项目结构目录规划。

src/HelloShop.WebApp/WeatherApiClient.cs

@@ -0,0 +1,14 @@
+namespace HelloShop.WebApp;
+
+public class WeatherApiClient(HttpClient httpClient)
+{
+    public async Task<WeatherForecast[]> GetWeatherAsync()
+    {
+        return await httpClient.GetFromJsonAsync<WeatherForecast[]>("/weatherforecast") ?? [];
+    }
+}
+
+public record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
+{
+    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+}