A project called "ServiceKom" an online digital service market, which is an intermediary between the seller and the buyer, the latter can communicate with the seller via the chat to make exchanges about his needs. i work this project with ASP.Net Core Mvc And My SQL Also i work with Signal-R to build a real time chat application.
You can check the website here: http://majiartista-001-site1.btempurl.com/