VeevaVault - .NET Integration Guide (Part 1 - Creating and Persisting a VeevaVault Authorized Session) 2. May 2015 Dave Knipper ASP.NET, C#, REST, VeevaVault .NET Integration (3) This is essentially a tutorial on how to build a .NET REST Client. Before we can do anything with VeevaVault, we need to make sure we have a valid VeevaVault authorized session going. We will be using a .NET Web Application for these posts. 1. Create a set of simple POCs to hold the VeevaVault authorized session information. These classes hold the deserialized response from VeevaVault to hold authentication information. The classes almost always come back with these classes as response containers anyway.