# Removal of Ruby whitelist for SDK

Following the migration of custom connector code execution to isolated containers, Ruby whitelisting is removed from the connector SDK. This change significantly expands the range of capabilities SDK developers can use within the platform. Developers can now leverage the full functionality of Ruby 2.7, including built-in libraries and Ruby gems available in the SDK container.

# Key capabilities

With the removal of Ruby whitelisting, developers can now access the full functionality of Ruby 2.7, including built-in libraries and Ruby gems available in the SDK container.

• Access to Ruby 2.7 standard methods

  Developers now have access to the full range of Ruby 2.7 standard methods. Developers can also use Ruby’s require method to import built-in libraries, such as JSON, CSV, socket, and others.

• Pre-installed Ruby Gems

  Developers can now directly use a selection of pre-installed Ruby gems without restrictions:

  • activesupport (5.2.8.1)
  • aws-sigv4 (1.2.4)
  • charlock_holmes (0.7.7)
  • concurrent-ruby (1.2.3)
  • gyoku (1.3.1)
  • i18n (0.9.5)
  • jwt (2.1.0)
  • loofah (2.21.3)
  • mime-types (3.5.2)
  • nokogiri (1.15.6)
  • rails-html-sanitizer (1.4.4)
  • rest-client (2.1.0)
  • ruby_rncryptor (3.0.2)

• TCP sockets

  Developers can now leverage TCP sockets for low-level TCP connections. Learn more (opens new window).

  • Example use case: Implement MQTP protocol over UDP or WebSocket connections.

• Classes and modules

  Developers can now define classes and modules, improving code reusability, organization, and maintainability.

• Dynamic code execution

  Using the eval method, developers can now dynamically load and execute code. Code can be generated on the fly based on runtime data and executed immediately.

• Multi-threaded and concurrent code

  Developers can now write multi-threaded and concurrent code.

# Example connector ideas

• E-commerce data scraper

  A connector that uses nokogiri to scrape product data from various e-commerce websites, transforms the data using gyoku, and uploads it to a central database for analysis.

• Secure API Gateway

  A connector that uses jwt for secure API authentication and rest-client to interact with multiple third-party APIs, aggregating data and providing a unified interface.

• Amazon S3 file manager

  A connector that uses aws-sigv4 to securely upload and download files from Amazon S3, with MIME type handling using mime-types to ensure correct file processing.

• HTML sanitization

  A connector that uses loofah and rails-html-sanitizer to sanitize HTML content, removing potentially harmful elements and ensuring data integrity.

• Real-time data processor

  A connector that uses concurrent-ruby to process multiple data streams in parallel, such as Internet of Things sensor data, performing real-time analysis and actions.

• Concurrent processing

  A connector that uses concurrent-ruby to handle concurrent tasks, improving the performance and responsiveness of connectors.

• JWT authentication

  A connector that uses the jwt gem to create and verify JSON web tokens for secure API authentication.

• XML and HTML data handling

  A connector that uses nokogiri and gyoku for parsing, transforming, and generating XML and HTML data. This can be useful for integrating with systems that use XML-based APIs or for web scraping tasks.