Technology
Cloudflare Durable Objects
Globally-unique, single-threaded serverless instances providing strongly consistent state for distributed applications.
Durable Objects are unique Cloudflare Workers: they combine compute with transactional, strongly consistent storage. Each Object instance is globally-unique by ID, acting as a single-point-of-coordination for multiple clients, a critical feature for real-time applications like chat or collaborative editing. The platform guarantees only one instance exists worldwide for a given ID, ensuring strong consistency without the complexity of distributed locks. They scale elastically, support WebSockets and the Alarms API for scheduled tasks, and offer SQLite-backed storage options, effectively delivering stateful serverless at the edge.
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