13. HttpClient correctly: IHttpClientFactory and resilience

builder.Services.AddHttpClient<IWeatherClient, WeatherClient>(c =>
{
    c.BaseAddress = new Uri("https://api.weather.example/");
    c.Timeout = TimeSpan.FromSeconds(10);
}).AddStandardResilienceHandler();

public class WeatherClient(HttpClient http) : IWeatherClient
{
    public Task<Forecast?> GetAsync(string city, CancellationToken ct) =>
        http.GetFromJsonAsync<Forecast>($"forecast?city={Uri.EscapeDataString(city)}", ct);
}