Building a real-time serverless app in Blazor using AWS

on YouTube ↗57m

" summary

Builds an interactive Blazor WebAssembly dashboard that reacts in real time using API Gateway WebSocket, three Lambda functions (onConnect, send, disconnect), and a DynamoDB connection table that stores connection IDs; server pushes use the gateway’s connection URL to post to specific clients. Compares this serverless approach to SignalR with a Redis backplane, reports the demo cost near zero (API Gateway ~<$1 per million requests, Lambda free tier), and shows a working prototype that scales to thousands without managing servers.

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" chapters (15)

1. 0:00Introduction
2. 2:36Understanding real-time
3. 10:48SignalR on AWS
4. 15:12Live demo and challenges
5. 18:45Scaling with backplanes
6. 21:40Serverless WebSockets
7. 25:01Architecting with Lambda
8. 29:02API Gateway configuration
9. 31:44Serverless demo
10. 34:13Hosting with Amplify
11. 36:48Blazor overview
12. 39:02Building with Blazor
13. 45:32Connecting Blazor to AWS
14. 51:45Final demo and cost analysis
15. 54:59Conclusion and QA

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