Elixir HTTPoison不'；不接受此自定义标题

我有一个下面的

curl请求

可以工作，但是当我把它翻译成下面的内容时，我得到了以下错误：这个标题有什么问题？我觉得我已经尽了一切可能

url = "https://content.dropboxapi.com/2/files/download"
header = [ {"Authorization", "Bearer #{token}"}, {"Dropbox-API-Arg", "{\"path\": \"/dropboxtest/image.jpg\"}"} ]
HTTPoison.post(url=url, header=header)

** (ArgumentError) argument error
    :erlang.iolist_to_binary([{"Authorization", "Bearer <removed>"}, {"Dropbox-API-Arg", "{\"path\": \"/dropboxtest/image.jpg\"}"}])
    (hackney) /Users/casey/Dropbox/BOS Sales LLC/backyardmicro/projects/k-9dryers/software/connectk9/deps/hackney/src/hackney_request.erl:348: :hackney_request.handle_body/4
    (hackney) /Users/casey/Dropbox/BOS Sales LLC/backyardmicro/projects/k-9dryers/software/connectk9/deps/hackney/src/hackney_request.erl:83: :hackney_request.perform/2
    (hackney) /Users/casey/Dropbox/BOS Sales LLC/backyardmicro/projects/k-9dryers/software/connectk9/deps/hackney/src/hackney.erl:376: :hackney.send_request/2
    (httpoison) lib/httpoison/base.ex:796: HTTPoison.Base.request/6

url=”https://content.dropboxapi.com/2/files/download"
header=[{“Authorization”，“bearrier{token}，{“Dropbox API Arg”，“{\“path\”：\“/dropboxtest/image.jpg\”}]
HTTPoison.post（url=url，header=header）
**（ArgumentError）参数错误
：erlang.iolist \-to \-u二进制（[{“授权”、“承载”}、{“Dropbox API参数”、“{\”路径\“：\”/dropboxtest/image.jpg \“}]））
（hackney）/用户/casey/Dropbox/BOS Sales LLC/backyardmicro/projects/k-9Dryer/software/connectk9/deps/hackney/src/hackney_request.erl:348:：hackney_request.handle_body/4
（hackney）/用户/casey/Dropbox/BOS Sales LLC/backyardmicro/projects/k-9Dryer/software/connectk9/deps/hackney/src/hackney_request.erl:83:：hackney_request.perform/2
（hackney）/用户/casey/Dropbox/BOS Sales LLC/backyardmicro/projects/k-9Dryer/software/connectk9/deps/hackney/src/hackney.erl:376:：hackney.send_request/2
（httpoison）lib/httpoison/base.ex:796:httpoison.base.request/6

要调用的函数是

它的形式如下：

HTTPoison.post(url, body, headers \\ [], options \\ []) 

因此，第一个参数应该是URL，然后是正文，然后只有标题

通过编写

HTTPoison.post（url=url，header=header）

，请注意

url=url

和

header=header

对于您试图实现的目标没有真正的意义，当您有一个空的主体时，只需编写：

HTTPoison.post(url, "", header)

（作为建议，如果我是你，我也会将

标题

重命名为

标题

）