part of last commit

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Open Harbor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

OpenHarbor.JwtTokenManager.Abstractions/HttpClientExtensions.cs

@@ -0,0 +1,12 @@
+using System.Net.Http.Headers;
+
+namespace OpenHarbor.JwtTokenManager.Abstractions;
+
+public static class HttpClientExtensions
+{
+  public static HttpClient SetJwtAccessToken(this HttpClient httpClient, JwtTokenManagerResult token)
+  {
+    httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(token.TokenType.ToString(), token.AccessToken);
+    return httpClient;
+  }
+}

OpenHarbor.JwtTokenManager.Abstractions/OpenHarbor.JwtTokenManager.Abstractions.csproj

@@ -6,6 +6,10 @@
     <Nullable>enable</Nullable>
     <Authors>Mathias Beaulieu-Duncan</Authors>
     <PackageIconUrl>https://gravatar.com/avatar/9cecda5822fc5d4d2e61ec03da571b3d?size=256</PackageIconUrl>
+    <RepositoryUrl>https://git.openharbor.io/Open-Harbor/dotnet-jwt-token-manager</RepositoryUrl>
+    <RepositoryType>git</RepositoryType>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <PackageLicenseExpression>MIT</PackageLicenseExpression>
   </PropertyGroup>
 
 </Project>

OpenHarbor.JwtTokenManager/JwtTokenManagerService.cs

@@ -10,6 +10,7 @@ namespace OpenHarbor.JwtTokenManager;
 public class JwtTokenManagerService(JwtTokenManagerOptions options, IHttpClientFactory httpClientFactory, ILogger<JwtTokenManagerService>? logger, IMemoryCache? memoryCache, JwtTokenManagerCacheOptions cacheOptions) 
     : IJwtTokenManagerService
 {
+  private readonly HttpClient _httpClient = httpClientFactory.CreateClient();
   private readonly TimeSpan _cacheExpirationOffset = TimeSpan.FromSeconds(cacheOptions.ExpirationOffset);
   private readonly string _scopes = string.Join(" ", options.Scopes);
   
@@ -29,34 +30,30 @@ public class JwtTokenManagerService(JwtTokenManagerOptions options, IHttpClientF
         return cachedToken;
       }
     }
-
+    
-    var client = httpClientFactory.CreateClient();
+    var formContent = new FormUrlEncodedContent([
-
-    var formContent = new FormUrlEncodedContent(new[]
-    {
       new KeyValuePair<string, string>("grant_type", "client_credentials"),
       new KeyValuePair<string, string>("client_id", options.ClientId),
       new KeyValuePair<string, string>("client_secret", options.ClientSecret),
-      new KeyValuePair<string, string>("scopes", string.Join(" ", options.Scopes))
+      new KeyValuePair<string, string>("scopes", string.Join(" ", _scopes))
-    });
+    ]);
     
     var request = new HttpRequestMessage(HttpMethod.Post, options.TokenEndpoint)
     {
       Content = formContent
     };
+    
     request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
     
-    var response = await client.SendAsync(request, cancellationToken);
+    var response = await _httpClient.SendAsync(request, cancellationToken);
     
-    var t = await response.Content.ReadAsStringAsync(cancellationToken);
-
     response.EnsureSuccessStatusCode();
     
     var tokenResponse = await response.Content.ReadFromJsonAsync<JwtTokenResponse>(SnakeCaseOptions, cancellationToken);
     
     if (tokenResponse == null)
     {
-      throw new InvalidOperationException("Failed to deserialize the response content.");
+      throw new InvalidOperationException("Failed to deserialize the token response content.");
     }
 
     var parsedResult = Enum.TryParse<TokenType>(tokenResponse.TokenType, out var tokenType);

OpenHarbor.JwtTokenManager/OpenHarbor.JwtTokenManager.csproj

@@ -6,6 +6,10 @@
     <Nullable>enable</Nullable>
     <Authors>Mathias Beaulieu-Duncan</Authors>
     <PackageIconUrl>https://gravatar.com/avatar/9cecda5822fc5d4d2e61ec03da571b3d?size=256</PackageIconUrl>
+    <RepositoryUrl>https://git.openharbor.io/Open-Harbor/dotnet-jwt-token-manager</RepositoryUrl>
+    <RepositoryType>git</RepositoryType>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <PackageLicenseExpression>MIT</PackageLicenseExpression>
   </PropertyGroup>
 
   <ItemGroup>

readme.md

@@ -0,0 +1,69 @@
+# Lightweight library allowing to manage access token its lifetime with caching capability for services accounts with the oauth2 protocol
+
+# Installing Nuget
+
+> Install nuget package to your awesome project.
+
+| Full Version                            | NuGet                                                                                                                                                                                                                                                              |                                                               NuGet Install |
+|-----------------------------------------| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |----------------------------------------------------------------------------:|
+| OpenHarbor.JwtTokenManager              | <a href="https://www.nuget.org/packages/OpenHarbor.JwtTokenManager" target="_blank">[![NuGet](https://img.shields.io/nuget/v/OpenHarbor.JwtTokenManager.svg?style=flat-square&label=nuget)](https://www.nuget.org/packages/OpenHarbor.JwtTokenManager/)</a>             |                        ```PM> Install-Package OpenHarbor.JwtTokenManager``` |
+| OpenHarbor.JwtTokenManager.Abstractions | <a href="https://www.nuget.org/packages/OpenHarbor.JwtTokenManager.Abstractions" target="_blank">[![NuGet](https://img.shields.io/nuget/v/OpenHarbor.JwtTokenManager.Abstractions.svg?style=flat-square&label=nuget)](https://www.nuget.org/packages/OpenHarbor.JwtTokenManager.Abstractions/)</a>          |     ```PM> Install-Package OpenHarbor.JwtTokenManager.Abstractions``` |
+
+# How to use
+
+> appsettings.json
+
+```json
+{
+"JwtTokenManager": {
+    "TokenEndpoint": "",
+    "ClientId": "",
+    "ClientSecret": "",
+    "Scopes": []
+  }
+}
+```
+
+> Program.cs
+
+```csharp
+builder.Services.AddHttpClient();
+builder.Services.AddMemoryCache(); // use the IMemoryCache provider you want
+
+builder.Services.AddJwtTokenManager(builder.Configuration, "JwtTokenManager");
+```
+
+> Program.cs with deeper configurations
+
+```csharp
+builder.Services.AddHttpClient();
+
+builder.Services.AddJwtTokenManager(builder.Configuration, "JwtTokenManager", options =>
+{
+  options.Cache(cacheOptions =>
+      {
+        cacheOptions.ExpirationOffset = 30; // 15 by default
+      }, 
+      // optional to configure your own IMemoryCache provider for the token management
+      provider => provider.GetRequiredService<IMemoryCache>());
+  
+  options.Configuration(overrideConfiguration =>
+  {
+    overrideConfiguration.Scopes = ["offline_access"];
+  });
+});
+```
+
+> Use the JwtTokenManager
+
+```csharp
+public class MyService(HttpClient httpClient, IJwtTokenManagerService jwtTokenManagerService)
+{
+  public async Task DoActionAsync(CancellationToken cancellationToken) {
+    
+    var tokenResult = await jwtTokenManagerService.GetTokenAsync(cancellationToken);
+    httpClient.SetJwtAccessToken(tokenResult);
+    ...
+  }
+}
+```