Go Lang Advanced

Target Audience: Developers with a solid understanding of Go fundamentals

Course Objectives:

• Master advanced Go programming techniques and idioms.

• Build robust, efficient, and maintainable Go applications.

• Gain practical experience working with concurrency and communication patterns.

• Deepen your understanding of testing, debugging, and performance optimization in Go.

Course Length: 2 Days

Module 1: Advanced Language Features and Techniques

• Idiomatic Go:

  • Best practices for writing clean, maintainable, and efficient Go code.

  • Understanding idiomatic constructs and conventions in Go.

  • Tools and techniques for enforcing code style and quality (e.g., linters, gofmt).

• Methods and Interfaces:

  • Advanced concepts in method design and usage (e.g., pointer receivers, embedded interfaces).

  • Interface implementation and type assertions for dynamic behavior.

  • Encapsulation principles and techniques for data protection and access control.

• Advanced Functions and Methods:

  • Deep dive into function closures and their applications (e.g., capturing variables, creating private functions).

  • Exploring advanced function patterns like variadic functions (handling multiple arguments) and anonymous functions (functions defined without a name).

  • Leveraging functions and interfaces for cleaner code organization and improved modularity.

Module 2: Concurrency, Communication, and Advanced Topics

• CSP (Communicating Sequential Processes) and Goroutines:

  • Advanced concurrency concepts using goroutines (lightweight threads) and channels (communication primitives).

  • Synchronization primitives like channels and locks (mutexes) for coordinating access to shared resources.

  • Building robust concurrent applications in Go with proper handling of race conditions.

• Channels in Depth:

  • Exploring different channel patterns:

    • Buffered channels for handling a limited number of messages without blocking.

    • Directional channels for enforcing unidirectional communication (send-only or receive-only).

  • Understanding rendezvous communication (synchronization between sender and receiver) and channel synchronization.

  • Techniques for handling deadlocks (avoiding program stalls) and closing channels gracefully.

• Modules:

  • Migrating to Go modules for dependency management (replacing the older vendor approach).

  • Publishing and maintaining your own Go modules for sharing code with others.

  • Keeping dependencies compatible across versions to avoid conflicts.

• Context:

  • The importance of context for controlling code execution flow (cancellation, deadlines).

  • Using the context package for managing cancellation, deadlines, and values that should be propagated through the application.

  • Leveraging context for cleaner code structure and improved error handling.

Module 3: Testing and Performance Optimization

• Testing in Go:

  • Introduction to Test-Driven Development (TDD) and Behavior-Driven Development (BDD) methodologies for writing tests first.

  • Writing effective unit tests using the testing package to ensure code correctness.

  • Advanced testing techniques like mocking (creating simulated dependencies) and table-driven tests (testing multiple scenarios).

• Performance Optimization:

  • Identifying and resolving performance bottlenecks in Go applications (e.g., memory leaks, inefficient algorithms).

  • Locating memory leaks and resource contention issues using profiling tools.

  • Utilizing profiling tools like pprof to measure resource usage (CPU, memory) and identify performance bottlenecks.

  • Debugging techniques and tools for troubleshooting complex Go programs (including Delve, a debugger specifically designed for Go).

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