is-a-dev/dnsconfig.js

function getDomainsList(filesPath) {
    var result = [];
    var files = glob.apply(null, [filesPath, true, ".json"]);

    for (var i = 0; i < files.length; i++) {
        var name = files[i].split("/").pop().replace(/\.json$/, "");

        result.push({ name: name, data: require(files[i]) });
    }

    return result;
}

var domains = getDomainsList("./domains");
var records = [];

for (var subdomain in domains) {
    var subdomainName = domains[subdomain].name;
    var fullSubdomain = subdomainName + ".is-a.dev";
    var domainData = domains[subdomain].data;
    var proxyState = domainData.proxied ? CF_PROXY_ON : CF_PROXY_OFF;

    // Handle A records
    if (domainData.record.A) {
        for (var a in domainData.record.A) {
            records.push(A(subdomainName, IP(domainData.record.A[a]), proxyState));
        }
    }

    // Handle AAAA records
    if (domainData.record.AAAA) {
        for (var aaaa in domainData.record.AAAA) {
            records.push(AAAA(subdomainName, domainData.record.AAAA[aaaa], proxyState));
        }
    }

    // Handle CAA records
    if (domainData.record.CAA) {
        for (var caa in domainData.record.CAA) {
            var caaRecord = domainData.record.CAA[caa];
            records.push(CAA(subdomainName, caaRecord.flags, caaRecord.tag, caaRecord.value));
        }
    }

    // Handle CNAME records
    if (domainData.record.CNAME) {
        // Allow CNAME record on root
        if (subdomainName === "@") {
            records.push(ALIAS(subdomainName, domainData.record.CNAME + ".", proxyState));
        } else {
            records.push(CNAME(subdomainName, domainData.record.CNAME + ".", proxyState));
        }
    }

    // Handle DS records
    if (domainData.record.DS) {
        records.push(DS(subdomainName, domainData.record.DS.key_tag, domainData.record.DS.algorithm, domainData.record.DS.digest_type, domainData.record.DS.digest));
    }

    // Handle MX records
    if (domainData.record.MX) {
        for (var mx in domainData.record.MX) {
            records.push(MX(subdomainName, 10 + parseInt(mx), domainData.record.MX[mx] + "."));
        }
    }

    // Handle NS records
    if (domainData.record.NS) {
        for (var ns in domainData.record.NS) {
            records.push(NS(subdomainName, domainData.record.NS[ns] + "."));
        }
    }

    // Handle SRV records
    if (domainData.record.SRV) {
        for (var srv in domainData.record.SRV) {
            var srvRecord = domainData.record.SRV[srv];
            records.push(SRV(subdomainName, srvRecord.priority, srvRecord.weight, srvRecord.port, srvRecord.target + "."));
        }
    }

    // Handle TXT records
    if (domainData.record.TXT) {
        if (Array.isArray(domainData.record.TXT)) {
            for (var txt in domainData.record.TXT) {
                records.push(TXT(subdomainName, domainData.record.TXT[txt]));
            }
        } else {
            records.push(TXT(subdomainName, domainData.record.TXT));
        }
    }

    // Handle URL records
    if (domainData.record.URL) {
        records.push(A(subdomainName, IP("192.0.2.1"), CF_PROXY_ON));
    }

    // Handle reserved domains
    if (domainData.reserved) {
        records.push(TXT(subdomainName, "RESERVED"));
    }
}

var ignored = [
    IGNORE("@", "MX,TXT"),
    IGNORE("\\*"),
    IGNORE("_acme-challenge", "TXT"),
    IGNORE("_autodiscover._tcp", "SRV"),
    IGNORE("_dmarc", "TXT"),
    IGNORE("autoconfig", "CNAME"),
    IGNORE("autodiscover", "CNAME"),
    IGNORE("dkim._domainkey", "TXT")
]

D("is-a.dev", NewRegistrar("none", { no_ns: true }), DnsProvider(NewDnsProvider("cloudflare"), 0), ignored, records);