加入專案檔案。

CoreProfilerExample.Service/Extensions/MapperExtension.cs

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+using CoreProfilerExample.Repository.Models.DataModels;
+using CoreProfilerExample.Service.Models.Dtos;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CoreProfilerExample.Service.Extensions
+{
+    public static class MapperExtension
+    {
+        public static async Task<GetWeatherForecastDto> ToDtoAsync(this Task<IEnumerable<WeatherForecastDataModel>> task)
+        {
+            var dataModels = await task;
+
+            return new GetWeatherForecastDto
+            {
+                WeatherForecasts = dataModels.Select(model => model.ToDto()),
+            };
+        }
+
+        public static GetWeatherForecastItemDto ToDto(this WeatherForecastDataModel dataModel)
+        {
+            return new GetWeatherForecastItemDto
+            {
+                Date = dataModel.Date,
+                Summary = dataModel.Summary,
+                TemperatureC = dataModel.TemperatureC,
+            };
+        }
+    }
+}