Überauth Bexio

Bexio OAuth2 strategy for Überauth.

Installation

1. Setup your application at Bexio Developer.

2. Add :ueberauth_bexio to your list of dependencies in mix.exs:

   def deps do
     [
       {:ueberauth_bexio, "~> 0.1.0"}
     ]
   end

3. Add Bexio to your Überauth configuration:

   config :ueberauth, Ueberauth,
     providers: [
       bexio: {Ueberauth.Strategy.Bexio, []}
     ]

4. Update your provider configuration:

   Use that if you want to read client ID/secret from the environment variables in the compile time:

   config :ueberauth, Ueberauth.Strategy.Bexio.OAuth,
     client_id: System.get_env("BEXIO_CLIENT_ID"),
     client_secret: System.get_env("BEXIO_CLIENT_SECRET")

   Use that if you want to read client ID/secret from the environment variables in the run time:

   config :ueberauth, Ueberauth.Strategy.Bexio.OAuth,
     client_id: {System, :get_env, ["BEXIO_CLIENT_ID"]},
     client_secret: {System, :get_env, ["BEXIO_CLIENT_SECRET"]}

5. Include the Überauth plug in your controller:

   defmodule MyApp.AuthController do
     use MyApp.Web, :controller
     plug Ueberauth
     ...
   end

6. Create the request and callback routes if you haven't already:

   scope "/auth", MyApp do
     pipe_through :browser
   
     get "/:provider", AuthController, :request
     get "/:provider/callback", AuthController, :callback
   end

7. Your controller needs to implement callbacks to deal with Ueberauth.Auth and Ueberauth.Failure responses.

For an example implementation see the Überauth Example application.

Calling

Depending on the configured url you can initiate the request through:

/auth/bexio

Or with options:

/auth/bexio?scope=email%20profile

By default the requested scope is "email". Scope can be configured either explicitly as a scope query value on the request path or in your configuration:

config :ueberauth, Ueberauth,
  providers: [
    bexio: {Ueberauth.Strategy.Bexio, [default_scope: "openid email profile"]}
  ]

TODO: decide what we want to write here!

To guard against client-side request modification, it's important to still check the domain in info.urls[:website] within the Ueberauth.Auth struct if you want to limit sign-in to a specific domain.

Copyright and License

Copyright (c) 2024 Rico Metzger

Released under the MIT License, which can be found in the repository in LICENSE.