Excalibur.A3.Policy.Opa 10.0.0-alpha.11

This is a prerelease version of Excalibur.A3.Policy.Opa.

dotnet add package Excalibur.A3.Policy.Opa --version 10.0.0-alpha.11

NuGet\Install-Package Excalibur.A3.Policy.Opa -Version 10.0.0-alpha.11

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.

<PackageReference Include="Excalibur.A3.Policy.Opa" Version="10.0.0-alpha.11" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Excalibur.A3.Policy.Opa" Version="10.0.0-alpha.11" />
                    

                            Directory.Packages.props

<PackageReference Include="Excalibur.A3.Policy.Opa" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Excalibur.A3.Policy.Opa --version 10.0.0-alpha.11

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Excalibur.A3.Policy.Opa, 10.0.0-alpha.11"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Excalibur.A3.Policy.Opa@10.0.0-alpha.11

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Excalibur.A3.Policy.Opa&version=10.0.0-alpha.11&prerelease
                    

                            Install as a Cake Addin

#tool nuget:?package=Excalibur.A3.Policy.Opa&version=10.0.0-alpha.11&prerelease
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Excalibur.A3.Policy.Opa

Open Policy Agent (OPA) HTTP adapter for the Excalibur A3 authorization framework.

Overview

This package implements IAuthorizationEvaluator by delegating policy decisions to an external OPA server via HTTP/REST. Authorization requests are mapped to OPA input format and evaluated against your Rego policies.

Quick Start

services.AddExcaliburA3(a3 =>
{
    a3.UseOpaPolicy(opa =>
    {
        opa.Endpoint = "http://localhost:8181";
        opa.PolicyPath = "v1/data/authz/allow";
        opa.TimeoutMs = 5000;
        opa.FailClosed = true; // deny on OPA errors
    });
});

Features

Fail-closed by default: HTTP errors, timeouts, and malformed responses result in denial
Configurable fail-open: Set FailClosed = false for permissive error handling
IHttpClientFactory integration: Managed HTTP client lifetime with proper pooling
STJ source-gen ready: Zero-reflection JSON serialization for AOT compatibility
Minimal dependencies: Only Microsoft.Extensions.Http and System.Text.Json

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- Excalibur.A3.Abstractions (>= 10.0.0-alpha.11)
- Medo.Uuid7 (>= 3.2.0)
- Microsoft.Extensions.Configuration (>= 10.0.10)
- Microsoft.Extensions.Configuration.Abstractions (>= 10.0.10)
- Microsoft.Extensions.Configuration.Binder (>= 10.0.10)
- Microsoft.Extensions.DependencyInjection (>= 10.0.10)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 10.0.10)
- Microsoft.Extensions.Http (>= 10.0.10)
- Microsoft.Extensions.Logging (>= 10.0.10)
- Microsoft.Extensions.Logging.Abstractions (>= 10.0.10)
- Microsoft.Extensions.Options (>= 10.0.10)
- Microsoft.Extensions.Options.ConfigurationExtensions (>= 10.0.10)
- Microsoft.Extensions.Options.DataAnnotations (>= 10.0.10)

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
10.0.0-alpha.11	0	9/15/2026
10.0.0-alpha.10	61	9/6/2026
10.0.0-alpha.9	51	8/31/2026
10.0.0-alpha.8	78	8/14/2026
10.0.0-alpha.7	65	8/13/2026
10.0.0-alpha.6	69	8/11/2026
10.0.0-alpha.5	62	8/10/2026
10.0.0-alpha.4	54	8/10/2026
3.0.0-alpha.216	80	6/30/2026
3.0.0-alpha.215	71	6/23/2026
3.0.0-alpha.214	74	6/23/2026
3.0.0-alpha.208	70	6/11/2026
3.0.0-alpha.207	73	6/11/2026
3.0.0-alpha.205	71	6/10/2026
3.0.0-alpha.204	68	6/8/2026
3.0.0-alpha.203	69	6/8/2026
3.0.0-alpha.202	63	6/8/2026
3.0.0-alpha.201	75	6/8/2026
3.0.0-alpha.199	71	6/8/2026
3.0.0-alpha.198	74	5/28/2026

Release notes and versioning policy: https://docs.excalibur-dispatch.dev/docs/migration/version-upgrades