!752

static class Msg {
  S type, user, text, ts;
  O reactions;
}

static S data;
static new L<Msg> msgs; // Note: They're in reverse order!

static S token = "xoxp-11444506721-15584660016-15602755169-10849bef29";
static S channelID = "C0FH9PY8J"; // #talkingbots
static S oldest = "1449245380.000382"; // timestamp of first msg to get

p {
  S url = "https://slack.com/api/channels.history";
  S postData = "token=" + urlencode(token) + "&channel=" + urlencode(channelID) + "&oldest=" + urlencode(oldest);
  data = doPost(postData, url);
  Map map = cast jsonDecode(data);
  assertTrue(map.get("ok"));
  List<Map> _msgs = cast map.get("messages");
  msgs = new ArrayList<Msg>();
  for (Map msg : _msgs) {
    new Msg m;
    m.type = (S) msg.get("type");
    m.user = (S) msg.get("user");
    m.text = (S) msg.get("text");
    m.ts = (S) msg.get("ts");
    m.reactions = msg.get("reactions");
    msgs.add(m);
    print(structure(m));
  }
  print(l(msgs) + " messages sucked from slack channel.");
}

Began life as a copy of #1001867