asp.net-core

ASP.NET Core 1.0 on IIS error 502.5 – Error Code 0x80004005

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I was able to fix it by running “C:\Program Files\dotnet\dotnet.exe” “C:\fullpath\PROJECT.dll” on the command prompt, which gave me a much more meaningful error: “The specified framework ‘Microsoft.NETCore.App’, version ‘1.0.1’ was not found. – Check application dependencies and target a framework version installed at: C:\Program Files\dotnet\shared\Microsoft.NETCore.App – The following versions are installed: 1.0.0 – Alternatively, install … Read more

.net Core Quartz Dependency Injection

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You can use the Quartz.Spi.IJobFactory interface and implement it. The Quartz documentations states: When a trigger fires, the Job it is associated to is instantiated via the JobFactory configured on the Scheduler. The default JobFactory simply activates a new instance of the job class. You may want to create your own implementation of JobFactory to … Read more

Is there a built in way of using snake case as the naming policy for JSON in ASP.NET Core 3?

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Just slight modification in pfx code to remove the dependency on Newtonsoft Json.Net. String extension method to convert the given string to SnakeCase. public static class StringUtils { public static string ToSnakeCase(this string str) { return string.Concat(str.Select((x, i) => i > 0 && char.IsUpper(x) ? “_” + x.ToString() : x.ToString())).ToLower(); } } Then in our … Read more

ASP.Net Core SAML authentication

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This is probably basically an updated version of Anders Abel’s answer, but: I used https://github.com/Sustainsys/Saml2. They have a nuget package with 36k downloads called “Sustainsys.Saml2.AspNetCore2”. They have a helpful example .net core app using it that also uses .net core identity here: https://github.com/Sustainsys/Saml2/tree/master/Samples/SampleAspNetCore2ApplicationNETFramework (take a look at their startup.cs and also their external login razor … Read more

How do I serve static files only to authorized users?

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Yes, they should go in wwwroot. Currently there is no built-in way to secure wwwroot directories. But creating a middleware module to accomplish it is pretty straightforward. There is an easy to follow tutorial here. If you’re not familiar with developing middleware, I posted a GitHub project that shows how to create middleware in three … Read more

.NET Core dependency injection -> Get all implementations of an interface

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It’s just a matter of registering all IRule implementations one by one; the Microsoft.Extensions.DependencyInjection (MS.DI) library can resolve it as an IEnumerable<T>. For instance: services.AddTransient<IRule, Rule1>(); services.AddTransient<IRule, Rule2>(); services.AddTransient<IRule, Rule3>(); services.AddTransient<IRule, Rule4>(); Consumer: public sealed class Consumer { private readonly IEnumerable<IRule> rules; public Consumer(IEnumerable<IRule> rules) { this.rules = rules; } } NOTE: The only collection … Read more

HttpContext in .net standard library

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There’s a problem to your approach: .NET Standard is the most bare-bones implementation of .NET available, meaning that only basic features which are platform- and scenario-agnostic are implemented. HttpContext exists on both the .NET Framework and .NET Core (both of which implement .NET Standard, by the way), but being specific to the Web, it does … Read more

Error handling (Sending ex.Message to the client)

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Here is an simple error DTO class public class ErrorDto { public int Code {get;set;} public string Message { get; set; } // other fields public override string ToString() { return JsonConvert.SerializeObject(this); } } And then using the ExceptionHandler middleware: app.UseExceptionHandler(errorApp => { errorApp.Run(async context => { context.Response.StatusCode = 500; // or another Status accordingly … Read more

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