añade inicio del back

back/back.Web/WeatherApiClient.cs

@@ -0,0 +1,29 @@
+namespace back.Web;
+
+public class WeatherApiClient(HttpClient httpClient)
+{
+    public async Task<WeatherForecast[]> GetWeatherAsync(int maxItems = 10, CancellationToken cancellationToken = default)
+    {
+        List<WeatherForecast>? forecasts = null;
+
+        await foreach (var forecast in httpClient.GetFromJsonAsAsyncEnumerable<WeatherForecast>("/weatherforecast", cancellationToken))
+        {
+            if (forecasts?.Count >= maxItems)
+            {
+                break;
+            }
+            if (forecast is not null)
+            {
+                forecasts ??= [];
+                forecasts.Add(forecast);
+            }
+        }
+
+        return forecasts?.ToArray() ?? [];
+    }
+}
+
+public record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
+{
+    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+}