elixir 函授返回json

爲了忘記，就寫在博客上吧

def add(conn, %{"name" => name, "password" => password} = user) do
    case Base.create_user(user)
    {:ok, user}
        conn
        #返回json
        |> json {success:true}
     {:error, %Ecto.Changeset{} = changeset} ->
        conn
        |> put_flash(:error, "添加項目人員失敗。")
        #返回文本
        |> text("error")
end