@alltiptop/geoip-3xui-rules/dist/utils/buildDomainRule.js

Middleware server to set routing rules by countries for XRAY

import punycode from 'punycode';
export const buildDomainRule = (tlds) => {
    if (!tlds.length)
        return null;
    const rawDomains = tlds.map((domainSuffix) => punycode.toASCII(domainSuffix));
    const domains = rawDomains.map((domain) => `domain:${domain}`) || [];
    return { type: 'field', domain: domains, outboundTag: 'direct' };
};