Get Thread Replies

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

/**

 * Get Thread Replies

 * Fetch a thread: the parent message first, then its replies, oldest first. `ts` is the parent message's timestamp. A bot token (channels:history) can read threads in public channels the app is in. Threads in private channels, DMs and group DMs need a user token with groups:history, im:history or mpim:history. Paginate with `response_metadata.next_cursor`.

 */

export async function main(

  auth: RT.Slack,

  channel: string,

  ts: string,

  oldest?: string,

  latest?: string,

  inclusive?: boolean,

  limit?: number,

  cursor?: string

) {

  const client = new WebClient(auth.token)

  return await client.conversations.replies(

    dropEmpty({ channel, ts, oldest, latest, inclusive, limit, cursor })

  )

}

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

  return Object.fromEntries(

    Object.entries(params).filter(

      ([, v]) => v !== undefined && v !== null && v !== ""

    )

  ) as T

}