Update DNS Record

//native

export type DynSelect_zone_id = string

// Dropdown of the account's zones so users pick a domain instead of pasting its 32-char id.

// ponytail: first 50 zones only (API max per_page); paste the id directly beyond that.

export async function zone_id(auth: RT.Cloudflare) {

  const response = await fetch(

    "https://api.cloudflare.com/client/v4/zones?per_page=50",

    {

      headers: {

        Authorization: `Bearer ${auth.token}`,

        Accept: "application/json",

      },

    }

  )

  if (!response.ok) {

    throw new Error(`${response.status} ${await response.text()}`)

  }

  const { result } = (await response.json()) as {

    result: { id: string; name: string }[]

  }

  return result.map((z) => ({ value: z.id, label: z.name }))

}

/**

 * Update DNS Record

 * Patch a DNS record: only the fields you set are changed.

 */

export async function main(

  auth: RT.Cloudflare,

  zone_id: DynSelect_zone_id,

  dns_record_id: string,

  body: {

    type?: string

    name?: string

    content?: string

    ttl?: number

    proxied?: "keep" | "true" | "false"

    priority?: number

    comment?: string

  }

) {

  // The run form fills untouched sub-fields with "", so drop empty values instead of blanking the record.

  const { proxied, ...rest } = body

  const patch: { [key: string]: any } = Object.fromEntries(

    Object.entries(rest).filter(([, v]) => v != null && v !== "")

  )

  if (proxied === "true" || proxied === "false") {

    patch.proxied = proxied === "true"

  }

  const response = await fetch(

    `https://api.cloudflare.com/client/v4/zones/${zone_id}/dns_records/${dns_record_id}`,

    {

      method: "PATCH",

      headers: {

        Authorization: `Bearer ${auth.token}`,

        "Content-Type": "application/json",

        Accept: "application/json",

      },

      body: JSON.stringify(patch),

    }

  )

  if (!response.ok) {

    throw new Error(`${response.status} ${await response.text()}`)

  }

  return await response.json()

}