Deque

Why it matters: Supports bounded producer/consumer buffers, work-stealing, and algorithms that need both FIFO and LIFO access.

Durable double-ended collection with atomic push and pop operations at either end.

API endpoints

Method	Path	Description
POST	/v1/deques	Create a deque
POST	/v1/deques/:id/front	Push an item to the front
POST	/v1/deques/:id/back	Push an item to the back
POST	/v1/deques/:id/pop-front	Atomically pop the front item
POST	/v1/deques/:id/pop-back	Atomically pop the back item