Program.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Configuration;
using Serilog;
using Splitio.Services.Client.Classes;
using Splitio.Services.Client.Interfaces;
using System;
using SplitExample;


var builder = WebApplication.CreateBuilder(args);

// Configure Serilog
builder.Host.UseSerilog((context, services, configuration) => configuration
    .ReadFrom.Configuration(context.Configuration)
    .ReadFrom.Services(services)
    .Enrich.FromLogContext());

// Configure Split.io client
var config = new ConfigurationOptions();
// Configure with a custom logger for detailed logging
config.Logger = new CustomLoggerImplementation();
var apiKey = builder.Configuration["SplitIO:ApiKey"] ?? throw new InvalidOperationException("SplitIO API key not found in configuration");
var factory = new SplitFactory(apiKey, config);
var splitClient = factory.Client();

try
{
    Log.Information("Initializing Split.io client...");
    splitClient.BlockUntilReady(10000);
    Log.Information("Split.io client is ready");
}
catch (Exception ex)
{
    Log.Error(ex, "Failed to initialize Split.io client");
}

// Register the Split.io client as a singleton service
builder.Services.AddSingleton<ISplitClient>(splitClient);

// Add services to the container
builder.Services.AddEndpointsApiExplorer();

var app = builder.Build();

// Configure the HTTP request pipeline
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/error");
    app.UseHsts();
}

app.UseHttpsRedirection();

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

// Example endpoint using Split.io
app.MapGet("/split-example/{userId}/{featureFlag}", (string userId, string featureFlag, ISplitClient client) =>
{
    var treatment = client.GetTreatment(userId, featureFlag);
    return $"User {userId} receives treatment '{treatment}' for feature '{featureFlag}'";
});

app.Run();