如何获取Zone ID 及 API Key参考：https://zhuanlan.zhihu.com/p/69379645

#api key:FGhh70xa4LFy4gZzHibAOL1Yoy1-SFQ1glZrmxxx
#zone id：7325cc65280f73b3573bd3ec03bb3xxx

检测key是否正常

    curl -X GET "https://api.cloudflare.com/client/v4/user/tokens/verify" \
     -H "Authorization: Bearer FGhh70xa4LFy4gZzHibAOL1Yoy1-SFQ1glZrmxxx" \
     -H "Content-Type:application/json"

获取dns记录详细列表（此处可以获取到对应域名的identifier值）

curl --request GET \
  --url https://api.cloudflare.com/client/v4/zones/7325cc65280f73b3573bd3ec03bb3xxx/dns_records \
     -H "Authorization: Bearer FGhh70xa4LFy4gZzHibAOL1Yoy1-SFQ1glZrmxxx" \
     -H "Content-Type:application/json"

#返回结果：
{
    "result": [
        {
            "id": "bcf1f4d63adbd02919a07ae10c1cbxxx",
            "zone_id": "7325cc65280f73b3573bd3ec03bb3xxx",
            "zone_name": "cqgyd.com",
            "name": "chat.cqgyd.com",
            "type": "A",
            "content": "167.160.189.46",
            "proxiable": true,
            "proxied": false,
            "ttl": 1,
            "locked": false,
            "meta": {
                "auto_added": false,
                "managed_by_apps": false,
                "managed_by_argo_tunnel": false,
                "source": "primary"
            },
            "comment": null,
            "tags": [],
            "created_on": "2023-06-01T13:18:20.56627Z",
            "modified_on": "2023-07-06T02:06:23.918585Z"
        },
        {
            "id": "4d27a8e2ed76bcf42481cb1b52292492",
            "zone_id": "7325cc65280f73b3573bd3ec03bb3xxx",
            "zone_name": "cqgyd.com",
            "name": "cqgyd.com",
            "type": "A",
            "content": "147.103.120.250",
            "proxiable": true,
            "proxied": false,
            ... ...

或者获取指定域名的信息（nas.cqgyd.com)

curl --location 'https://api.cloudflare.com/client/v4/zones/7325cc65280f73b3573bd3ec03bb3xxx/dns_records?name=nas.cqgyd.com' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer FGhh70xa4LFy4gZzHibAOL1Yoy1-SFQ1glZrmxxx' 

#返回
{
    "result": [
        {
            "id": "4123f6a77aa11833d7ae4f3110cf0xxx",
            "zone_id": "7325cc65280f73b3573bd3ec03bb3xxx",
            "zone_name": "cqgyd.com",
            "name": "nas.cqgyd.com",
            "type": "A",
            "content": "27.10.192.184",
            "proxiable": true,
            "proxied": false,
            "ttl": 1,
            "locked": false,
            "meta": {
                "auto_added": false,
                "managed_by_apps": false,
                "managed_by_argo_tunnel": false,
                "source": "primary"
            },
            "comment": null,
            "tags": [],
            "created_on": "2023-09-04T09:05:17.593395Z",
            "modified_on": "2023-09-04T09:05:17.593395Z"
        }
    ],
    "success": true,
    "errors": [],
    "messages": [],
    "result_info": {
        "page": 1,
        "per_page": 100,
        "count": 1,
        "total_count": 1,
        "total_pages": 1
    }
}

更新域名chat.cqgyd.com的ip

通过如上方法能获取到对应域名的identifier值。

identifier ：bcf1f4d63adbd02919a07ae10c1cbxxx

修改解析的ip到对应域名上

curl --request PUT \
  --url https://api.cloudflare.com/client/v4/zones/7325cc65280f73b3573bd3ec03bb3xxx/dns_records/bcf1f4d63adbd02919a07ae10c1cbxxx \
     -H "Authorization: Bearer FGhh70xa4LFy4gZzHibAOL1Yoy1-SFQ1glZrmxxx" \
     -H "Content-Type:application/json" \
  --data '{
  "content": "198.51.100.4",
  "name": "chat.cqgyd.com",
  "proxied": false,
  "type": "A",
  "comment": "Domain verification record",
  "ttl": 3600
}'

官方api参考文档：https://developers.cloudflare.com/api/operations/dns-records-for-a-zone-list-dns-records

可以采用DDNS-GO的方式来自动更新域名ip。参考：https://github.com/jeessy2/ddns-go