Initial commit of GitHub Apps installation demo

GitHub.Octokit.sln

@@ -14,6 +14,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "test\Tests.csproj", "{7EF0200D-9F10-4A77-8F73-3E26D3EBD326}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "cli", "cli\cli.csproj", "{3A6900D7-23D6-4AE5-B76A-76A05CD336F1}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU

cli/Program.cs

@@ -0,0 +1,50 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using GitHub;
+using GitHub.Octokit.Authentication;
+using GitHub.Octokit.Client;
+using Org.BouncyCastle.Ocsp;
+
+// Use GitHubJwt library to create the GitHubApp Jwt Token using our private certificate PEM file
+var generator = new GitHubJwt.GitHubJwtFactory(
+    new GitHubJwt.FilePrivateKeySource("/home/kfcampbell/github/dev/dotnet-sdk/kfcampbell-terraform-provider.2024-04-30.private-key.pem"),
+    new GitHubJwt.GitHubJwtFactoryOptions
+    {
+        AppIntegrationId = 131977, // The GitHub App Id
+        ExpirationSeconds = 600 // 10 minutes is the maximum time allowed
+    }
+);
+var jwtToken = generator.CreateEncodedJwtToken();
+
+var installationId = 20570954;
+
+var client = new HttpClient();
+client.DefaultRequestHeaders.Add("Accept", "application/vnd.github+json");
+client.DefaultRequestHeaders.Add("X-GitHub-Api-Version", "2022-11-28");
+client.DefaultRequestHeaders.Add("User-Agent", "csharp-dummy-app-example");
+client.DefaultRequestHeaders.Add("Authorization", $"Bearer {jwtToken}");
+
+var resp = await client.PostAsync($"https://api.github.com/app/installations/{installationId}/access_tokens", null);
+var body = await resp.Content.ReadAsStringAsync();
+
+if (!resp.IsSuccessStatusCode) {
+    Console.WriteLine($"Error: {resp.StatusCode}");
+    Console.WriteLine($"Body: {body}");
+    return;
+}
+
+var respBody = JsonSerializer.Deserialize<Dictionary<string, object>>(body);
+var tokenElement = (JsonElement)respBody["token"];
+var token = tokenElement.ValueKind == JsonValueKind.String ? tokenElement.GetString() : "";
+
+// var token = Environment.GetEnvironmentVariable("GITHUB_TOKEN") ?? "";
+var adapter = RequestAdapter.Create(new TokenAuthenticationProvider("Octokit.Gen", token));
+// adapter.BaseUrl = "http://api.github.localhost:1024";
+var gitHubClient = new GitHubClient(adapter);
+
+try {
+    var response = await gitHubClient.Installation.Repositories.GetAsync();
+    response.Repositories.ForEach(repo => Console.WriteLine(repo.FullName));
+} catch (Exception e) {
+    Console.WriteLine(e.Message);
+}

cli/cli.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  <PropertyGroup>
+  <RestoreSources>$(RestoreSources);../src/bin/Debug;https://api.nuget.org/v3/index.json</RestoreSources>
+</PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="GitHubJwt" Version="0.0.6" />
+    <PackageReference Include="Microsoft.Kiota.Abstractions" Version="1.8.4" />
+    <PackageReference Include="Microsoft.Kiota.Http.HttpClientLibrary" Version="1.4.0" />
+    <PackageReference Include="Microsoft.Kiota.Serialization.Form" Version="1.1.6" />
+    <PackageReference Include="Microsoft.Kiota.Serialization.Json" Version="1.2.3" />
+    <PackageReference Include="Microsoft.Kiota.Serialization.Multipart" Version="1.1.4" />
+    <PackageReference Include="Microsoft.Kiota.Serialization.Text" Version="1.1.5" />
+    <PackageReference Include="Microsoft.Kiota.Authentication.Azure" Version="1.1.5" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="../src/GitHub.Octokit.SDK.csproj" />
+  </ItemGroup>
+</Project>