

state is the oauth state
connection is the datastore : database or social login
client_id is the client identifier

Metadata

From https://auth0.com/docs/universal-login/new-experience/universal-login-page-templates

Logging Settings

The settings available here are:

Logo (recommended size: 150 x 150 pixels)
Primary Color
Background Color

Ie:

branding.logo_url
branding.colors.primary
branding.colors.page_background

Application

application.id
application.name
application.logo_url
application.metadata

Tenant

tenant.friendly_name
tenant.support_email
tenant.support_url

Rules

Rules are JavaScript functions that execute when a user authenticates to your application or a token is refreshed.

Login page

You can deploy your custom login page from an external repository like GitHub, Bitbucket, GitLab,

Pricing

https://manage.auth0.com/dashboard/eu/tabulify/tenant/billing/subscription