Section 12 of 12

Advanced Patterns

Explore advanced Go patterns and best practices

Course Progress

Section 12 of 12

100% complete

Tutorials

Design Patterns

Master common design patterns in Go for building scalable applications.

Code Examples

Singleton Patterngo
package main

import (
    "sync"
)

type Singleton struct {
    value string
}

var instance *Singleton
var once sync.Once

func GetInstance() *Singleton {
    once.Do(func() {
        instance = &Singleton{value: "singleton"}
    })
    return instance
}
Factory Patterngo
package main

type Logger interface {
    Log(message string)
}

type ConsoleLogger struct{}

func (cl ConsoleLogger) Log(msg string) {
    println(msg)
}

type FileLogger struct {
    filename string
}

func (fl FileLogger) Log(msg string) {
    // Log to file
}

func NewLogger(logType string) Logger {
    switch logType {
    case "console":
        return ConsoleLogger{}
    case "file":
        return FileLogger{filename: "log.txt"}
    default:
        return ConsoleLogger{}
    }
}

Exercises

Observer Pattern

Implement the observer pattern for event notification

ADVANCED

Starter Code:

package main

import "fmt"

type Observer interface {
    Update(message string)
}

type Subject struct {
    // TODO: Implement observer list
}

func main() {
    // TODO: Implement and test observer pattern
}

Hands-on Project

Event Streaming System

Build an event streaming system with publisher/subscriber pattern

ADVANCED

Learning Objectives

  • >Advanced patterns
  • >Event-driven architecture
  • >Scalability

Project Tips

  • > Start by understanding the requirements
  • > Break the project into smaller tasks
  • > Test your code frequently as you build
  • > Add error handling throughout your code
  • > Consider edge cases and validate inputs
  • > Document your code with comments
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