CODEWITHSUNDEEP
c#asp.net-core
user441365
user441365

Reputation: 4024

Add method to existing Microsoft.Extensions.Logging.LoggerExtensions in Core 2.1

I want to add a method to the existing LoggerExtensions on Core 2.1 that will need to use IConfiguration to read some settings from the appsettings.json file.

I created a partial static class with my new method inside it but this does not allow me to access the IConfiguration as it is a static class.

How could I create this new method that is part of LoggerExtensions that can read from IConfiguration?

In the example below I can't access _configuration.GetSection as I can not inject it

public static partial class LoggerExtensions
    {
        public static void EmailError(this ILogger logger, Exception exception, string message)
        {

            using (var smtpClient = new SmtpClient(config.GetSection("Host").Value))
            {
                 // ......
            }
        }
    }

Upvotes: 2

Views: 1549

Answers (1)

Henk Mollema
Henk Mollema

Reputation: 46501

You should add the IConfiguration instance as a parameter to the extension method. For example:

public static void LogErrorAndEmail(this ILogger logger, IConfiguration configuration, Exception exception, string message, params object[] args)
{
    // ...
}

A better option might be to create a custom logger implementation which sends a mail under specific conditions. You can start by implementing the ILogger interface and implement your mail logic in the Log method. Inject the IConfiguration instance in the constructor. Secondly create a ILoggerFactory implementation to create a new instance of your custom logger, inject the IConfigruation parameter in the constructor as well and pass it to your logger. Finally call services.AddSingleton<ILoggerProvider, YourCustomLoggerProvider>() in the startup class to register your custom logger.

Upvotes: 3

Related Questions