gistfile1.txt

  uuid = SecureRandom.uuid
  newline = "\r\n"
  boundary = "----------#{Time.now.nsec}"

  folder_id = 654664
  file_path = Rails.root.join("sample.pdf")
  file = File.read(file_path)

  uri_str = "https://www4.idealsvdr.com/v3/api/File/UploadFile?contentLength=#{file.size}&fileName=#{file_path.basename.to_s}&folderId=#{folder_id}&resumeSize=0&uid=#{uuid}"
  uri = URI.parse(uri_str)

  post_body = []
  post_body << "--#{boundary}#{newline}"
  post_body << "Content-Disposition: form-data; name=\"_chunkSize\"#{newline}#{newline}"
  post_body << file.size

  post_body << "#{newline}--#{boundary}#{newline}"
  post_body << "Content-Disposition: form-data; name=\"_currentChunkSize\"#{newline}#{newline}"
  post_body << file.size

  post_body << "#{newline}--#{boundary}#{newline}"
  post_body << "Content-Disposition: form-data; name=\"_currentNumber\"#{newline}#{newline}"
  post_body << 0

  post_body << "#{newline}--#{boundary}#{newline}"
  post_body << "Content-Disposition: form-data; name=\"_totalSize\"#{newline}#{newline}"
  post_body << file.size

  post_body << "#{newline}--#{boundary}#{newline}"
  post_body << "Content-Disposition: form-data; name=\"file\"; filename=\"#{file_path.basename.to_s}\"#{newline}"
  post_body << "Content-Type: application/octet-stream#{newline}#{newline}"
  post_body << file
  post_body << "#{newline}--#{boundary}--#{newline}"

  request = Net::HTTP::Post.new(uri.request_uri)
  request.body = post_body.join
  request["Content-Type"] = "multipart/form-data; boundary=#{boundary}"
  request['Content-Length'] = request.body().length
  request["TokenId"] = token_id
  request["RoomId"] = 7104

  http = Net::HTTP.new uri.host, uri.port
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE

  response = http.request request