Questions tagged [microsoft.extensions.hosting]
16 questions
5
votes
1 answer
Use HostBuilder.ConfigureServices with DryIoc container?
I have some class libraries that provide services to the applications I create and for legacy reasons they are tightly bound to DryIoc. That is, the service registrations are tightly bound, not the actual services.
If I can I would rather not just…
Lasse V. Karlsen
- 380,855
- 102
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- 825
3
votes
1 answer
System.Exception: Method not found: 'ILoggerFactory.AddConsole(Microsoft.Extensions.Logging.ILoggerFactory, Microsoft.Extensions.Logging.LogLevel)'
I am trying to upgrade the .netcore framework from 2.2 to 3.1 .
But I want to use IHostingEnvironment, IWebHostBuilder and AddNewtonsoftJson in 3.1 also.
(I know they should be replaced but if I will do so, code refactoring will be required, which i…
kamini kumari
- 31
- 5
3
votes
2 answers
.NET Generic Host - Is it possible to stop and restart a host?
Consider this extremely simple .NET Core 3.1 (and .NET 5) application with no special config or hosted services:
using System.Threading.Tasks;
using Microsoft.Extensions.Hosting;
internal class Program
{
public static async Task Main(string[]…
Dunge
- 532
- 3
- 19
3
votes
2 answers
Can not inject IOptions in service
I am trying to inject a IOptions inside a service that I created and it is always null:
public class Startup
{
private IConfiguration configuration;
public Startup(IConfiguration config)
{
this.configuration = config; //gets…
Bercovici Adrian
- 8,794
- 17
- 73
- 152
2
votes
1 answer
What class does an instance of IHost returned by HostBuilder.Build() belong to?
I'm learning about Microsoft.Extensions.Hosting, and I've come across the HostBuilder.Build() method. I can see that it returns an instance of IHost interface ('an initialise IHost', according to learn.microsoft.com), but I don't know what class…
Elon Obama
- 29
- 6
2
votes
2 answers
Change service implementation later in execution (in Microsoft.Extensions.DependencyInjection)
I have a use-case (application with login and after that various pages with different functionalities to navigate through) where I register most of my services in the ConfigureServices method (like one would normally do) and hence before the actual…
Christoph Mett
- 369
- 3
- 16
2
votes
1 answer
Why is an object created by GetService not being destructed?
I am writing an application targeting the dotnet core framework 3.1. I use dependency injection to configure, among others, the database context. In my Program.cs I have the following code:
var host = new HostBuilder()
…
jokr
- 73
- 1
- 9
2
votes
3 answers
Simple Injector integration with HostBuilder in .NET Core 2.x
We are developing a windows service that runs .net core 2.x. Following this blog post by Steve Gordon running .netcore generic host applications as a service things seem to be working beautifully... as long as we use the IServiceCollection. I…
Steven
- 860
- 6
- 24
1
vote
1 answer
Unable to start .NET Core 3.1 Worker Service on Docker using Serilog
I'm writing a .Net Core 3.1 Worker Service application using Visual Studio 2019 (Docker support enabled).
If I start the app using Docker all works well but when I add Serilog.AspNetCore 3.4.0 dependency to the project I'm not able to debug with…
E.Benedos
- 1,585
- 14
- 41
0
votes
0 answers
After the Update-DataBase migration command, A database with the same name exists error
After executing the migration command Update-DataBase -v.
I get an error.
An attempt to attach an auto-named database for file Bookinist.mdf failed.
A database with the same name exists, or specified file cannot be opened, or it is located on UNC…
eusataf
- 807
- 1
- 12
- 24
0
votes
0 answers
IOptions validation error occurs when trying to run a dotnet app
I have built a Discord bot app with C# and I'm trying to run it using dotnet app.dll, but I instantly encounter an error:
Microsoft.Extensions.Options.OptionsValidationException: A validation error has occurred.
This issue does not happen if I use…
Darkhalo45
- 3
- 2
0
votes
0 answers
Best practise for multiple implementations of IHostedService
I have an application which acts as a gateway has two processes in it and they are continuously processing a stream of events. Both of the Processes have start and stop methods on them. They talk to each other via an event queue.
public class…
uriDium
- 13,110
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0
votes
1 answer
What is the purpose of IWebHostBuilder.PreferHostingUrls
I know what the documentation says, but I do not know where the IServer gets introduced or how it is configured.
My specific case is that I am calling IHostBuilder.ConfigureWebHost (not ConfigureWebHostDefaults), which as best I can determine does…
SOHO Developer
- 583
- 4
- 16
0
votes
1 answer
ConfigureContainer in .NET Core 3.1 Generic Host implementation
I am trying to migrate our framework project to .NET Core 3.1.
As part of the migration, I am trying to register modules via ConfigureContainer method provided by the GenericHost.
This is what I have:
Host.CreateDefaultBuilder(args)
…
Minu
- 232
- 4
- 13
0
votes
2 answers
"Microsoft.Extensions.DependencyInjection" and different concretes per environment
"Microsoft.Extensions.DependencyInjection"
List of "environments"
Production
Uat
Qa
DevShared
LocalDev
With DotNet (Framework/Classic) 4.6 or above (aka, "in the past", I used "Unity" with xml configuration. …
granadaCoder
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