Implementing Map/Reduce with PLINQ

This recipe will describe how to implement the Map/Reduce pattern while using PLINQ.

Getting ready

To begin this recipe, you will need to run Visual Studio 2015. There are no other prerequisites. The source code for this recipe can be found at BookSamples\Chapter10\Recipe4.

How to do it...

To understand how to implement Map/Reduce with PLINQ, perform the following steps:

1. Start Visual Studio 2015. Create a new C# console application project.

2. In the Program.cs file, add the following using directives:

   using System;
   using System.Collections.Generic;
   using System.IO;
   using System.Linq;
   using System.Net.Http;
   using System.Text;
   using System.Threading.Tasks;
   
   using Newtonsoft.Json;
   
   using static System.Console;

3. Add references to the Newtonsoft.Json NuGet package and the System.Net.Http assembly.

4. Add the following code snippet below the Main method:

   static char[] delimiters = { ' ', ',', ';', ':', '\"', '.' };
   
   async static Task<string> ProcessBookAsync(
       string...