Why locking in the first place? Because in many scenarios we need to guarantee the consistency of the data, this means that we will not allow for one user changing data that another user has already edited. There are 2 types of locks that we can implement: optimistic pessimistic When pessimistic? A pessimistic lock isRead more
In this article I will present my approach in accessing AAD user information using WebApi and a self signed certificate stored in keyvault. I am using .net 5, c#9 and for the test environmentI created an account using https://developer.microsoft.com/en-us/microsoft-365/dev-program , with this account you have a list of sample users which you can use toRead more
Bitwise operations are important when dealing with permissions. In this case the permissions are designed as flags and the operations described will include the scenario where one variable can have one or multiple permissions, all described in the enum. The following enum defines a set of permissions for a particular operation.
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[Flags] public enum Flags : long { T1_CanDelete = 2 << 0, T1_CanEdit = 2 << 1, T2_CanDelete = 2 << 2 } |
Or Operation ToRead more
Description I am not well trained into solving algorithms but from time to time this topic raises my interest and I find my self drawn into wanting to understand the underlying logic. I recently found a problem that I found to interresting to solve, it’s a Microsoft engineer interviewing question and I followed along theRead more
Perhaps not used too much but it’s very usefull to know. I had to implement data validation on several occasions outside of asp dotnet context.Read more
Description Blazor comes with some pretty nice tricks, some of them which were either not possible, or just hard to implement in other frameworks. Having a modular system in blazor is … amazingly easy. You just have to tell the Router component, to look for other assemblies also I have a simple blazor app,Read more
Description Data protection is a built-in cryptographic API which provides developer capabilities to persist trusted information while considering that the storage is untrusted. Simplicity in configuration Intuitive API complex/hidden key management principles To use data protection simply add the following package: To create the provider you can use the dependency injection: or you can instantiateRead more
A less known yet usefull component in dotnet is the TypeConverter component. This component provides means to convert between data types. If you are wondering which data types are by default supported, just take a look under the hoodRead more
Description GRPC represents big step in microservices communication for speed and performance overall. I am using GRPC with great pleasure and one major advantage for me as a developer is the ease and speed of development because the compiler takes care of generating both the client and the server. I am personally against using RESTRead more
Description I have been using for a while GRPC with c# to learn and test it’s capabilities. I recently installed on a secondary computer Kubuntu and docker and tried to make use of GRPC service by calling it from my laptop. This has failed because it requires a valid certificate for that (well..at leas aRead more
