Get a project's custom fields

type Asana = {

  token: string;

};

/**

 * Get a project's custom fields

 * Returns a list of all of the custom fields settings on a project, in compact form. Note that, as in all queries to collections which return compact representation, `opt_fields` can be used to include more data than is returned in the compact representation. See the [getting started guide on input/output options](https://developers.asana.com/docs/#input-output-options) for more information.

 */

export async function main(

  auth: Asana,

  project_gid: string,

  opt_pretty: string | undefined,

  opt_fields: string | undefined,

  limit: string | undefined,

  offset: string | undefined

) {

  const url = new URL(

    `https://app.asana.com/api/1.0/projects/${project_gid}/custom_field_settings`

  );

  for (const [k, v] of [

    ["opt_pretty", opt_pretty],

    ["opt_fields", opt_fields],

    ["limit", limit],

    ["offset", offset],

  ]) {

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

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: "Bearer " + auth.token,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}