sn10.go

package main

import (
	"fmt"
	"io"
)

func main() {
	pr, pw := io.Pipe()

	// Writing data to writer should be in a go-routine
	// because pipe is synchronous.
	go func() {
		defer pw.Close() // Important! To notify writing is done
		fmt.Fprintln(pw, "Hello Medium")
	}()

	// Code is blocked until someone writes to writer and closes it
	b, err := io.ReadAll(pr)

	if err != nil {
		panic(err)
	}
	// Optional: verify data
	fmt.Println(string(b))
}