taoensso/sente

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1791 stars · 194 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Sente is a client+server realtime web communications library for Clojure and ClojureScript, inspired by Socket.IO. It provides a unified high-level API over WebSockets with automatic Ajax fallback, built on core.async for reliable bidirectional messaging and server push.

Use cases

• build realtime chat applications in Clojure/ClojureScript
• push server events to connected browsers
• bidirectional client-server messaging with ack/reply support
• track which users are connected and over which protocols
• send arbitrary Clojure data structures over the wire
• add realtime updates to a Ring-based web app
• support users connected from multiple devices simultaneously

When to choose

• you're building a full-stack Clojure/ClojureScript web app needing realtime comms
• you want WebSockets with automatic Ajax fallback and reconnect handling
• you prefer a small unified API over raw WebSocket management
• you want to send Clojure data with efficient binary serialization
• you need Ring-compatible security, auth, and CSRF integration

When to avoid

• your stack is not Clojure/ClojureScript
• you only need simple one-way HTTP polling without realtime push
• you need a language-agnostic protocol like plain WebSockets or gRPC shared with non-Clojure clients
• you want a batteries-included realtime backend service rather than a library

Facets

library · maturity active

websocket http-client serialization middleware web-development backend frontend jvm-scripting jvm browser core-async ajax-fallback socket-io-inspired ring transit edn bidirectional-comms server-push real-time clojurescript nodejs web-server

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