main.go

package main

import (
    "fmt"
)

func main() {
    out := make(chan string, 2)
    in := make(chan string, 2)

    go handle(in, out)

    in <- "http://www.facebook.com"
    in <- "http://www.github.com"
    in <- "http://scotch.io"
    close(in)

    for link := range out {
        fmt.Println(link)
    }
}

func handle(in <-chan string, out chan<- string) {

    out <- "http://yahoo.com"

    for i := range in {
        fmt.Println(i)
    }

    out <- "http://google.com"
    close(out)
}