Update GRE Tunnel

type Cloudflare = {

  token: string;

  email: string;

  key: string;

};

/**

 * Update GRE Tunnel

 * Updates a specific GRE tunnel. Use `?validate_only=true` as an optional query parameter to only run validation without persisting changes.

 */

export async function main(

  auth: Cloudflare,

  tunnel_identifier: string,

  account_identifier: string,

  body: {

    cloudflare_gre_endpoint: string;

    customer_gre_endpoint: string;

    description?: string;

    health_check?: {

      direction?: "unidirectional" | "bidirectional";

      enabled?: boolean;

      rate?: "low" | "mid" | "high";

      target?: string;

      type?: "reply" | "request";

      [k: string]: unknown;

    };

    interface_address: string;

    mtu?: number;

    name: string;

    ttl?: number;

    [k: string]: unknown;

  }

) {

  const url = new URL(

    `https://api.cloudflare.com/client/v4/accounts/${account_identifier}/magic/gre_tunnels/${tunnel_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();

}