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Channel synchronization

Context

You can use channels to synchronize execution between goroutines. A blocking receive can wait for a goroutine to finish.

Example

Use a channel to wait for a goroutine to complete its work.

Code example

package main

import (
    "fmt"
    "time"
)

func worker(done chan bool) {
    fmt.Print("working...")
    time.Sleep(1 * time.Second)
    fmt.Println("done")
    done <- true
}

func main() {
    done := make(chan bool)
    go worker(done)
    <-done // wait
}

Output

working...done

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