/// <summary> /// 创建Client节点树 /// </summary> /// <returns></returns> private static async Task CreateClientTree() { if (m_client != null) { //移除Client所有节点 await m_client.DeleteNodeAsync("Client/"); await m_client.CreateNodeAsync("Client/Client0", "OffLine"); await m_client.CreateNodeAsync("Client/Client1", "OffLine"); await m_client.CreateNodeAsync("Client/Client2", "OffLine"); } }
public async Task <IActionResult> Get() { // return new string[] { "value1", "value2" }; var __options = new EtcdClientOpitions { Urls = new string[] { "http://etcd:2379" } }; EtcdClient etcdClient = new EtcdClient(__options); await etcdClient.CreateNodeAsync("/key", "my value"); var _value = await etcdClient.GetNodeValueAsync("/key"); return(Ok(_value)); }
static async Task DoSample() { EtcdClientOpitions options = new EtcdClientOpitions() { #if NET45 // TODO: This is optional, having HTTPS setup could make this work in .NET Core as well, but it's not tested for now Urls = new string[] { "https://etcd0.em", "https://etcd1.em", "https://etcd2.em" }, #else Urls = new string[] { "http://*****:*****@"client.p12"), // client cerificate JsonDeserializer = new NewtonsoftJsonDeserializer(), }; EtcdClient etcdClient = new EtcdClient(options); string key = "/my/key"; string value; // query the value of the node using GetNodeValueAsync try { value = await etcdClient.GetNodeValueAsync(key); Console.WriteLine("The value of `{0}` is `{1}`", key, value); } catch (EtcdCommonException.KeyNotFound) { Console.WriteLine("Key `{0}` does not exist", key); } // update the value using SetNodeAsync EtcdResponse resp = await etcdClient.SetNodeAsync(key, "some value"); Console.WriteLine("Key `{0}` is changed, modifiedIndex={1}", key, resp.Node.ModifiedIndex); // query the node using GetNodeAsync resp = await etcdClient.GetNodeAsync(key, ignoreKeyNotFoundException : true); if (resp == null || resp.Node == null) { Console.WriteLine("Key `{0}` does not exist", key); } else { Console.WriteLine("The value of `{0}` is `{1}`", key, resp.Node.Value); } ////////////////////////////////////////////////////////// List <Task <EtcdResponse> > tasks = new List <Task <EtcdResponse> >(); key = "/in-order-queue"; // start monitoring the expire event WatchChanges(etcdClient, key); // create 5 in-order nodes, TTL = 3 second for (int i = 0; i < 5; i++) { tasks.Add(etcdClient.CreateInOrderNodeAsync(key, i.ToString(), ttl: 3)); } await Task.WhenAll(tasks); // list the in-order nodes resp = await etcdClient.GetNodeAsync(key, false, recursive : true, sorted : true); if (resp.Node.Nodes != null) { foreach (var node in resp.Node.Nodes) { Console.WriteLine("`{0}` = {1}", node.Key, node.Value); } } ///////////////////////////////////////////////////////////// key = "/my/cas-test"; value = Guid.NewGuid().ToString(); try { resp = await etcdClient.CreateNodeAsync(key, value, null, dir : false); Console.WriteLine("Key `{0}` is created with value {1}", key, value); } catch (EtcdCommonException.NodeExist) { Console.WriteLine("Key `{0}` already exists", key); } long prevIndex = 1; try { resp = await etcdClient.CompareAndSwapNodeAsync(key, value, "new value"); Console.WriteLine("Key `{0}` is updated to `{1}`", key, resp.Node.Value); prevIndex = resp.Node.ModifiedIndex; } catch (EtcdCommonException.KeyNotFound) { Console.WriteLine("Key `{0}` does not exists", key); } catch (EtcdCommonException.TestFailed) { Console.WriteLine("Key `{0}` can not be updated because the supplied previous value is incorrect", key); } try { resp = await etcdClient.CompareAndSwapNodeAsync(key, prevIndex, "new value2"); Console.WriteLine("Key `{0}` is updated to `{1}`", key, resp.Node.Value); } catch (EtcdCommonException.KeyNotFound) { Console.WriteLine("Key `{0}` does not exists", key); } catch (EtcdCommonException.TestFailed) { Console.WriteLine("Key `{0}` can not be updated because the supplied previous index is incorrect", key); } try { resp = await etcdClient.CompareAndDeleteNodeAsync(key, prevIndex + 1); Console.WriteLine("Key `{0}` is deleted", key); } catch (EtcdCommonException.KeyNotFound) { Console.WriteLine("Key `{0}` does not exists", key); } catch (EtcdCommonException.TestFailed) { Console.WriteLine("Key `{0}` can not be deleted because the supplied previous index is incorrect", key); } if (prevIndex == 1) // the previous CAS failed { try { resp = await etcdClient.CompareAndDeleteNodeAsync(key, "new value2"); Console.WriteLine("Key `{0}` is deleted", key); } catch (EtcdCommonException.KeyNotFound) { Console.WriteLine("Key `{0}` does not exists", key); } catch (EtcdCommonException.TestFailed) { Console.WriteLine("Key `{0}` can not be deleted because the supplied previous value is incorrect", key); etcdClient.DeleteNodeAsync(key, ignoreKeyNotFoundException: true).Wait(); } } }