sample03.rb

get '/sample03' do
  haml :sample03
end

post '/sample03' do

  set :client_id, params[:clientId]
  set :private_key, params[:privateKey]
  set :source, params[:source]
  set :url, params[:url]
  set :folder_path, params[:folderPath]
  set :callback, params[:callback]
  set :base_path, params[:basePath]

  begin

    raise 'Please enter all required parameters' if settings.client_id.empty? or settings.private_key.empty?

    if settings.base_path.empty? then settings.base_path = 'https://api.groupdocs.com' end

    GroupDocs.configure do |groupdocs|
      groupdocs.client_id = settings.client_id
      groupdocs.private_key = settings.private_key

      groupdocs.api_server = settings.base_path # default is 'https://api.groupdocs.com'
    end

    case settings.source

    when 'file'

      filepath = "#{Dir.tmpdir}/#{params[:file][:filename]}"

      File.open(filepath, 'wb') { |f| f.write(params[:file][:tempfile].read) }

      file = GroupDocs::Storage::File.upload!(filepath, {path: settings.folder_path, callbackUrl: settings.callback})

    when 'url'

      file = GroupDocs::Storage::File.upload_web!(settings.url)
    else raise 'Wrong GUID source.'
    end

    case settings.base_path

    when 'https://stage-api-groupdocs.dynabic.com'
      url = "http://stage-apps-groupdocs.dynabic.com/document-viewer/embed/#{file.guid}"
    when 'https://dev-api-groupdocs.dynabic.com'
      url = "http://dev-apps-groupdocs.dynabic.com/document-viewer/embed/#{file.guid}"
    else
      url = "https://apps.groupdocs.com/document-viewer/embed/#{file.guid}"
    end

    url = GroupDocs::Api::Request.new(:path => url).prepare_and_sign_url

    iframe = "<iframe src='#{url}' frameborder='0' width='720' height='600'></iframe>"

  rescue Exception => e
    err = e.message
  end

  haml :sample03, :locals => {:userId => settings.client_id, :privateKey => settings.private_key, :iframe => iframe, :err => err}
end