Implement Open Weather Map API data pull

BeeWeatherPollenTracker/App.config

 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <configSections>
-        <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
-        <section name="entityFramework"
-          type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
-          requirePermission="false"/>
-    </configSections>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2"/>
-    </startup>
-    <entityFramework>
-        <providers>
-            <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
-        </providers>
-    </entityFramework>
+    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
+    <section name="entityFramework"
+      type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
+      requirePermission="false" />
+  </configSections>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+  </startup>
+  <entityFramework>
+    <providers>
+      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
+    </providers>
+  </entityFramework>
+  <appSettings>
+    <!-- ... -->
+    <add key="CityId" value="2925533" />
+    <!-- ... -->
+  </appSettings>
 </configuration>
\ No newline at end of file

BeeWeatherPollenTracker/BeeWeatherPollenTracker.csproj

@@ -42,8 +42,12 @@
     <Reference Include="EntityFramework.SqlServer, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
       <HintPath>..\packages\EntityFramework.6.4.0\lib\net45\EntityFramework.SqlServer.dll</HintPath>
     </Reference>
+    <Reference Include="Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\packages\WeatherNet.2.1\lib\Newtonsoft.Json.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
@@ -51,6 +55,9 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
+    <Reference Include="WeatherNet, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\WeatherNet.2.1\lib\WeatherNet.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Program.cs" />

BeeWeatherPollenTracker/Program.cs

 using System;
 using System.Collections.Generic;
+using System.Configuration;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using WeatherNet;
+using WeatherNet.Clients;
 
 namespace BeeWeatherPollenTracker
 {
-    class Program
+    internal static class Program
     {
-        static void Main(string[] args)
+        private const string OPEN_WEATHER_MAP_API_KEY = "3f80e65ed0609e7e52737e65d522aed8";
+        private const double FORECAST_LENGTH = 3.0;
+
+        private static void Main(string[] args)
         {
+            // Set up API KEY
+            ClientSettings.SetApiKey(OPEN_WEATHER_MAP_API_KEY);
+
+            // Retrieve forecast data from from OWM API
+            var cityId = int.Parse(ConfigurationManager.AppSettings["CityId"]);
+            var apiResults = FiveDaysForecast.GetByCityId(cityId);
+            if (!apiResults.Success)
+            {
+                throw new ApplicationException(apiResults.Message);
+            }
+
+            // Filter: keep only 3 next days forecast
+            var forecast = apiResults.Items
+                .Where(x => x.Date < DateTime.Now.AddDays(FORECAST_LENGTH))
+                .ToList();
         }
     }
-}
+}
\ No newline at end of file

BeeWeatherPollenTracker/packages.config

 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="EntityFramework" version="6.4.0" targetFramework="net472" />
+  <package id="WeatherNet" version="2.1" targetFramework="net472" />
 </packages>
\ No newline at end of file