javierg

defp deps do
  [
    ...
    {:guardian, "~> 0.13.0"}
  ]
end

javierg

alias PhoenixUeberauthComeonin.Repo

Repo.insert! %User{
  name: "Administrator",
  email: "admin@admin.com",
  password: Comeonin.Bcrypt.hashpwsalt("admin")
}

javierg

defmodule User do
  use PhoenixUeberauthComeonin.Web, :model

  import Comeonin.Bcrypt

  alias Ueberauth.Auth
  alias PhoenixUeberauthComeonin.Repo

  schema "users" do
    field :name, :string

javierg

<%= form_tag @callback_url, method: "post", class: "login", novalidate: true do %>
  <div class="control-group">
    <label class="control-label" for="email-input">Email</label>
    <input class="form-control" type="email" name="email" value="<%= @conn.params["email"] %>" required />
  </div>

  <div class="control-group">
    <label class="control-label" for="password-input">Password</label>
    <input class="form-control" type="password" name="password" required />
  </div>

javierg

defmodule PhoenixUeberauthComeonin.SessionsView do
  use PhoenixUeberauthComeonin.Web, :view
end

javierg

defmodule PhoenixUeberauthComeonin.SessionsController do
  use PhoenixUeberauthComeonin.Web, :controller

  alias Ueberauth.Strategy.Helpers
  plug Ueberauth

  def new(conn, _params) do
    render conn, "new.html", callback_url: Helpers.callback_url(conn)
  end

javierg

scope "/sessions", PhoenixUeberauthComeonin do
    pipe_through [:browser]
    get "/new", SessionsController, :new
    post "/identity/callback", SessionsController,  
                               :identity_callback
end

javierg

config :ueberauth, Ueberauth,
  providers: [
    identity: { Ueberauth.Strategy.Identity, [
        callback_methods: ["POST"],
        uid_field: :email,
        nickname_field: :email,
        request_path: "/sessions/new",
        callback_path: "/sessions/identity/callback",
      ]}
  ]

javierg

def application do
  [mod: {PhoenixUeberauthComeonin, []},
     applications: [
       ...
       ueberauth,
       ueberauth_identity,
   ...

javierg

defp deps do
  [...
   {:ueberauth, "~> 0.4"},
   {:ueberauth_identity, "~> 0.2"},
   ...]