How can I handle cancellation in Golang?

How can I handle cancellation in Golang?

In Golang, you can handle cancellation using the context package. It allows you to create a context that can be canceled.

Can you show me a code example?

Sure! Here's a simple example:

package main

import (
    "context"
    "fmt"
    "time"
)

func main() {
    ctx, cancel := context.WithCancel(context.Background())
    defer cancel()

    go func() {
        time.Sleep(2 * time.Second)
        cancel() // Cancel the context after 2 seconds
    }()

    select {
    case <-ctx.Done():
        fmt.Println("Operation canceled")
    }
}

What happens if I don't use context for cancellation?

If you don't use context for cancellation, your goroutines may continue running even when you want to stop them, leading to resource leaks.