Archived articles - June 2018

Archive for June 2018 (11)

Token based authentication and Identity framework in ASP.NET Core - Part 3
Setting up asymmetric key token based authentication in ASP.NET Core application on top of Identity Framework
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Recently I wrote about setting up .NET Core Identity Framework and Token based authentication in ASP.NET Core using symmetric key signing. The downside of this approach is that both identity and resource server share the same key for signing and validating the token...read more
Token based authentication and Identity framework in ASP.NET Core - Part 2
Setting up token based authentication in ASP.NET Core application on top of Identity Framework
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In article Token based authentication and Identity framework in ASP.NET Core - Part 1 I described how to setup identity library for storing user accounts. Now we are going to setup ASP.NET Core Web API project to issue the token for authenticated users so they can access protected resources. Identity Web API instance will be separated from from the resource Web API, so we'll have eventually two and possibly in future more resource services which will all use single identity server fr authentication and issuing access tokens. ...read more
Token based authentication and Identity framework in ASP.NET Core - Part 1
Setting up Identity Framework in ASP.NET Core application
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In ASP.NET Core identity framework is introduced as a membership provider making user management, authentication and authorization. It is built on to Entity Framework Core ORM which allows you to be storage type independent...read more
Remote PowerShell Core session to a Linux host from Windows machine
Remote sessions using OpenSSH from Windows to Linux host
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Starting from January 2018, Microsft has made PowerShell Core 6, a cross-platform tool available not only to Windows users which was the case so far with previous versions, but to Linux and Mac users as well. Since it was tool for Windows only, it had it's own ways for remoting using WinRM unlike Linux operating systems which primarily rely on SSH. Windows is great for editing and development, I find it really comfortable to work on with so many tools and platform available...read more
Sending email in ASP.NET Core using SmtpClient and dependency injection
Using dependency injection to send email in ASP.NET Core
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Starting with .NET Core 2.0, Microsoft introduced SmtpClient, identical implementation as in .NET 4. This made sending emails from the application a lot easier as there is functionality out of the box and you do not have to rely on the 3rd party nuget packages. If you inspect this class, you will see that the only interface it inherits is IDisposable, so it does not give you many options for injection unless you wrap it with your own implementation and interface, but since we are not going to go that deep into the dependency injection, we'll just focus on creating a client instance using .NET Core dependency injection framework. ...read more
Clean service stop by handling SIGTERM on Linux with .NET Core 2.1
Application stop with SIGTERM handling in .NET Core 2.1 on Linux using generic host
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Some time ago I wrote about setting up .NET Core service/daemon on Linux. Back than I was using .NET Core 2.0 SDK on both development Windows machine and Linux host machine...read more
Advanced versioning in ASP.NET Core Web API
Different approaches in ASP.NET Core Web API versioning
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Some time ago I wrote an article about ASP.NET Core Web API versioning which describes route based Web API endpoint versioning. I love route versioning and to me it is the best way of versioning because it is pretty straight, but there are situations where this kind of versioning is not suitable. On nuget.org you can find Microsoft.AspNetCore.Mvc.Versioning package which gives you more options on how you can version your Web API endpoints...read more
Use different configuration based on environment value in ASP.NET Core
Different configuration per environment in ASP.NET Core
 
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In .NET framework, having separate configuration is possible by having different web.config or app.config file transformations since in .NET framework configuration is stored in XML format. You can check more on this in article Separate configuration files per build config in Visual Studio IDE...read more
How to boost application performance by choosing the right serialization
Improving performance of .NET application with different serialization formats
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Pretty much any serious application now days needs to interact with any storage media such as disk or network. This is where serialization comes in...read more
How to setup ASP.NET Core run on Debian Linux with Nginx
Hosting and running ASP.NET Core project on linux
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In two previous articles (How to setup .NET Core 2 on Debian or Ubuntu Linux distro the easy way & Setting up .NET Core service/daemon on Debian Linux OS) I explained how to setup and run .NET Core based applications and how to run them as a Linux daemon. In this article we are going to take it one step further...read more

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