send_multipart_example.ex

defmodule SendMultipartClient do
  use Maxwell.Builder, ~w(post)a

  middleware Maxwell.Middleware.BaseUrl, "http://httpbin.org"
  middleware Maxwell.Middleware.Opts, [connect_timeout: 10000, recv_timeout: 20000]
  middleware Maxwell.Middleware.DecodeJson

  adapter Maxwell.Adapter.Hackney

  @doc """
  Post multipart form
  ###Example
  SendMultipartClient.post_multipart_form({:multipart, [{:file, "./mix.exs"}]})
  """
  def post_multipart_form(multipart) do
    new
    |> put_path("/post")
    |> put_req_body(multipart)
    |> post!
    |> get_resp_body(["files", "file"])
  end
end