First commit.

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+build/
+bld/
+[Bb]in/
+[Oo]bj/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+artifacts/
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Microsoft Azure ApplicationInsights config file
+ApplicationInsights.config
+
+# Windows Store app package directory
+AppPackages/
+BundleArtifacts/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+
+# FAKE - F# Make
+.fake/
+Dewdrop/ScaffoldingReadMe.txt

Dewdrop.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26430.16
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Dewdrop", "Dewdrop\Dewdrop.csproj", "{0DEC7A86-4D43-43B0-A5F8-7686DDB6EC97}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0DEC7A86-4D43-43B0-A5F8-7686DDB6EC97}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0DEC7A86-4D43-43B0-A5F8-7686DDB6EC97}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0DEC7A86-4D43-43B0-A5F8-7686DDB6EC97}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0DEC7A86-4D43-43B0-A5F8-7686DDB6EC97}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

Dewdrop/Controllers/CheckController.cs

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+using System;
+using System.Net.Http;
+using Microsoft.AspNetCore.Mvc;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using System.Collections.Generic;
+using Dewdrop.Models;
+
+namespace Dewdrop.Controllers
+{
+    [Produces("application/json")]
+    [Route("api/check")]
+    public class CheckController : Controller
+    {
+        [HttpPost]
+        public async Task<string> Post([FromBody] NexusResponseModel[] mods)
+        {
+            using (var client = new HttpClient())
+            {
+                // the return array of mods
+                var modList = new List<ModGenericModel>();
+
+                foreach (var mod in mods)
+                {
+                    try
+                    {
+                        // create request with HttpRequestMessage
+                        var request = new HttpRequestMessage(HttpMethod.Get, new Uri($"http://www.nexusmods.com/stardewvalley/mods/{mod.Id}"));
+
+                        // add the Nexus Client useragent to get JSON response from the site
+                        request.Headers.UserAgent.ParseAdd("Nexus Client v0.63.15");
+
+                        // send the request out
+                        var response = await client.SendAsync(request);
+                        // ensure the response is valid (throws exception)
+                        response.EnsureSuccessStatusCode();
+
+                        // get the JSON string of the response
+                        var stringResponse = await response.Content.ReadAsStringAsync();
+
+                        // create the mod data from the JSON string
+                        var modData = JsonConvert.DeserializeObject<NexusResponseModel>(stringResponse);
+
+                        // add to the list of mods
+                        modList.Add(modData.ModInfo());
+                    }
+                    catch (Exception ex)
+                    {
+                        var modData = mod.ModInfo();
+                        modData.Valid = false;
+
+                        modList.Add(modData);
+                    }
+                }
+
+                return JsonConvert.SerializeObject(modList, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore });
+            }
+        }
+    }
+}

Dewdrop/Dewdrop.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp1.1</TargetFramework>
+    <PackageTargetFallback>portable-net45+win8</PackageTargetFallback>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore" Version="1.1.2" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.3" />
+    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="1.1.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="1.1.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="1.1.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer.Design" Version="1.1.2" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="1.1.2" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink" Version="1.1.2" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="1.1.1" />
+  </ItemGroup>
+  <ItemGroup>
+    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="1.0.1" />
+  </ItemGroup>
+
+</Project>

Dewdrop/Models/IModModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Dewdrop.Models
+{
+    interface IModModel
+    {
+        /// <summary>
+        /// Basic information in the form of <see cref="ModGenericModel"/> 
+        /// </summary>
+        /// <returns><see cref="ModGenericModel"/></returns>
+        ModGenericModel ModInfo();
+    }
+}

Dewdrop/Models/ModGenericModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Dewdrop.Models
+{
+    public class ModGenericModel
+    {
+        /// <summary>
+        /// An identifier for the mod.
+        /// </summary>
+        public int Id { get; set; }
+
+        /// <summary>
+        /// The mod's name.
+        /// </summary>
+        public string Name { get; set; }
+
+        /// <summary>
+        /// The vendor identifier for the mod.
+        /// </summary>
+        public string Vendor { get; set; }
+
+        /// <summary>
+        /// The mod's version number.
+        /// </summary>
+        public string Version { get; set; }
+
+        /// <summary>
+        /// The mod's URL
+        /// </summary>
+        public string Url { get; set; }
+
+        /// <summary>
+        /// Is the mod a valid mod.
+        /// </summary>
+        public bool Valid { get; set; } = true;
+    }
+}

Dewdrop/Models/NexusResponseModel.cs

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+using System;
+using Newtonsoft.Json;
+
+namespace Dewdrop.Models
+{
+    public class NexusResponseModel : IModModel
+    {
+        /// <summary>
+        /// The name of the mod.
+        /// </summary>
+        [JsonProperty("name")]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// The version of the mod.
+        /// </summary>
+        [JsonProperty("version")]
+        public string Version { get; set; }
+
+        /// <summary>
+        /// The NexusMod ID for the mod.
+        /// </summary>
+        [JsonProperty("id")]
+        public int Id { get; set; }
+
+        /// <summary>
+        /// The URL of the mod.
+        /// </summary>
+        [JsonProperty("mod_page_uri")]
+        public string Url { get; set; }
+
+        /// <summary>
+        /// Return mod information about a Nexus mod
+        /// </summary>
+        /// <returns><see cref="ModGenericModel"/></returns>
+        public ModGenericModel ModInfo()
+        {
+            return new ModGenericModel
+            {
+                Id = Id,
+                Version = Version,
+                Name = Name,
+                Url = Url,
+                Vendor = "Nexus"
+            };
+        }
+    }
+}

Dewdrop/Program.cs

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+using System;
+using System.IO;
+using System.Net.Http;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Newtonsoft.Json;
+using System.Collections.Generic;
+
+namespace Dewdrop
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            var host = new WebHostBuilder()
+                .UseKestrel()
+                .UseContentRoot(Directory.GetCurrentDirectory())
+                .UseIISIntegration()
+                .UseStartup<Startup>()
+                .UseApplicationInsights()
+                .Build();
+
+            host.Run();
+        }
+    }
+}

Dewdrop/Properties/launchSettings.json

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+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:59482/",
+      "sslPort": 0
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "api/check",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Dewdrop": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "api/check",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "http://localhost:59483"
+    }
+  }
+}

Dewdrop/Startup.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Dewdrop
+{
+    public class Startup
+    {
+        public Startup(IHostingEnvironment env)
+        {
+            var builder = new ConfigurationBuilder()
+                .SetBasePath(env.ContentRootPath)
+                .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
+                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
+                .AddEnvironmentVariables();
+            Configuration = builder.Build();
+        }
+
+        public IConfigurationRoot Configuration { get; }
+
+        // This method gets called by the runtime. Use this method to add services to the container.
+        public void ConfigureServices(IServiceCollection services)
+        {
+            // Add framework services.
+            services.AddMvc();
+        }
+
+        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
+        {
+            loggerFactory.AddConsole(Configuration.GetSection("Logging"));
+            loggerFactory.AddDebug();
+
+            app.UseMvc();
+        }
+    }
+}

Dewdrop/appsettings.Development.json

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+{
+  "Logging": {
+    "IncludeScopes": false,
+    "LogLevel": {
+      "Default": "Debug",
+      "System": "Information",
+      "Microsoft": "Information"
+    }
+  }
+}

Dewdrop/appsettings.json

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+{
+  "Logging": {
+    "IncludeScopes": false,
+    "LogLevel": {
+      "Default": "Warning"
+    }
+  }
+}