@arturwojnar/hermes-mongodb/lib/versionPolicies.js

Production-Ready TypeScript Outbox Pattern for MongoDB

import { NotSupportedMongoVersionError, parseSemVer } from '@arturwojnar/hermes';
import { SupportedMajorMongoVersions } from './consts.js';
export const generateVersionPolicies = async (db) => {
    const buildInfo = (await db.admin().buildInfo());
    const semver = parseSemVer(buildInfo.version);
    const major = semver.major || 0;
    const throwNotSupportedError = () => {
        throw new NotSupportedMongoVersionError({
            currentVersion: buildInfo.version,
            supportedVersions: SupportedMajorMongoVersions,
        });
    };
    const supportedVersionCheckPolicy = () => {
        if (major < 5) {
            throwNotSupportedError();
        }
    };
    const changeStreamFullDocumentValuePolicy = (() => {
        if (major >= 6) {
            return 'whenAvailable';
        }
        else if (major === 5) {
            return 'updateLookup';
        }
        else {
            throwNotSupportedError();
        }
    });
    return {
        supportedVersionCheckPolicy,
        changeStreamFullDocumentValuePolicy,
    };
};
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