JavaScript Cloudflare API update IPFS dnslink subdomain

cloudflare.test.ts

import { Cloudflare } from './Cloudflare'

describe('cloudflare', () => {
  it('should get record if for dnslink domain', async () => {
    const cloudflare = new Cloudflare()
    const dnslinkDomain = '_dnslink.example.com'
    const recordId = await cloudflare.getRecordId(dnslinkDomain)
    console.log(recordId)
    expect(recordId).toBeTruthy()
  })

  it('should update dnslink record', async () => {
    const cloudflare = new Cloudflare()
    const dnslinkDomain = '_dnslink.example.com'
    const ipfsHash = 'Qmdk2pY1hyibv7AhMUr9xZvJLcfwzjXU58wRVnwHAkUUUc'
    const res = await cloudflare.updateDnslink(dnslinkDomain, ipfsHash)
    console.log(res)
    expect(res).toBeTruthy()
  })
})

Cloudflare.ts

import fetch from 'isomorphic-fetch'
require('dotenv').config()

const CLOUDFLARE_ZONE_ID = process.env.CLOUDFLARE_ZONE_ID
const CLOUDFLARE_TOKEN = process.env.CLOUDFLARE_TOKEN

export class Cloudflare {
  async getRecordId(dnslinkDomain: string) {
    const url = `https://api.cloudflare.com/client/v4/zones/${CLOUDFLARE_ZONE_ID}/dns_records?name=${dnslinkDomain}`
    const res = await fetch(url, {
      headers: {
        Authorization: `Bearer ${CLOUDFLARE_TOKEN}`,
        'Content-Type': 'application/json'
      }
    })

    const json = await res.json()
    if (!json.success) {
      throw new Error('no success')
    }

    const id = json.result?.[0]?.id
    if (!id) {
      throw new Error('no id found')
    }

    return id
  }

  async updateDnslink (dnslinkDomain: string, ipfsHash: string) {
    if (!dnslinkDomain.startsWith('_dnslink')) {
      throw new Error('invalid dnslink domain')
    }

    const recordId = await this.getRecordId(dnslinkDomain)
    const url = `https://api.cloudflare.com/client/v4/zones/${CLOUDFLARE_ZONE_ID}/dns_records/${recordId}`
    const res = await fetch(url, {
      method: 'PUT',
      headers: {
        Authorization: `Bearer ${CLOUDFLARE_TOKEN}`,
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        type: 'TXT',
        name: dnslinkDomain,
        content: `dnslink=ipfs/${ipfsHash}`
      })
    })

    const json = await res.json()
    if (!json.success) {
      throw new Error('no success')
    }

    const result = json.result
    if (!result) {
      throw new Error('no result')
    }

    return result
  }
}