Setu-TS
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    Class DistributedLockObjectCore

    Serializes lock acquisition for one key.

    One Durable Object per lock key, and a Durable Object executes one request at a time — which is what makes the read-compare-write below atomic without a transaction, and what makes this a genuine distributed lock rather than a best-effort one.

    The holder record lives in state.storage, never in a field. A Durable Object is evicted after 70–140 seconds of inactivity when it cannot hibernate, and a lock TTL routinely outlives that; a deadline held in memory would evaporate on eviction and hand the same lock to a second holder, which is precisely the failure a distributed lock exists to prevent.

    import { DurableObject } from 'cloudflare:workers';
    import { DistributedLockObjectCore } from '@setu-ts/cloudflare-plugin';

    export class DistributedLockObject extends DurableObject {
      #core = new DistributedLockObjectCore(this.ctx);

      override fetch(request: Request): Promise<Response> {
        return this.#core.fetch(request);
      }
    }

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