C#•2w ago

✅ using Logging with ASP.NET

ASP.NET has a logging service. It looks way better than mine. I believe it gets set up here:

builder.Logging.ClearProviders();
builder.Logging.AddConsole();
builder.Logging.AddDebug();

builder.Logging.ClearProviders();
builder.Logging.AddConsole();
builder.Logging.AddDebug();

Where can i find/modify this method? How can i trigger my own logs?

66 Replies

Jimmacle•2w ago

you can inject that logger with ILogger<TheTypeDoingTheLogging>

Jimmacle•2w ago

https://learn.microsoft.com/en-us/aspnet/core/fundamentals/logging/?view=aspnetcore-8.0

Logging in .NET Core and ASP.NET Core

Learn how to use the logging framework provided by the Microsoft.Extensions.Logging NuGet package.

hutonahill•2w ago

ok, almost there. i figured out how to use the ILogger, but now i need to generate a new ILogger<MyType> logger and i cant figure out how to do that in a way that works...

Jimmacle•2w ago

it should Just Work you don't need to generate that yourself, DI can figure out how to construct the service you're asking for

hutonahill•2w ago

yes, i passed app.Logger into my process, but it logs as though is ASP.NET. i think i explaned that badly... My App has two processes running: an ASP.NET api and a discord bot. right now when my discord bot needs to log something it just prints to the console. this works, but ASP.NETS logging looks way better so i want to implement this for my discord bot. So somehow i need to generate an istance of ILogger<Bot> that i can pass to my discord bot so it can log stuff and look nice. oh, ist an ILogger.

Jimmacle•2w ago

i'm confused, what setup do you have for both processes to log to the same console?

hutonahill•2w ago

becasue i didnt know there was another option? theres one console...

Jimmacle•2w ago

and do you actually need 2 processes compared to hosted services?

hutonahill•2w ago

i dont know how to create a hosted service.

Jimmacle•2w ago

https://learn.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-8.0&tabs=visual-studio

Background tasks with hosted services in ASP.NET Core

Learn how to implement background tasks with hosted services in ASP.NET Core.

Jimmacle•2w ago

you could run the bot portion as a hosted service in your ASP.NET Core application

hutonahill•2w ago

that sounds more integrated at the least... i still want to create a seprate logger for the bot to more easily identify when the bot loggs somthing and when the API logs somthing.

Jimmacle•2w ago

right, all that is involved in creating a "separate" logger is injecting ILogger<T> where T is any type you want (but typically the type you're injecting the logger into)

hutonahill•2w ago

Logger<Bot> discordLogger = new Logger<Bot>(new LoggerFactory());
                
Bot discordBot = new Bot(botConfig, discordLogger);
taskList.Add(discordBot.Run());

Logger<Bot> discordLogger = new Logger<Bot>(new LoggerFactory());
                
Bot discordBot = new Bot(botConfig, discordLogger);
taskList.Add(discordBot.Run());

This doesnt work when i try and log somthing it dosnt do anything.

Jimmacle•2w ago

i don't know what that is, that's not what i'm recommending

public class MyClass
{
    public MyClass(ILogger<MyClass> logger)
    {
        logger.LogInformation("Hi I'm Logging");
    }
}

public class MyClass
{
    public MyClass(ILogger<MyClass> logger)
    {
        logger.LogInformation("Hi I'm Logging");
    }
}

then when you create that class through DI it will inject an appropriate instance for you alternatively get it yourself with serviceProvider.GetRequiredService<ILogger<MyClass>>() there's a whole bunch of logging infrastructure that is set up for you in DI, but with your code you're basically creating an empty unconfigured logger so it won't do anything

Gaming

Programming

✅ using Logging with ASP.NET