feat: Add .NET Standard 2.0 target

source/VMelnalksnis.NordigenDotNet.DependencyInjection/ServiceCollectionExtensions.cs

@@ -40,7 +40,11 @@ public static class ServiceCollectionExtensions
 	/// <param name="serviceCollection">The service collection in which to register the services.</param>
 	/// <param name="configuration">The configuration to which to bind options models.</param>
 	/// <returns>The <see cref="IHttpClientBuilder"/> for the <see cref="HttpClient"/> used by <see cref="INordigenClient"/>.</returns>
+#if NET6_0_OR_GREATER
 	[UnconditionalSuppressMessage("ReflectionAnalysis", "IL2026", Justification = $"{nameof(NordigenOptions)} contains only system types.")]
+#else
+	[SuppressMessage("Trimming", "IL2026", Justification = $"{nameof(NordigenOptions)} contains only system types.")]
+#endif
 	public static IHttpClientBuilder AddNordigenDotNet(
 		this IServiceCollection serviceCollection,
 		IConfiguration configuration)

source/VMelnalksnis.NordigenDotNet.DependencyInjection/VMelnalksnis.NordigenDotNet.DependencyInjection.csproj

@@ -1,8 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFramework>net6.0</TargetFramework>
-
 		<Product>VMelnalksnis.NordigenDotNet.DependencyInjection</Product>
 		<ProductId>VMelnalksnis.NordigenDotNet.DependencyInjection</ProductId>
 		<Description>Dependency injection configuration for VMelnalksnis.NordigenDotNet</Description>

source/VMelnalksnis.NordigenDotNet/Serialization/HttpResponseMessageExtensions.cs

@@ -17,6 +17,10 @@ internal static class HttpResponseMessageExtensions
 		}
 
 		var content = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
+#if NET6_0_OR_GREATER
 		throw new HttpRequestException(content, null, response.StatusCode);
+#else
+		throw new HttpRequestException(content);
+#endif
 	}
 }

source/VMelnalksnis.NordigenDotNet/VMelnalksnis.NordigenDotNet.csproj

@@ -1,8 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFramework>net6.0</TargetFramework>
-
 		<Product>VMelnalksnis.NordigenDotNet</Product>
 		<ProductId>VMelnalksnis.NordigenDotNet</ProductId>
 		<Description>.NET API client for Nordigen</Description>
@@ -20,6 +18,12 @@
 		<PackageReference Include="NodaTime.Serialization.SystemTextJson" Version="1.0.0"/>
 	</ItemGroup>
 
+	<ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
+		<PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="7.0.0" />
+		<PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0"/>
+		<PackageReference Include="System.Net.Http.Json" Version="7.0.0" />
+	</ItemGroup>
+
 	<ItemGroup>
 		<None Include="..\..\README.md" Pack="true" PackagePath="\"/>
 	</ItemGroup>