🚀 Golang Live Coding Practice Suite (Clean Starter Edition)

Welcome to the Golang Live Coding Practice Suite repository!

This project contains 12 structured modules covering Go concurrency, data architecture, memory optimization, distributed systems, networking protocols, event streaming outbox patterns, and microservice resilience. It is designed to help software engineers prepare for technical interviews, live coding assessments, and master production-grade Go patterns.

All modules in this practice folder are formatted as Clean Starter Code (complete with interfaces, data types, and // TODO stubs) without solution implementations, allowing you to practice independently.

---

🗂️ Directory & Module Overview

#	Module Folder	Key Topics & Algorithms	Starter File
01	01-goroutines-and-channels	Fan-Out/Fan-In Pipeline, Token Bucket Rate Limiter, Thread-Safe Pub-Sub Event Bus	pipeline.go
02	02-sync-and-atomic	Singleflight Cache (Anti-Thundering Herd), Sharded Map, Weighted Semaphore, ErrGroup	sync_tasks.go
03	03-graceful-shutdown	OS Signals (SIGINT/SIGTERM), HTTP & Worker Draining, Timeout Cascade	server.go
04	04-data-structures	Generic LRU Cache, Circular Ring Buffer Queue, Concurrent Trie (Prefix Tree)	datastructures.go
05	05-sql-and-transactions	ACID Bank Transfer, Pessimistic Locking (SELECT FOR UPDATE), Deadlock Prevention	sql_tasks.go
06	06-performance-and-optimization	Zero-Alloc Log Formatter (sync.Pool), Struct Field Alignment & Memory Padding	opt_tasks.go
07	07-design-patterns	Functional Options Pattern, Custom Domain Error Wrapping (Unwrap), Middleware Chain	patterns.go
08	08-distributed-primitives	Consistent Hashing Ring (Virtual Nodes + Binary Search), Sliding Window Limiter, Fencing Token Lock	dist_tasks.go
09	09-networking-and-protocols	TCP Length-Prefixed Binary Frame Codec, Round-Robin Load Balancer with Health Check	net_tasks.go
10	10-advanced-concurrency-challenges	Bounded Multi-Priority Task Queue (High/Med/Low), Goroutine Leak Detector	advanced.go
11	11-event-streaming-and-outbox	Transactional Outbox Relay Worker, Idempotent Consumer & Dead Letter Queue (DLQ)	outbox.go
12	12-microservices-and-resilience	Circuit Breaker State Machine, W3C Trace Context Propagator (traceparent)	resilience.go

---

📖 How to Use This Practice Suite

1. Read Module Guidelines

Each module folder contains a dedicated README.md detailing:

• Concept & Real-World Background
• Logical Flow & Step-by-Step Algorithm
• Input / Expected Output Examples & Execution Diagrams
• Edge Cases & Critical Considerations

2. Implement Starter Code

Open the primary Go challenge file in the module folder (e.g. 01-goroutines-and-channels/pipeline.go) and complete the functions marked with:

// TODO: Implement ...

3. Run Unit Tests & Verification

Run tests in your target module directory using the terminal:

# Navigate to module directory
cd 01-goroutines-and-channels

# Run unit tests
go test -v ./...

# Run race detector (Highly recommended for concurrent code!)
go test -v -race ./...

# Run memory allocation benchmarks (Module 06)
go test -bench=. -benchmem

When all tests report PASS, your implementation is correct! Happy coding! 🎯