Sometimes when we want to generate code whether it is source generators or code fixes for a code analyzer, it is required to know how a syntax tree could be created using the Roslyn Compiler API. There are two ways, that we will discuss them in this post.
Compilers used to be a black box, they were accepting a bunch of source files as input and were producing an artifact as an output! There were no means of interaction with any of the phases inside the compiler pipeline. However, with Roslyn, The .NET Compiler Platform SDK, it is not the case anymore!
How do you ensure that duplicate keys are prevented on a column that allows NULL values?
A colleague of mine had a requirement in which he was interested to put the configuration settings of an ASP.NET Core application inside a SQL Server table and read them at startup of the application with a mechanism similar to what we already have for JSON files; also he wanted to have the ability that these variable being overridden or override other settings if applicable. In this article, I am going to describe how that could be achievable and how to implement such feature.
JSON Web Token (JWT) is an Internet standard for creating data with optional signature and/or optional encryption whose payload holds JSON that asserts some number of claims.
We will take a look at another popular feature, Shadow Properties. When designing applications we tend to keep our code clean and simple, however there are times that you need to add properties other than what is required in your main business use cases, CreatedOn and LastUpdatedOn are such well-known properties.
In this article we are going to check one of the features of Entity Framework Core, Global Query Filters; this was introduced first in EF Core 2.0 and is just a query predicate that will be appended to the end of where clause for queries on entities for which this feature has been activated.