Multipart post with a zip file

[ldonnet]

I want to make a post request with faraday with a zip file and it fails with multipart-post.

I have this code :

   conn = Faraday.new(:url => "mon_url") do |conn|
          # POST/PUT params encoders:
        conn.request :multipart
        conn.request :url_encoded

        conn.adapter :net_http
    end

    file = StringIO.new( { "parameters" => {
                                     "neptune-import" => {
                                       "no_save" => false,
                                       "user_name" => "user",
                                       "name" => "Mon test",
                                       "organisation_name" => "organisation",
                                       "referential_name" => "test",
                                     }
                                   }
                  }.to_s )
    action_params_io = Faraday::UploadIO.new(file, "application/json", "parameters.json")

    transport_data_io = Faraday::UploadIO.new(::Zip::File.open("demo.zip"), "application/zip", "demo.zip")

    payload = {
                                                  :file1 => action_params_io,
                                                  :file2 => transport_data_io,
                        }

conn.post "http://", payload 

And it returns an error on length method :

NoMethodError: undefined method `length' for #<Zip::File:0x007f0cb455eae8>
    from /home/luc/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/multipart-post-2.0.0/lib/composite_io.rb:102:in `method_missing'
    from (irb):47

Do you have any idea how I could do that with your gem?

Thanks for your time and your work
Luc Donnet

[sodabrew]

It looks like you are trying to decompress this file before you upload it. Are you sure you want to do that?

A zip file contains a directory structure, so it would be problematic to provide a length parameter that represents the size of all of its contents. It would also be problematic to try and present the directory structure output from a zip file as a single upload file.

You may want to read the documentation for Zip::File http://www.rubydoc.info/github/rubyzip/rubyzip/Zip/File

[ioquatix]

@sodabrew thanks - yeah, this is obviously a user issue, should really just be providing path to UploadIO.