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# Jets: The Ruby Serverless Framework

In his presentation at Balkan Ruby 2019, Tung Nguyen introduces "Jets: The Ruby Serverless Framework," which he developed to enable native use of Ruby in serverless applications. He shares insights on AWS's Lambda and how Jets provides a simplified way to create serverless applications using Ruby.

## Key Points Discussed:
- **Introduction to Serverless Frameworks:**  
  - The concept of serverless computing and the significance of AWS Lambda in the cloud ecosystem.  
  - AWS's announcement of Ruby support in Lambda highlighted the need for Ruby developers to have a robust serverless framework.

- **Benefits of AWS Lambda:**  
  - Avoidance of server management, allowing developers to focus primarily on writing code.  
  - Automatic scaling of functions without manual configuration.
  - Economic model of `pay-per-request` offering significant advantages, especially for startups and personal projects.

- **Serverless Architecture Components:**  
  - Description of foundational AWS services like Lambda, API Gateway as a routing service, and CloudWatch used for scheduling.  
  - Explanation of DynamoDB and RDS Aurora for database management within serverless applications.

- **Common Challenges and Considerations:**  
  - Addressing limitations such as RAM and code size constraints in AWS Lambda.  
  - The cold start problem in Lambda, illustrated with examples of how to mitigate it through optimal RAM allocation and pre-warming functions.

- **The Jets Framework:**  
  - How Jets simplifies the creation of serverless applications by adopting a Ruby-centric approach rather than a configuration-heavy framework like YAML.
  - Jets efficiently converts Ruby methods into Lambda functions, aiding the development of traditional MVC architectures even in a serverless environment.
  
- **Development Process and Best Practices:**  
  - Guidance on how to set up a serverless application using Jets, emphasizing the structure, including app controllers, models, and views.
  - The importance of local testing and continuous integration in the serverless development lifecycle.

## Conclusions and Takeaways:
- Tung emphasizes that Jets enhances Ruby developers' experience in serverless architecture, making it user-friendly and intuitive.
- The future of serverless development with Ruby looks bright, offering robust solutions that cater to dynamic, scalable application needs.
- Engaging with the evolving serverless ecosystem is critical for maximizing development efficiency and innovation.

Tung encourages developers to embrace the simplicity and power of Jets for developing Ruby-based serverless applications.

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