AzureExtensions.FunctionToken 1.0.4

.NET Standard 2.0
There is a newer version of this package available.
See the version list below for details.
NuGet\Install-Package AzureExtensions.FunctionToken -Version 1.0.4
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
dotnet add package AzureExtensions.FunctionToken --version 1.0.4
<PackageReference Include="AzureExtensions.FunctionToken" Version="1.0.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add AzureExtensions.FunctionToken --version 1.0.4
#r "nuget: AzureExtensions.FunctionToken, 1.0.4"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install AzureExtensions.FunctionToken as a Cake Addin
#addin nuget:?package=AzureExtensions.FunctionToken&version=1.0.4

// Install AzureExtensions.FunctionToken as a Cake Tool
#tool nuget:?package=AzureExtensions.FunctionToken&version=1.0.4

AzureExtensions.FunctionToken

Extension Attribute to Azure Functions v2, that allows to obrain ClaimsPrincipal on every request. Currently supports key load from Azure B2C by jwks_uri and simple JsonWebKey. Pluggable into Azure Function Startup

The extension allows you to use custom tokens in Azure Functions v2.

Step 1.

  1. Add the nuget AzureExtensions.FunctionToken
  2. Add to Startup file the following code. Currently, accepts simple JWK tokens or tokens loaded out of Azure B2C

           builder.AddAzureFunctionsToken(new TokenSinginingKeyOptions()
            {
                SigningKey = new JsonWebKey("your key"),
                Audience = "your audience",
                Issuer = "your issuer"
            });

OR B2C

            builder.AddAzureFunctionsToken(new TokenAzureB2COptions()
            {
                //AzureB2CSingingKeyUri = new Uri("https://yourapp.b2clogin.com/yourapp.onmicrosoft.com/discovery/v2.0/keys?p=yourapp-policy"),
                Audience = "your audience",
                Issuer = "your issuer"
            });

OR Firebase

            builder.AddAzureFunctionsToken(new FireBaseOptions()
            {
                GoogleServiceAccountJsonUri = new Uri("%uri-to-storage-with-secret-json-from-google")
            });

  1. Add it to Azure Function:
    public class Example
    {
        [FunctionName("Example")]
        public async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "get", Route = null)] HttpRequest req,
            [FunctionToken] FunctionTokenResult token,
            ILogger log)
        {
            log.LogInformation("C# HTTP trigger function processed a request.");
            return (ActionResult) new OkObjectResult($"Hello, {token}");
        }
    }
  1. By, default AuthLevel.Authorized level is used, but you can also specify AuthLevel.AllowAnonymous
        [FunctionName("Example")]
        public async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "get", Route = null)] HttpRequestMessage req,
            [FunctionToken(AuthLevel.AllowAnonymous)] FunctionTokenResult token,
            ILogger log)
        {
                log.LogInformation("C# HTTP trigger function processed a request.");
                return new OkObjectResult($"Hello, {token}");
        }}
  1. Currently, AF 2.0 does not support invocation to Short Circuit, so in order to return proper 401 code when UnAuthorized, the function should be wrapped in Handler: Wrap/WrapAsync. This one will return 401 if token is invalid:
        [FunctionName("Example")]
        public async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "get", Route = null)] HttpRequestMessage req,
            [FunctionToken(AuthLevel.Authorized)] FunctionTokenResult token,
            ILogger log)
        {
            return await Handler.WrapAsync(token,async () =>
            {
                log.LogInformation("C# HTTP trigger function processed a request.");
                return new OkObjectResult($"Hello, {token}");
            });
        }
  1. That's it
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
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Version Downloads Last updated
1.0.15 2,035 5/17/2020
1.0.14 296 5/17/2020
1.0.13 313 5/10/2020
1.0.12 352 4/15/2020
1.0.11 825 12/28/2019
1.0.10 367 12/28/2019
1.0.9 413 12/28/2019
1.0.8 415 12/28/2019
1.0.7 1,069 10/5/2019
1.0.6 430 8/27/2019
1.0.5 419 8/26/2019
1.0.4 352 8/25/2019
1.0.3 384 7/27/2019
1.0.2 367 7/22/2019