How to make SSE token streams resumable, cancellable, and multi-device
Summary
The article discusses the challenges of making Server-Sent Events (SSE) token streams durable for AI applications. It covers resumable streams, cancellations, and multi-device scenarios, highlighting the inefficiencies of per-token database writes and proposing a transport alternative (pub/sub) as a more reliable solution. It also compares SSE with dedicated messaging transports and provides technical guidance on implementing these features.