With the release of ASP.NET Core, configuration was given a major upgrade. The new options API provides the ability to add configuration sections to the service provider and then inject them using the options interfaces. Unfortunately, I still see people injecting IConfiguration and then manually grabbing values with strings.Continue reading “Configuration in ASP.NET Core”
In the first five years that I was working as a developer I didn’t once bother to read the .NET framework source code. I’m going to go out on a limb and say that this is probably the case for most software developers. We work with the .NET framework and associated tools and libraries every day, but we seldom care about how they really work or what’s contained within. Now, don’t get me wrong, the whole point of a framework is to shield you from having to know the underlying implementation details and knowing the entire framework is not necessary. I would argue though that knowing parts of the framework and how they work opens up opportunities and affords certain benefits.
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If you’re using Entity Framework Core and building any non-trivial enterprise application then using data tables with paging is almost a certainty. There are two ways to do this: server side and client side. Which one you choose depends on your design and your needs. There are pros and cons associated with both so you need to choose the correct approach for what you want to accomplish. Continue reading “Paging in Entity Framework Core”
Entity Framework Core query performance is something that comes up often when working on projects that rely on it heavily. I have often heard that Entity Framework is not performant enough which then leads to everything being written as a stored procedure. Usually this happens for two main reasons: developers aren’t familiar with how to write queries in a performant manner and developers that are more comfortable with SQL want to develop everything in their technology of choice. Entity Framework is not a silver bullet for everything. There are times when it simply can’t deliver the performance needed or when it is simply functionally incapable of doing what is necessary due to limitations of the framework. That being said, there is no reason you can’t write the vast majority of your application with it and reap all the benefits it provides.
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Continue reading “IdentityServer4 in ASP.NET Core Part 1”
If you’ve worked with Asp.Net Core to create APIs then you have more than likely run into situations where you needed to return different sets of data for the same model. One way to accomplish this is request post processing using an ActionFilter. Lets start with a common scenario. We have an internal enterprise application and we have different types of users in the system. Users can call our API to get data on other users depending on their permission levels. We have three different types of users: Admin, HelpDesk, and Employee. Our class looks like this:
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