SeriLog Set-up In Web API

You can use below code

using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;
using Serilog;
using System;

var builder = WebApplication.CreateBuilder(args);

// Configure Serilog
Log.Logger = new LoggerConfiguration()
    .WriteTo.Console()
    .WriteTo.Database("", "")
    .CreateLogger();

builder.Host.UseSerilog();

// Additional configurations for your web application

var app = builder.Build();

app.MapGet("/", () => "Hello World!");

app.Run();

using Microsoft.AspNetCore.Mvc;
using Serilog;

[ApiController]
[Route("api/[controller]")]
public class SampleController : ControllerBase
{
    private readonly ILogger _logger;

    public SampleController(ILogger logger)
    {
        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
    }

    [HttpGet]
    public IActionResult Get()
    {
        _logger.Information("Sample log message from controller.");
        return Ok("Sample log message written.");
    }
}