dotnet-sdk/examples/Client/StateManagement/StateStoreExample.cs

57 lines
2.1 KiB
C#

// ------------------------------------------------------------------------
// Copyright 2021 The Dapr 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.
// ------------------------------------------------------------------------
using System;
using System.Threading;
using System.Threading.Tasks;
using Dapr.Client;
namespace Samples.Client
{
public class StateStoreExample : Example
{
private static readonly string stateKeyName = "widget";
private static readonly string storeName = "statestore";
public override string DisplayName => "Using the State Store";
public override async Task RunAsync(CancellationToken cancellationToken)
{
using var client = new DaprClientBuilder().Build();
var state = new Widget() { Size = "small", Color = "yellow", };
await client.SaveStateAsync(storeName, stateKeyName, state, cancellationToken: cancellationToken);
Console.WriteLine("Saved State!");
state = await client.GetStateAsync<Widget>(storeName, stateKeyName, cancellationToken: cancellationToken);
if (state == null)
{
Console.WriteLine("State not found in store");
}
else
{
Console.WriteLine($"Got State: {state.Size} {state.Color}");
}
await client.DeleteStateAsync(storeName, stateKeyName, cancellationToken: cancellationToken);
Console.WriteLine("Deleted State!");
}
private class Widget
{
public string? Size { get; set; }
public string? Color { get; set; }
}
}
}