December 2019
Intermediate to advanced
598 pages
12h 21m
English
Content preview from ASP.NET Core 3 and React
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Pushing data to SignalR clients from an API controller
Arguably the most valuable piece of our real-time API is pushing new answers to subscribed clients. In this section, we are going to learn how to do this. If we think about it, the ideal place to do this is in the questions API controller, which is where an answer is posted. So, when an answer is posted, we want SignalR to push the updated question with the saved answer to all the clients that are subscribed to the question. Let's implement this by carrying out the following steps in QuestionsController.cs:
- We'll start by referencing SignalR and our SignalR hub with using statements:
using Microsoft.AspNetCore.SignalR;using QandA.Hubs;
- We are going to inject the context of the hub ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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