.Net 6 how to register ILogger into IServiceCollection with implementation

Question

.Net 6 how to register ILogger into IServiceCollection with implementation

Uday Mahajan 1

Hi
I am working on a .Net to .Net 6 migration application and want to register ILogger in IService Collection with implementation.
In the existing .Net application, the ILogger is resolved as follows using structure map

ForRequestedType<ILogger>().AsSingletons().TheDefault.Is.ConstructedBy(() =>
GetLoggerFactory().CreateLogger("InstanceName"));

private ILoggerFactory GetLoggerFactory()
{
Log.Logger = new LoggerConfiguration()
.ReadFrom.AppSettings()
.CreateLogger();
return new LoggerFactory()
.AddSerilog();
}

Now I want to register for ILogger on .Net 6. When I tried to register below, it didn't allow to register.

services.AddTransient<ILogger,GetLoggerFactory().CreateLogger("InstanceName")>();

It gave me an error as 'ILogger' is a type,which is not valid in the given context.

So, anyone could you please help us to register for ILogger ?

Anonymous

Hi @Uday Mahajan

private ILoggerFactory GetLoggerFactory()

This is just a private method, and in this method you have .CreateLogger(). And when you register you also use CreateLogger. I think this is the issue. I have try below code and it works for me.
And usually we will create a custom service with serilog, then we can register the custom service in program.cs file.

            var builder = WebApplication.CreateBuilder(args);  
  
            // Add services to the container.  
            builder.Services.AddControllersWithViews();  
            //builder.Services  
  
            //Log.Logger = new LoggerConfiguration().WriteTo.Console().CreateLogger();  
            //var logservice = new LoggerFactory().AddSerilog();  
  
            var logservice = GetLoggerFactory();  
  
            builder.Services.AddSingleton(logservice);  
  
            var app = builder.Build();

Best Regards
Jason

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Anonymous

2022-09-28T09:51:15.98+00:00

Hi @Uday Mahajan

private ILoggerFactory GetLoggerFactory()

This is just a private method, and in this method you have .CreateLogger(). And when you register you also use CreateLogger. I think this is the issue. I have try below code and it works for me.
And usually we will create a custom service with serilog, then we can register the custom service in program.cs file.

var builder = WebApplication.CreateBuilder(args); // Add services to the container. builder.Services.AddControllersWithViews(); //builder.Services //Log.Logger = new LoggerConfiguration().WriteTo.Console().CreateLogger(); //var logservice = new LoggerFactory().AddSerilog(); var logservice = GetLoggerFactory(); builder.Services.AddSingleton(logservice); var app = builder.Build();

Best Regards
Jason

Answer 1

Bruce (SqlWork.com) 77,766 Volunteer Moderator

why services.AddTransient? it seems like a singleton. try:

builder.Services.AddSingleton<ILogger>(GetLoggerFactory().CreateLogger("InstanceName"));

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.Net 6 how to register ILogger into IServiceCollection with implementation

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