List Files

import { WebClient } from "@slack/web-api"

/**

 * List Files

 * List files visible to the token, newest first, optionally filtered by `channel`, uploader `user`, `types` (comma-separated: all, spaces, snippets, images, gdocs, zips, pdfs) and a Unix-seconds `ts_from`/`ts_to` window. Pages with `count` (default 100) + `page`, bounded by `paging.pages`. Needs files:read (user-token default; tick it for a bot token).

 */

export async function main(

  auth: RT.Slack,

  channel?: string,

  user?: string,

  types?: string,

  ts_from?: number,

  ts_to?: number,

  count?: number,

  page?: number

) {

  const client = new WebClient(auth.token)

  return await client.files.list(

    dropEmpty({ channel, user, types, ts_from, ts_to, count, page }) as any

  )

}

function dropEmpty<T extends { [key: string]: any }>(params: T) {

  return Object.fromEntries(

    Object.entries(params).filter(

      ([, v]) => v != null && v !== "" && !(Array.isArray(v) && v.length === 0)

    )

  ) as T

}