Entity Framework Core Cookbook - Second Edition

Implementing the unit of work pattern

In the next example, we present an implementation of the Unit of Work pattern. This pattern was introduced by Martin Fowler, and you can read about it at http://martinfowler.com/eaaCatalog/unitOfWork.html. Basically, this pattern states that we keep track of all entities that are affected by a business transaction and send them all at once to the database, sorting out the ordering of the changes to apply—inserts before updates, and so on.

Getting ready

We will be using the NuGet Package Manager to install the Entity Framework Core 1 package, Microsoft.EntityFrameworkCore. We will also be using a SQL Server database for storing the data, so we will also need Microsoft.EntityFrameworkCore.SqlServer.

To mock interfaces ...