2016-05-13 06:50:58 +03:00
|
|
|
// Copyright 2016 The etcd Authors
|
2016-02-23 03:39:05 +03:00
|
|
|
//
|
|
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
// you may not use this file except in compliance with the License.
|
|
|
|
// You may obtain a copy of the License at
|
|
|
|
//
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
//
|
|
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
// See the License for the specific language governing permissions and
|
|
|
|
// limitations under the License.
|
|
|
|
|
|
|
|
package clientv3_test
|
|
|
|
|
|
|
|
import (
|
|
|
|
"fmt"
|
|
|
|
"log"
|
|
|
|
|
|
|
|
"github.com/coreos/etcd/clientv3"
|
2016-03-23 03:10:28 +03:00
|
|
|
"golang.org/x/net/context"
|
2016-02-23 03:39:05 +03:00
|
|
|
)
|
|
|
|
|
|
|
|
func ExampleWatcher_watch() {
|
|
|
|
cli, err := clientv3.New(clientv3.Config{
|
|
|
|
Endpoints: endpoints,
|
|
|
|
DialTimeout: dialTimeout,
|
|
|
|
})
|
|
|
|
if err != nil {
|
|
|
|
log.Fatal(err)
|
|
|
|
}
|
|
|
|
defer cli.Close()
|
|
|
|
|
2016-02-25 09:39:43 +03:00
|
|
|
rch := cli.Watch(context.Background(), "foo")
|
2016-02-23 03:39:05 +03:00
|
|
|
for wresp := range rch {
|
|
|
|
for _, ev := range wresp.Events {
|
|
|
|
fmt.Printf("%s %q : %q\n", ev.Type, ev.Kv.Key, ev.Kv.Value)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// PUT "foo" : "bar"
|
|
|
|
}
|
|
|
|
|
2016-04-15 09:44:23 +03:00
|
|
|
func ExampleWatcher_watchWithPrefix() {
|
2016-02-23 03:39:05 +03:00
|
|
|
cli, err := clientv3.New(clientv3.Config{
|
|
|
|
Endpoints: endpoints,
|
|
|
|
DialTimeout: dialTimeout,
|
|
|
|
})
|
|
|
|
if err != nil {
|
|
|
|
log.Fatal(err)
|
|
|
|
}
|
|
|
|
defer cli.Close()
|
|
|
|
|
2016-02-25 09:39:43 +03:00
|
|
|
rch := cli.Watch(context.Background(), "foo", clientv3.WithPrefix())
|
2016-02-23 03:39:05 +03:00
|
|
|
for wresp := range rch {
|
|
|
|
for _, ev := range wresp.Events {
|
|
|
|
fmt.Printf("%s %q : %q\n", ev.Type, ev.Kv.Key, ev.Kv.Value)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// PUT "foo1" : "bar"
|
|
|
|
}
|
2016-03-04 22:56:59 +03:00
|
|
|
|
2016-04-15 09:44:23 +03:00
|
|
|
func ExampleWatcher_watchWithRange() {
|
|
|
|
cli, err := clientv3.New(clientv3.Config{
|
|
|
|
Endpoints: endpoints,
|
|
|
|
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"))
|
|
|
|
for wresp := range rch {
|
|
|
|
for _, ev := range wresp.Events {
|
|
|
|
fmt.Printf("%s %q : %q\n", ev.Type, ev.Kv.Key, ev.Kv.Value)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// PUT "foo1" : "bar"
|
|
|
|
// PUT "foo2" : "bar"
|
|
|
|
// PUT "foo3" : "bar"
|
|
|
|
}
|
|
|
|
|
|
|
|
func ExampleWatcher_watchWithProgressNotify() {
|
2016-03-04 22:56:59 +03:00
|
|
|
cli, err := clientv3.New(clientv3.Config{
|
|
|
|
Endpoints: endpoints,
|
|
|
|
DialTimeout: dialTimeout,
|
|
|
|
})
|
|
|
|
if err != nil {
|
|
|
|
log.Fatal(err)
|
|
|
|
}
|
|
|
|
|
|
|
|
rch := cli.Watch(context.Background(), "foo", clientv3.WithProgressNotify())
|
|
|
|
wresp := <-rch
|
|
|
|
fmt.Printf("wresp.Header.Revision: %d\n", wresp.Header.Revision)
|
|
|
|
fmt.Println("wresp.IsProgressNotify:", wresp.IsProgressNotify())
|
|
|
|
// wresp.Header.Revision: 0
|
|
|
|
// wresp.IsProgressNotify: true
|
|
|
|
}
|