Elixir:
发出 HTTP 请求

# mix.exs 文件
defp deps do
  [{:httpoison, "~> 1.8"}]
end

# 然后在代码里：
HTTPoison.start()

case HTTPoison.get("https://api.example.com/data") do
  {:ok, %HTTPoison.Response{status_code: 200, body: body}} ->
    IO.puts("成功获取数据： #{body}")
  {:error, %HTTPoison.Error{reason: reason}} ->
    IO.puts("请求失败： #{reason}")
end