Update Custom Field item on Card

type Trello = {

  key: string;

  token: string;

};

/**

 * Update Custom Field item on Card

 * Setting, updating, and removing the value for a Custom Field on a card. For more details on updating custom fields check out the Getting Started With Custom Fields

 */

export async function main(

  auth: Trello,

  idCard: string,

  idCustomField: string,

  body:

    | {

        value?: {

          text?: string;

          checked?: boolean;

          date?: string;

          number?: number;

          [k: string]: unknown;

        };

        [k: string]: unknown;

      }

    | { idValue?: string; [k: string]: unknown }

) {

  const url = new URL(

    `https://api.trello.com/1/cards/${idCard}/customField/${idCustomField}/item`

  );

  for (const [k, v] of [

    ["key", auth.key],

    ["token", auth.token],

  ]) {

    if (v !== undefined && v !== "") {

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "PUT",

    headers: {

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

      Authorization: undefined,

    },

    body: JSON.stringify(body),

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.text();

}