Function ExampleWatcher_watchWithRange

client/v3/example_watch_test.go:82–122

()

}

func ExampleWatcher_watchWithRange() {
	forUnitTestsRunInMockedContext(mockWatcher_watchWithRange, func() {
		cli, err := clientv3.New(clientv3.Config{
			Endpoints:   exampleEndpoints(),
			DialTimeout: dialTimeout,
		})
		if err != nil {
			log.Fatal(err)
		}
		defer cli.Close()

		// watches within ['foo1', 'foo4'), in lexicographical order
		rch := cli.Watch(context.Background(), "foo1", clientv3.WithRange("foo4"))

		go func() {
			cli.Put(context.Background(), "foo1", "bar1")
			cli.Put(context.Background(), "foo5", "bar5")
			cli.Put(context.Background(), "foo2", "bar2")
			cli.Put(context.Background(), "foo3", "bar3")
		}()

		i := 0
		for wresp := range rch {
			for _, ev := range wresp.Events {
				fmt.Printf("%s %q : %q\n", ev.Type, ev.Kv.Key, ev.Kv.Value)
				i++
				if i == 3 {
					// After 3 messages we are done.
					cli.Delete(context.Background(), "foo", clientv3.WithPrefix())
					cli.Close()
					return
				}
			}
		}
	})

	// Output:
	// PUT "foo1" : "bar1"
	// PUT "foo2" : "bar2"
	// PUT "foo3" : "bar3"
}

func mockWatcher_watchWithProgressNotify() {
	fmt.Println(`wresp.IsProgressNotify: true`)