pg-transactional-outbox
Version:
A PostgreSQL based transactional outbox and inbox pattern implementation to support exactly once message processing (with at least once message delivery).
12 lines • 543 B
TypeScript
import { TransactionalMessage } from '../../message/transactional-message';
/**
* A concurrency controller that defines how concurrency must be handled when
* processing messages: in parallel and/or sequentially or use some other logic.
*/
export interface ReplicationConcurrencyController {
/** Acquire a lock (if any) and return a function to release it. */
acquire(message: TransactionalMessage): Promise<() => void>;
/** Cancel all pending locks. */
cancel(): void;
}
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