package main

import (

    "log"

    "time"

    "golang.org/x/net/context"

    "github.com/coreos/etcd/client"

)

func main() {

    cfg := client.Config{

        Endpoints:               []string{"http://127.0.0.1:2379"},

        Transport:               client.DefaultTransport,

        // set timeout per request to fail fast when the target endpoint is unavailable

        HeaderTimeoutPerRequest: time.Second,

    }

    c, err := client.New(cfg)

    if err != nil {

        log.Fatal(err)

    }

    kapi := client.NewKeysAPI(c)

    // set "/foo" key with "bar" value

    log.Print("Setting '/foo' key with 'bar' value")

    resp, err := kapi.Set(context.Background(), "/foo", "bar", nil)

    if err != nil {

        log.Fatal(err)

    } else {

        // print common key info

        log.Printf("Set is done. Metadata is %q\n", resp)

    }

    // get "/foo" key's value

    log.Print("Getting '/foo' key value")

    resp, err = kapi.Get(context.Background(), "/foo", nil)

    if err != nil {

        log.Fatal(err)

    } else {

        // print common key info

        log.Printf("Get is done. Metadata is %q\n", resp)

        // print value

        log.Printf("%q key has %q value\n", resp.Node.Key, resp.Node.Value)

    }

}