@arturwojnar/hermes-postgresql/lib/common/createAsyncOpsQueue.js

Production-Ready TypeScript Outbox Pattern for PostgreSQL

import { CancellationPromise } from '@arturwojnar/hermes';
import { createSimpleQueue } from './createSimpleQueue.js';
const createAsyncOpsQueue = () => {
    const _ops = createSimpleQueue();
    let opInProgress = CancellationPromise.resolved();
    const queue = (op) => {
        _ops.queue(op);
        return op;
    };
    const waitFor = async (op) => {
        if (opInProgress.isPending) {
            await opInProgress;
        }
        opInProgress = new CancellationPromise();
        try {
            await op();
            _ops.remove(op);
        }
        finally {
            opInProgress.resolve();
        }
    };
    return { queue, waitFor };
};
export { createAsyncOpsQueue };
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