@arturwojnar/hermes-postgresql/lib/subscribeToReplicationSlot/processBeginMessage.js

Production-Ready TypeScript Outbox Pattern for PostgreSQL

import { toTimestamp } from '../common/helpers.js';
import { constructLsn } from '../common/lsn.js';
import { offset } from '../common/offset.js';
import { Bytes, MessageType, TopLevelType } from './types.js';
const processBeginMessage = (data) => {
    const pos = offset(Bytes.Int8);
    const lsn = constructLsn(data.subarray(1, 9));
    const timestamp = toTimestamp(data.readBigInt64BE(pos.addInt64()));
    const transactionId = data.readUInt32BE(pos.addInt64());
    return {
        topLevelType: TopLevelType.XLogData,
        messageType: MessageType.Begin,
        transactionId,
        lsn,
        timestamp,
    };
};
export { processBeginMessage };
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