How can I log exceptions in ASP.NET Core?

How can I log exceptions in ASP.NET Core?

You can log exceptions in ASP.NET Core using the built-in logging framework. You can inject an ILogger instance into your classes and use it to log exceptions.

Can you show me a code example?

Sure! Here's a simple example:

public class MyController : ControllerBase
{
    private readonly ILogger<MyController> _logger;

    public MyController(ILogger<MyController> logger)
    {
        _logger = logger;
    }

    public IActionResult Get()
    {
        try
        {
            // Your code here
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "An error occurred while processing your request.");
            return StatusCode(500, "Internal server error.");
        }
    }
}

What if I want to log to a file instead of the console?

You can configure logging to write to a file by using a logging provider like Serilog or NLog. For example, with Serilog, you can set it up in Program.cs like this:

Log.Logger = new LoggerConfiguration()
    .WriteTo.File("logs/myapp.txt")
    .CreateLogger();