From 9961647adca6602d0ed9be0a0bd6fe6d9fb286dd Mon Sep 17 00:00:00 2001
From: Pete Gautier <pete@momentohq.com>
Date: Fri, 8 Sep 2023 13:59:03 -0700
Subject: [PATCH] chore: adding disposable token generation example

---
 .../DisposableTokens/DisposableTokens.csproj  | 21 ++++++++++
 examples/DisposableTokens/Program.cs          | 42 +++++++++++++++++++
 examples/DisposableTokens/README.md           |  3 ++
 3 files changed, 66 insertions(+)
 create mode 100644 examples/DisposableTokens/DisposableTokens.csproj
 create mode 100644 examples/DisposableTokens/Program.cs
 create mode 100644 examples/DisposableTokens/README.md

diff --git a/examples/DisposableTokens/DisposableTokens.csproj b/examples/DisposableTokens/DisposableTokens.csproj
new file mode 100644
index 00000000..50fc400d
--- /dev/null
+++ b/examples/DisposableTokens/DisposableTokens.csproj
@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Remove="Momento.Sdk" />
+    <None Remove="Microsoft.SourceLink.GitHub" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Momento.Sdk" Version="1.20.0" />
+  </ItemGroup>
+</Project>
diff --git a/examples/DisposableTokens/Program.cs b/examples/DisposableTokens/Program.cs
new file mode 100644
index 00000000..b901bf3d
--- /dev/null
+++ b/examples/DisposableTokens/Program.cs
@@ -0,0 +1,42 @@
+using System;
+using Momento.Sdk;
+using Momento.Sdk.Auth;
+using Momento.Sdk.Auth.AccessControl;
+using Momento.Sdk.Config;
+using Momento.Sdk.Responses;
+
+ICredentialProvider authProvider = new EnvMomentoTokenProvider("MOMENTO_AUTH_TOKEN");
+
+IAuthClient client = new AuthClient(AuthConfigurations.Default.Latest(), authProvider);
+var scope = new DisposableTokenScope(Permissions: new List<DisposableTokenPermission>
+{
+    new DisposableToken.CacheItemPermission(
+        CacheRole.ReadWrite,
+        CacheSelector.ByName("cache"),
+        CacheItemSelector.AllCacheItems
+    ),
+    new DisposableToken.CachePermission(
+        CacheRole.ReadOnly,
+        CacheSelector.ByName("topsecret")
+    ),
+    new DisposableToken.TopicPermission(
+        TopicRole.PublishSubscribe,
+        CacheSelector.ByName("cache"),
+        TopicSelector.ByName("example-topic")
+    )
+});
+var tokenResponse = await client.GenerateDisposableTokenAsync(
+    scope,
+    ExpiresIn.Minutes(5)
+);
+
+if (tokenResponse is GenerateDisposableTokenResponse.Success token)
+{
+    Console.WriteLine("The generated disposable token is: " + token.AuthToken);
+    Console.WriteLine("The token endpoint is: " + token.Endpoint);
+    Console.WriteLine("The token expires at (epoch timestamp): " + token.ExpiresAt.Epoch());
+}
+else if (tokenResponse is GenerateDisposableTokenResponse.Error err)
+{
+    Console.WriteLine("Error generating disposable token: " + err.Message);
+}
diff --git a/examples/DisposableTokens/README.md b/examples/DisposableTokens/README.md
new file mode 100644
index 00000000..afffe023
--- /dev/null
+++ b/examples/DisposableTokens/README.md
@@ -0,0 +1,3 @@
+<img src="https://docs.momentohq.com/img/logo.svg" alt="logo" width="400"/>
+
+# Disposable Tokens Example