Can this work with ngx.req.get_post_args()

I have some code like this

    ngx.ctx.uploads={} --m.getupload()
    ngx.req.read_body()
    ngx.ctx.posts={}
    args, err = ngx.req.get_post_args()
    for key, val in pairs(args) do
        ngx.ctx.posts[key]=val
        ngx.ctx.gets[key]=val

and m.getupload is using your library, to get all the uploads into table hashed by the input_name. it also save the non file data input to table posts

getupload:->
    form = upload\new(100000)
    file_name=""
    input_name=""
    resx=""
    result={}
    while form~=nil do
      typ, res, err = form\read()
      if typ == "header" then
        if res[1]=="Content-Disposition"
          tt=m.getfield(res)
          file_name = tt.filename
          input_name = tt.name
          resx=""

      elseif typ == "eof"
        break  
      elseif typ == "body"
        if input_name
          resx=resx..res

      elseif typ == "part_  "
        if file_name
          result[input_name]={file_name,resx}
          ngx.ctx.gets[input_name]=file_name
        else
          ngx.ctx.gets[input_name]=resx

        resx=""

if i enable uploads processing then the ngx.req.get_post_args() not work. perhaps i need to detect the enc-type multipart ?

Start with the upload library's form:read() flow and the ngx.req.get_post_args() call shown in the issue, focusing on how multipart request bodies are handled. Determine whether both APIs can process the same request and whether content-type detection is required; document the supported behavior and any necessary usage guidance.