All Questions

50 views

ServiceStack: Will there be an OnBeforeExecuteAsync?

I have a ServiceStack Service with a baseclass, and I was hoping to execute some code "OnBeforeExecute", like below. However, I am mostly encountering async methods that needs to be awaited, and gener...

Modified: 11 Jan at 12:56

0 votes

40 views

How to authenticate to a ServiceStack API which is part of a .Net 5 Identity MVC Website

I have a test project based on the .Net 5 ServiceStack mvcidentity sample. For web-based access, the authentication works as expected. Accessing the API directly from another app for the hello sample ...

Modified: 11 Jan at 11:38

18 votes

1.7k views

Why doesn't IList<T> only inherit from ICollection<T>?

Interestingly, when I go to the definition of `IList<T>` in the Visual Studio, it's not the same as the source code on GitHub. [](https://i.stack.imgur.com/9Ciqs.jpg) `IList<T>` ``` public interface I...

Modified: 11 Jan at 08:5

0 votes

91 views

Single session using servicestack

I like to implement the functionality where if two users are trying to login with the same credentials then the first user should log out as soon as the second user login. consider user one is logged ...

Modified: 11 Jan at 09:0

22 votes

11.6k views

In EF Core 5, how can I insert an entity with a many to many relation by setting only the foreigns keys IDs, without querying first?

The other table contain references data with well know ID. The use case is to read data from file, create entities then insert them in batch. I don't need to query anything first, so all entities are ...

Modified: 11 Jan at 21:54

56 votes

32.7k views

Equivalent of JObject in System.Text.Json

I have DTO class that has a property of type `JObject`. This DTO class is send/receive over HTTP between multiple services. JObject is used because the `ExtractedData` does not have predefined propert...

Modified: 17 Aug at 13:55

1 votes

458 views

Redis Timeout using Servicestack

We use Service stack as our RedisClient. Our application handles above 50 requests per second and the current architecture is that 12 load balanced application instances all connect to a single Redis ...

Modified: 6 Jan at 06:56

12 votes

574 views

How can I find all references to fields defined by a C# 9 record?

Repro: ``` public class TestCase { public Boolean MyFieldIsFour(MyRecord myRecord) { return myRecord.MyField == 4; } } public record MyRecord(int MyField); ``` Right click `int M...

Modified: 5 Jan at 18:32

0 votes

48 views

ServiceStack with IdentityServer

Using the template at [https://github.com/NetCoreTemplates/mvcidentityserver](https://github.com/NetCoreTemplates/mvcidentityserver) and trying to require Authorization to access the ServiceStack "Hel...

Modified: 5 Jan at 19:24

32 votes

3.2k views

When can a null check throw a NullReferenceException

I know this might seem impossible at first and it seemed that way to me at first as well, but recently I have seen exactly this kind of code throw a `NullReferenceException`, so it is definitely possi...

Modified: 22 Feb at 05:41

11 votes

1k views

C# "anyString".Contains('\0', StringComparison.InvariantCulture) returns true in .NET5 but false in older versions

I encountered an incompatible problem while I was trying to upgrade my projects from .NET core 3.1 to the latest .NET 5. My original code has a validation logic to check invalid file name characters b...

Modified: 6 Feb at 15:44

1 votes

37 views

QueryString.Add() gives "Specified method is not supported."

I am trying to modify the query string in a request filter like so: ``` public override void Execute(IRequest req, IResponse res, object requestDto) { req.QueryString.Add("foo", "bar"); } ``...

Modified: 5 Jan at 04:41

23 votes

4k views

IEnumerable<> vs List<> as a parameter

In general I tend to use `IEnumerable<>` as the type when I pass in parameters. However according to BenchmarkDotNet: ``` [Benchmark] public void EnumeratingCollectionsBad() { var list = new List<...

Modified: 5 Jan at 06:11

1 votes

60 views

AutoPopulate attribute not working on AutoQuery DTO

I am trying to get the new AutoPopulate attribute to work but I am having some difficulty understanding the new AutoQuery functionality. To test it out I am aiming to replace this service that is a st...

Modified: 4 Jan at 08:23

60 votes

152.5k views

"ERESOLVE unable to resolve dependency tree" when installing npm react-facebook-login

Trying to install `npm react-facebook-login` in my react app, but I keep getting dependency errors? That sounds scary and I don't want to force install something that can potentially break in the futu...

Modified: 3 Jan at 12:30

1 votes

510 views

Connect to Multiple Redis Instance using ServiceStack

I have multiple redis instances on my host (ports 6379, 6380). Currently I'm able to connect to the first instance (6379) using the setup below: ``` services.AddSingleton<IRedisClientsManager>(p => ...

Modified: 2 Jan at 07:21

15 votes

1k views

What is ICriticalNotifyCompletion for?

I'm trying to understand how the C# async mechanisms actually works and one source of confusion is the `ICriticalNotifyCompletion` interface. The interface provides two methods: `OnCompleted(Action)`,...

Modified: 1 Jan at 12:4

0 votes

150 views

CS0433: The type 'IHttpHandler' exists in both ServiceStack and System.Web

I have inherited a legacy ASP.NET application that I need to support whilst it is decommissioned but am finding that some of the websites will not compile due to the following error: > CS0433: The typ...

Modified: 31 Dec at 11:29

87 votes

136.6k views

Getting a warning when installing homebrew on MacOS Big Sur (M1 chip)

Has anyone seen this warning while installing homebrew? What does it mean? Should I be worried? : `/opt/homebrew/bin is not in your PATH`. [](https://i.stack.imgur.com/AmI00.png) Some background info:...

Modified: 8 Mar at 01:17

109 votes

202k views

Module not found: Can't resolve '@emotion/react'

I want to install [neumorphism-react](https://www.npmjs.com/package/neumorphism-react) package. But I got this error > Module not found: Can't resolve '@emotion/react' in 'C:\Users\Asus\Desktop\react ...

Modified: 22 Nov at 06:5

1 votes

28 views

Is it best practice to define your entity twice in a ServiceStack solution?

In the [EmailContacts](https://github.com/ServiceStack/EmailContacts/) example, the properties of a Contact are listed in the Contact class and in the CreateContact class. (there is no UpdateContact ...

Modified: 28 Dec at 18:56

46 votes

44k views

C# Source Generator - warning CS8032: An instance of analyzer cannot be created

I'm trying to build a Source Generator. Right now, just the most basic static method that returns "Hello World". The generator project builds, but the generated code is not available, the debugger nev...

Modified: 28 Dec at 15:21

358 votes

294.1k views

Docker (Apple Silicon/M1 Preview) MySQL "no matching manifest for linux/arm64/v8 in the manifest list entries"

I'm running the latest build of the [Docker Apple Silicon Preview.](https://www.docker.com/blog/download-and-try-the-tech-preview-of-docker-desktop-for-m1/) I created the tutorial container/images and...

Modified: 26 Dec at 13:20

128 votes