In one of the last posts, we saw how we can make a simple chat with ASP.NET Core SignalR and Angular 5. This time, we will use the same code from the backend and swap Angular with React on the frontend. There is also a post about making a simple SignalR app with pure ASP.NET Core stack, using Razor Pages with vanilla JavaScript on the client – ASP.NET Core SignalR simple chat. Most of the code should be the same, and because of that, we will focus mostly on the client side.