Live-Coding a Dashboard with KSQL, Python & JavaScript

on YouTube ↗38m

" summary

Builds a one-row rolling total from a Kafka purchases stream using KSQL create table + EMIT CHANGES then streams updates to clients. Runs a Python WebSocket server using confluent-kafka deserializing consumer and a simple broadcast with a threading lock to avoid races. Connects a React frontend WebSocket client that parses JSON and formats the total. Entire demo completes live in about 22–30 minutes and successfully shows real-time totals.

AI-written summary · about

" chapters (5)

1. 0:00Intro
2. 0:58Startup life
3. 2:30Demo/Live-coding
4. 35:19Conclusion
5. 37:34Outro

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