Is it okay to use SignalR for real-time data display?

Question

ASP.NET

Hello. Suppose there is a front on Ang 7 and a back on ASP Core. At the front, there is a dashboard - a large table displaying information about sensor readings with graphs. CRU-d- operations are available. Accordingly, a plurality of users or other sources of information may modify the data. This data must be updated in real time for all users in the dashboard.
I see 3 ways:

• constantly pull Web API on the front
  
• listen on the SignalR front, which, when data changes, will send a message to the front stating that you need to pull the API to get up-to-date data <--- according to my most norms
  
• as in the paragraph above, only SignalR does not notify about changes, but itself transmits these changes
  

Which method is correct? What are the alternatives?

Answer 1

I would prefer the option that the signal sends a message to the client that the data on the back has been updated, even with a data type, and the client already decides when and what type of data to update (pull api on the back with data).