Class to determine if a user is in the SharePoint group or is in the AD Group, which is added to the SharePoint group. So, the admin access to a custom SharePoint module is that everybody, who exists in the admin group, has more data. The admin group is a SharePoint group, which contains SPUsers (from domain) and Domain groups, which contain AD Users. Actual for SharePoint 2016, 2019.

In apps with different Roles and permissions you may need to get information about AD Groups. Here are some snippets which can help you with this part of the task.

When you make a SharePoint 2019 on-premises solution, you can make not only SPFX solutions, but also old-school WSP-solutions. It allows you not only to use SharePoint API, but also to use your own API services. With SharePoint 2019 you can use WCF service. For example, it’s a good way when you develop an application which uses the external database. This works also for SharePoint 2013 and SharePoint 2016.

You can add the service with PowerShell. New-Service and Get-service are available in PowerShell 5, for 'Remove-Service' PowerShell >= 6 required. Otherwise you can use 'sc.exe DELETE MyMegaServiceApplication'. You should execute it with as an administrator. Not any application you can start a service. As a .Net developer, I usually create .Net solutions, in this case you should create application based on 'worker service' template in VS 2022 or any other IDE.

I will write down the useful method. I used it several times and it works good. It's C# method to create a UNC directory recursively and return the path.

If you want to write an application which uses RabbitMQ, I advise you to use docker image of Rabbit. It's lightweight and can be easily executed.

Create a console app with .Net Framework 4.7.2 with Dapper and datasource in MSSQL Server or PostgreSQL.

If you create this ancient app, you should only add Dapper and NPGSQL packages from Nuget. The support of MS SQL Server is already built in. The scenario for .Net Framework is from real life, several applications still require this framework.

Once I tried to make the application to migrate a custom data source from SharePoint 2010 to SharePoint 2019 on-premise. To make it easier, I decided to make to separate solutions – the first one to export the data from SharePoint 2010 from the list to JSON and attachments to local folder(CSOM for SharePoint 2010 sucks) and the utility to import data to SharePoint 2019 via REST.

Once again I decided to make a new task from LeetCode and finally my process had been stopped. I could not convert Char to Int. I even spent some time for research, but I could not find any solution. Then I open the documentation and started to read.

In my application I had rendered JSON data with AngularJS and I had to send it to a controller in my MVC application to render PDF file and to allow a user to save it. So, the task was dynamically to submit the request, render a file and allow user to save it.