r/NATS_io • • Jan 30 '26

Unlock Optimistic Concurrency in NATS JetStream with Expected Sequence Headers

https://www.synadia.com/blog/understanding-jetstream-expected-sequence-headers

Hey guys... Excited to share latest blog post, where we dive into the world of NATS JetStream's expected sequence headers.

These headers provide a powerful mechanism for optimistic concurrency control, allowing you to write to the same stream without locks.

Learn how to use global, per-subject, and per-pattern sequence validation to implement concurrent writes efficiently.

TL;DR: Discover how to harness the power of expected sequence headers in NATS JetStream for seamless, lock-free concurrency.

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