gistfile1.txt

  def create(conn, %{"grant_type" => "password",
    "username" => username,
    "password" => password}) do
    try do
      user = User
      |> where(username: ^username)
      |> where(active: true)
      |> Repo.one!

      cond do
        checkpw(password, user.password) ->
          # Encode a JWT
          { :ok, jwt, _} = Guardian.encode_and_sign(user, :token)
          conn
          |> json(%{access_token: jwt}) # Return token to the client
        true ->
          # Unsuccessful login, return 401
          conn
          |> put_status(401)
          |> render(Admin.ErrorView, "401.json-api")
      end
    rescue
      _ ->
        conn
        |> put_status(:unprocessable_entity)
        |> render(:errors, data: [])
    end
  end