| // Copyright 2017 The etcd Authors |
| // |
| // 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 namespace is a clientv3 wrapper that translates all keys to begin |
| // with a given prefix. |
| // |
| // First, create a client: |
| // |
| // cli, err := clientv3.New(clientv3.Config{Endpoints: []string{"localhost:2379"}}) |
| // if err != nil { |
| // // handle error! |
| // } |
| // |
| // Next, override the client interfaces: |
| // |
| // unprefixedKV := cli.KV |
| // cli.KV = namespace.NewKV(cli.KV, "my-prefix/") |
| // cli.Watcher = namespace.NewWatcher(cli.Watcher, "my-prefix/") |
| // cli.Lease = namespace.NewLease(cli.Lease, "my-prefix/") |
| // |
| // Now calls using 'cli' will namespace / prefix all keys with "my-prefix/": |
| // |
| // cli.Put(context.TODO(), "abc", "123") |
| // resp, _ := unprefixedKV.Get(context.TODO(), "my-prefix/abc") |
| // fmt.Printf("%s\n", resp.Kvs[0].Value) |
| // // Output: 123 |
| // unprefixedKV.Put(context.TODO(), "my-prefix/abc", "456") |
| // resp, _ = cli.Get("abc") |
| // fmt.Printf("%s\n", resp.Kvs[0].Value) |
| // // Output: 456 |
| // |
| package namespace |
