Ruby

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Last Update	09/18/2026
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Section 5: Metaprogramming

4Lessons ·
- 18: method_missing and Dynamic Methods
  
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Section 8: Ecosystem and Testing

3Lessons ·
- 31: Introduction to Rake Tasks
  
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Section 10: Interview Practice

2Lessons ·
- 38: Common Ruby Interview Questions on Metaprogramming
  
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Section 21: Ruby on Rails Deep Dive

8Lessons ·
- 81: Rails MVC Architecture In Depth
  
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- 82: Active Record Associations
  
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- 83: Active Record Validations and Callbacks
  
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- 88: Action Cable for WebSockets
  
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Section 25: Ruby Testing Deep Dive

5Lessons ·
- 102: RSpec Matchers In Depth
  
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Section 28: More Practice Exercises

4Lessons ·
- 115: Practice Exercise: Building a Simple ActiveRecord-Style ORM
  
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Section 30: Rails API Development

4Lessons ·
- 124: API Versioning in Rails
  
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Section 31: Rails Authentication and Authorization

4Lessons ·
- 128: Pundit for Authorization Policies
  
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Section 32: Rails Testing Deep Dive

4Lessons ·
- 134: Testing Rails Serializers
  
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Section 33: Rails Performance

4Lessons ·
- 138: Caching Strategies in Rails (Fragment, Russian Doll)
  
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Section 36: More Ruby Language Deep Dive

5Lessons ·
- 150: Pattern Matching with case/in (Ruby 3)
  
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Section 41: More Practice and Review

4Lessons ·
- 172: Practice Exercise: Building a Simple Event Sourcing System in Ruby
  
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Section 43: Ruby Interview Deep Dive

4Lessons ·
- 180: Common Ruby Interview Questions on Rails Request Lifecycle
  
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- 181: Common Ruby Interview Questions on Database Optimization
  
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- 182: Interview Practice: System Design Basics for Ruby Backend Roles
  
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Section 44: Ruby Background Processing Deep Dive

4Lessons ·
- 184: Resque as an Alternative to Sidekiq
  
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- 185: Scheduling Recurring Jobs with Whenever
  
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- 186: Handling Job Failures and Retries
  
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Section 45: Ruby GraphQL

3Lessons ·
- 189: N+1 Prevention in GraphQL with Batch Loading
  
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Section 48: Ruby gRPC and Protocol Buffers

4Lessons ·
- 198: Setting Up gRPC in Ruby
  
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- 199: Defining Protobuf Messages for Ruby Services
  
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- 200: Streaming RPCs in Ruby
  
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- 201: Error Handling in gRPC Services
  
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Section 49: Ruby Data Processing

5Lessons ·
- 204: ETL Pipelines in Ruby
  
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- 205: Working with Apache Kafka from Ruby
  
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Section 50: Ruby Search Integration

3Lessons ·
- 207: Elasticsearch Integration with Ruby
  
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Section 55: Ruby Monitoring and Observability

5Lessons ·
- 228: Structured Logging with Semantic Logger
  
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- 230: Distributed Tracing for Ruby Microservices
  
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Section 57: Ruby Security Deep Dive

5Lessons ·
- 236: Strong Parameters and Mass Assignment Protection
  
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Section 58: More Advanced Metaprogramming

5Lessons ·
- 242: Class Macros Like has_many Explained
  
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Section 59: More Final Projects

6Lessons ·
- 246: Building a Simple CRM Backend
  
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