mirror of
https://github.com/etcd-io/etcd.git
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61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
/*
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Copyright 2014 CoreOS, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package client
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import (
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"errors"
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"fmt"
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"time"
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)
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var (
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ErrUnavailable = errors.New("client: no available etcd endpoints")
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ErrNoLeader = errors.New("client: no leader")
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ErrKeyNoExist = errors.New("client: key does not exist")
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ErrKeyExists = errors.New("client: key already exists")
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)
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type Client interface {
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Create(key, value string, ttl time.Duration) (*Response, error)
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Get(key string) (*Response, error)
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Watch(key string, idx uint64) Watcher
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RecursiveWatch(key string, idx uint64) Watcher
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}
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type Watcher interface {
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Next() (*Response, error)
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}
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type Response struct {
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Action string `json:"action"`
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Node *Node `json:"node"`
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PrevNode *Node `json:"prevNode"`
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}
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type Nodes []*Node
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type Node struct {
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Key string `json:"key"`
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Value string `json:"value"`
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Nodes Nodes `json:"nodes"`
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ModifiedIndex uint64 `json:"modifiedIndex"`
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CreatedIndex uint64 `json:"createdIndex"`
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}
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func (n *Node) String() string {
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return fmt.Sprintf("{Key: %s, CreatedIndex: %d, ModifiedIndex: %d}", n.Key, n.CreatedIndex, n.ModifiedIndex)
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}
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