sample39.rb

sample39.rb

GET request

get '/sample-39-how-to-add-a-signature-to-a-document-and-re-direct-after-signing-with-groupdocs-widget' do
  haml :sample39
end

¶

GET request
```
get '/popup' do
  haml :popup
end
```

POST request

post '/sample39/signature_callback' do
  begin

Get callback request

    data = JSON.parse(request.body.read)

    raise 'Empty params!' if data.empty?
    source_id = nil
    client_id = nil
    private_key = nil

Get value of SourceId

    data.each do |key, value|
      if key == 'SourceId'
        source_id = value
      end
    end

Get private key and client_id from file user_info.txt

    if File.exist?("#{File.dirname(__FILE__)}/../public/user_info.txt")
      contents = File.read("#{File.dirname(__FILE__)}/../public/user_info.txt")
      contents = contents.split(' ')
      client_id = contents.first
      private_key = contents.last
    end

Create Job instance

    job = GroupDocs::Signature::Envelope.new({:id => source_id})

Get document by job id

    documents = job.documents!({}, {:client_id => client_id, :private_key => private_key}).first

¶

Get guid from file
```
    guid = documents.file.guid
```

Create new file callback_info.txt and write the guid document

    out_file = File.new("#{File.dirname(__FILE__)}/../public/callback_info.txt", 'w')

White space is required

    out_file.write("#{guid}")
    out_file.close

  rescue Exception => e
    err = e.message
  end
end

POST request

post '/sample39/check' do
  begin
    result = nil
    i = 0
    for i in 1..10
      i +=1

Check is downloads folder exist

      if File.exist?("#{File.dirname(__FILE__)}/../public/callback_info.txt")
        result = File.read("#{File.dirname(__FILE__)}/../public/callback_info.txt")
        if result.nil? then break  end
      end
      sleep(5)
    end

Check result

    if result == 'Error'
      result = "File was not found. Looks like something went wrong."
    else
      result
    end

  rescue Exception => e
    err = e.message
  end
end

POST request

post '/sample39/postdata' do

  data = request.body.read

¶

Decode ajax data
```
  json_post_data = JSON.parse(data);
```
¶

Get Client ID
```
  clientId = json_post_data['userId'];
```

Get Private Key

  privateKey = json_post_data['privateKey'];

Get document for sign

  documents = json_post_data['documents'];

¶

Get signature file
```
  signers = json_post_data['signers'];
```

Documents local path

  document_path = "#{File.dirname(__FILE__)}/../public/downloads/#{documents[0]['name']}"
  signer_path = "#{File.dirname(__FILE__)}/../public/downloads/#{signers[0]['name']}.png"

Get base64 string

  base64_documents = documents[0]['data'].split(',').last
  base64_signers = signers[0]['data'].split(',').last

Write to the files decode base64 strings

  File.open(document_path, 'wb') do |f|
    f.write(Base64.strict_decode64(base64_documents))
  end

  File.open(signer_path, 'wb') do |f|
    f.write(Base64.strict_decode64(base64_signers))
  end

Set document for signing

  documents = GroupDocs::Storage::File.new(:name=>documents[0]['name'], :local_path=>document_path).to_document

Set signature

  signers = GroupDocs::Signature.new(:name=>signers[0]['name'], :image_path=>signer_path)
  signers.position = {top: 0.83319, left: 0.72171, width: 100, height: 40}

Make request to sign documnet

  signDocument = GroupDocs::Document.sign_documents!([documents], [signers], {}, {:client_id=>clientId, :private_key=>privateKey})
  sleep(5)

Get the document guid

  document = GroupDocs::Signature.sign_document_status!(signDocument, {:client_id=>clientId, :private_key=>privateKey})

¶

Get file GUID
```
  guid = document.guid
```

Create array with result data

  result = ['guid' => guid,'clientId' => clientId,'privateKey' => privateKey]

¶

Decode array to json and return json string to ajax request
```
  result.to_json
end
```

POST request

post '/sample-39-how-to-add-a-signature-to-a-document-and-re-direct-after-signing-with-groupdocs-widget' do

Set variables

  set :client_id, params[:clientId]
  set :private_key, params[:privateKey]
  set :name, params[:name]
  set :email, params[:email]
  set :callback, params[:callbackUrl]
  set :last_name, params[:lastName]
  set :base_path, params[:basePath]

Set download path

  downloads_path = "#{File.dirname(__FILE__)}/../public/downloads"

Remove all files from download directory or create folder if it not there

  if File.directory?(downloads_path)
    Dir.foreach(downloads_path) { |f| fn = File.join(downloads_path, f); File.delete(fn) if f != '.' && f != '..' }
  else
    Dir::mkdir(downloads_path)
  end

  begin

Check required variables

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

Prepare base path

    if settings.base_path.empty?
      base_path = 'https://api.groupdocs.com'
    elsif settings.base_path.match('/v2.0')
      base_path = settings.base_path.split('/v2.0')[0]
    else
      base_path = settings.base_path
    end

Configure your access to API server

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

Optionally specify API server and version

      groupdocs.api_server = base_path #Default is 'https://api.groupdocs.com'

    end

Write client and private key to the file for callback job

    if settings.callback[0]
      out_file = File.new("#{File.dirname(__FILE__)}/../public/user_info.txt", 'w')

White space is required

      out_file.write("#{settings.client_id} ")
      out_file.write("#{settings.private_key}")
      out_file.close
    end

Construct path

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

Open file

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

Make a request to API using client_id and private_key

    file = GroupDocs::Storage::File.upload!(file_path)
    document = file.to_document

Create envelope using user id and entered by user name

    envelope = GroupDocs::Signature::Envelope.new
    envelope.name = file.name
    envelope.email_subject = 'Sing this!'
    envelope.create!

¶

Add uploaded document to envelope
```
    envelope.add_document!(document)
```

Get role list for current user

    roles = GroupDocs::Signature::Role.get!

Create new recipient

    recipient = GroupDocs::Signature::Recipient.new
    recipient.email = settings.email
    recipient.first_name = settings.name
    recipient.last_name = settings.last_name
    recipient.role_id = roles.detect { |role| role.name == 'Signer' }.id

Add recipient to envelope

    recipient = envelope.add_recipient!(recipient)

¶

Get document id
```
    document = envelope.documents!()
```

Get field and add the location to field

    field = GroupDocs::Signature::Field.get!().detect { |f| f.type == :signature }
    field.location = {:location_x => 0.15, :location_y => 0.73, :location_w => 150, :location_h => 50, :page => 1}
    field.name = 'EMPLOYEE SIGNATURE'

Add field to envelope

    envelope.add_field!(field, document[0], recipient, {})

Send envelop

    envelope.send!({:callbackUrl => settings.callback})

Prepare to sign url

    iframe = "/signature2/signembed/#{envelope.id}/#{recipient.id}"

Construct result string

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

Generate iframe URL

    case base_path
      when 'https://stage-api-groupdocs.dynabic.com'
        iframe = "https://stage-api-groupdocs.dynabic.com#{url}"
      when 'https://dev-api-groupdocs.dynabic.com'
        iframe = "https://dev-apps.groupdocs.com#{url}"
      else
        iframe = "https://apps.groupdocs.com#{url}"
    end

Make iframe

    iframe = "<iframe id='downloadframe' src='#{iframe}' width='800' height='1000'></iframe>"


  rescue Exception => e
    err = e.message
  end

Set variables for template

  haml :sample39, :locals => {:userId => settings.client_id,
                              :privateKey => settings.private_key,
                              :callback => settings.callback,
                              :email => settings.email,
                              :name => settings.name,
                              :lastName => settings.last_name,
                              :iframe => iframe,
                              :err => err}
end