Update a WAF rule

type Cloudflare = {

  token: string;

  email: string;

  key: string;

};

/**

 * Update a WAF rule

 * Updates a WAF rule. You can only update the mode/action of the rule.

**Note:** Applies only to the [previous version of WAF managed rules](https://developers.cloudflare.com/support/firewall/managed-rules-web-application-firewall-waf/understanding-waf-managed-rules-web-application-firewall/).

 */

export async function main(

  auth: Cloudflare,

  identifier: string,

  package_id: string,

  zone_id: string,

  body: {

    mode?:

      | "default"

      | "disable"

      | "simulate"

      | "block"

      | "challenge"

      | "on"

      | "off";

    [k: string]: unknown;

  }

) {

  const url = new URL(

    `https://api.cloudflare.com/client/v4/zones/${zone_id}/firewall/waf/packages/${package_id}/rules/${identifier}`

  );

  const response = await fetch(url, {

    method: "PATCH",

    headers: {

      "X-AUTH-EMAIL": auth.email,

      "X-AUTH-KEY": auth.key,

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

      Authorization: "Bearer " + auth.token,

    },

    body: JSON.stringify(body),

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}