Add Or Remove Members Tags

//native

/**

 * @param members_to_add *(optional)* An array of emails to be used for a static segment.

 * Any emails provided that are not present on the list will be ignored.

 * A maximum of 500 members can be sent.

 *

 * @param members_to_remove *(optional)* An array of emails to be used for a static segment.

 * Any emails provided that are not present on the list will be ignored.

 * A maximum of 500 members can be sent.

 */

type Mailchimp = {

  api_key: string;

  server: string;

};

export async function main(

  auth: Mailchimp,

  list_id: string,

  segment_id: string,

  members_to_add?: string[],

  members_to_remove?: string[],

) {

  const url = new URL(

    `https://${auth.server}.api.mailchimp.com/3.0/lists/${list_id}/segments/${segment_id}`,

  );

  const body = {

    members_to_add,

    members_to_remove,

  };

  removeObjectEmptyFields(body, true, false);

  if (!Object.keys(body).length) {

    return "No members were declared to be added or removed.";

  }

  const response = await fetch(url, {

    method: "POST",

    headers: {

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

    },

    body: JSON.stringify(body),

  });

  if (!response.ok) {

    throw Error(await response.text());

  }

  return await response.json();

}

function removeObjectEmptyFields(

  object?: Record<string, any>,

  removeEmptyArraysAndObjects = true,

  createNewObject = true,

) {

  if (!object || typeof object !== "object") return {}

  const obj = createNewObject ? { ...object } : object

  const emptyValues = [undefined, null, ""]

  for (const key in obj) {

    const value = obj[key]

    if (emptyValues.includes(value)) {

      delete obj[key]

    } else if (typeof value === "object") {

      if (Object.keys(value).length) {

        obj[key] = removeObjectEmptyFields(value, removeEmptyArraysAndObjects, false)

      }

      if (!Object.keys(value).length && removeEmptyArraysAndObjects) {

        delete obj[key]

      }

    }

  }

  return obj

}