Server-Sent Events with FastAPI
SSE is the standard for streaming data from server to client over HTTP. Server pushes the update to the client
Built a real-time news stream processing engine supporting infinite publisher streams, windowed aggregations, compile-once transformations, SSE delivery, and backpressure-aware async pipelines.
Real-Time News Stream Processing Engine” That gives you:
continuous event streams windows transforms fanout prioritization backpressure infinite producers
without sounding like observability/log infrastructure.
Why News Works Well
News naturally behaves like streaming events.
Example event:
{ “source”: “Reuters”, “category”: “technology”, “headline”: “AI chip demand rises”, “timestamp”: … }
You can simulate:
multiple publishers breaking news bursts category subscriptions rolling trends live feeds
Very realistic for stream systems.
Mapping from Log Concepts → News Concepts Streaming System Concept News Equivalent log event news article producer publisher severity priority stream live feed aggregation trend analysis alerts breaking news fanout subscribers filtering topic/category filters Your Architecture Becomes News Publishers ↓ Ingress Queue ↓ Normalizer ↓ Transform Engine ↓ Window Aggregator ↓ Subscriber Queues ↓ SSE Clients
Looks clean and product-oriented. Infinite Loop Producers Each publisher continuously emits articles:
while running: article = generate_news() await ingress_queue.put(article)