AADInstance null in CSP and CPV examples

[dkattan]

Overview

Samples don't work out of the box even when populating App.config with valid parameters

Reproduction

Create App Registration in a Patrner tenant using the following script: https://gcits.com/knowledge-base/how-to-connect-to-delegated-office-365-tenants-using-the-secure-app-model/

Clone repo, plugin parameters returned from script into App.config

Expected Behavior

The application should not throw an except

Actual Behavior

Exception is thrown because AADInstance variable is null

Possible solutions

Change the following lines from

private static readonly string AADInstance = ConfigurationManager.AppSettings["AADInstance"];

to private static readonly string AADInstance = ConfigurationManager.AppSettings["ida:AADInstance"];

https://github.com/microsoft/Partner-Center-DotNet-Samples/blob/007fec51341363ecf54f82fcf732186265f7f452/secure-app-model/keyvault/CSPApplication/Program.cs#L38

https://github.com/microsoft/Partner-Center-DotNet-Samples/blob/007fec51341363ecf54f82fcf732186265f7f452/secure-app-model/keyvault/CPVApplication/Program.cs#L26