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A couple of utilities to make usage of configuration options a little bit easier in .NetCore 3.1. One of them allows you to expand environment variables in configuration options, the other one can uatomatically bind option class to a section name in `appsettings.json`.

License: MIT License

C# 100.00%
autobind bind configuration environment environment-variables netcore31 option substitute

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configuration-extensions's Issues

Feature Request: dictionaries support for VariablesSubstitution

E.g., Dictionary<TKey,TValue>

For instance, for this class

public class ImageSettings
{
    public string Directory { get; set; }
    public Dictionary<ImageType, string> ImagePaths { get; set; }
}

public enum ImageType { Full, Cropped }

AddOptions() and AutoBind() work fine, but SubstituteVariables() gives the following error on the option resolution:

System.Reflection.TargetParameterCountException: Parameter count mismatch.
   at System.Reflection.RuntimeMethodInfo.InvokeArgumentsCheck(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index)
   at Contrib.Extensions.Configuration.VariablesSubstitution.OptionConfigurator.Configure[TOption](TOption option)
   at Contrib.Extensions.Configuration.VariablesSubstitution.OptionConfigurator.Configure[TOption](TOption option)
   at Contrib.Extensions.Configuration.VariablesSubstitutionExtensions.<>c__0`1.<SubstituteVariables>b__0_0(TOption opt, IOptionConfigurator conf)
   at Microsoft.Extensions.Options.ConfigureNamedOptions`2.Configure(String name, TOptions options)
   at Microsoft.Extensions.Options.OptionsFactory`1.Create(String name)
   at Microsoft.Extensions.Options.OptionsManager`1.<>c__DisplayClass5_0.<Get>b__0()
   at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
   at System.Lazy`1.ExecutionAndPublication(LazyHelper executionAndPublication, Boolean useDefaultConstructor)
   at System.Lazy`1.CreateValue()
   at System.Lazy`1.get_Value()
   at Microsoft.Extensions.Options.OptionsCache`1.GetOrAdd(String name, Func`1 createOptions)
   at Microsoft.Extensions.Options.OptionsManager`1.Get(String name)
   at Microsoft.Extensions.Options.OptionsManager`1.get_Value()
   at FakeImage.Startup.Configure(IApplicationBuilder app, ILogger`1 logger) in ..\FakeImage\Startup.cs:line 160
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at Microsoft.AspNetCore.Hosting.ConfigureBuilder.Invoke(Object instance, IApplicationBuilder builder)
   at Microsoft.AspNetCore.Hosting.ConfigureBuilder.<>c__DisplayClass4_0.<Build>b__0(IApplicationBuilder builder)
   at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.<>c__DisplayClass13_0.<UseStartup>b__2(IApplicationBuilder app)   at Microsoft.AspNetCore.Mvc.Filters.MiddlewareFilterBuilderStartupFilter.<>c__DisplayClass0_0.<Configure>g__MiddlewareFilterBuilder|0(IApplicationBuilder builder)
   at Microsoft.AspNetCore.HostFilteringStartupFilter.<>c__DisplayClass0_0.<Configure>b__0(IApplicationBuilder app)
   at Microsoft.AspNetCore.Hosting.GenericWebHostService.StartAsync(CancellationToken cancellationToken)

which is described on the docs (see Remarks section).

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