Update a Page Rule

type Cloudflare = {

  token: string;

  email: string;

  key: string;

};

/**

 * Update a Page Rule

 * Replaces the configuration of an existing Page Rule. The configuration of the updated Page Rule will exactly match the data passed in the API request.

 */

export async function main(

  auth: Cloudflare,

  identifier: string,

  zone_identifier: string,

  body: {

    actions: {

      modified_on?: string;

      name?: "forward_url";

      value?: {

        type?: "temporary" | "permanent";

        url?: string;

        [k: string]: unknown;

      };

      [k: string]: unknown;

    }[];

    priority?: number;

    status?: "active" | "disabled";

    targets: {

      constraint?: {

        operator:

          | "matches"

          | "contains"

          | "equals"

          | "not_equal"

          | "not_contain";

        value: string;

        [k: string]: unknown;

      } & { value?: string; [k: string]: unknown };

      target?: "url";

      [k: string]: unknown;

    }[];

    [k: string]: unknown;

  }

) {

  const url = new URL(

    `https://api.cloudflare.com/client/v4/zones/${zone_identifier}/pagerules/${identifier}`

  );

  const response = await fetch(url, {

    method: "PUT",

    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();

}