GramJS

channels.TogglePreHistoryHidden

Hide/unhide message history for new channel/supergroup users

Example

const { Api, TelegramClient } = require("telegram");
const { StringSession } = require("telegram/sessions");

const session = new StringSession(""); // You should put your string session here
const client = new TelegramClient(session, apiId, apiHash, {});

(async function run() {
  await client.connect(); // This assumes you have already authenticated with .start()

  const result = await client.invoke(
    new Api.channels.TogglePreHistoryHidden({
      channel: "username",
      enabled: false,
    })
  );
  console.log(result); // prints the result
})();
import { Api, TelegramClient } from "telegram";
import { StringSession } from "telegram/sessions";

const session = new StringSession(""); // You should put your string session here
const client = new TelegramClient(session, apiId, apiHash, {});

(async function run() {
  await client.connect(); // This assumes you have already authenticated with .start()

  const result: Api.Updates = await client.invoke(
    new Api.channels.TogglePreHistoryHidden({
      channel: "username",
      enabled: false,
    })
  );
  console.log(result); // prints the result
})();

Parameters

NameTypeDescription
channelInputChannelChannel/supergroup
enabledBoolHide/unhide

Result

Updates

Possible errors

CodeTypeDescription
400CHANNEL_INVALIDThe provided channel is invalid
400CHANNEL_PRIVATEYou haven't joined this channel/supergroup
400CHAT_ADMIN_REQUIREDYou must be an admin in this chat to do this
400CHAT_ID_INVALIDThe provided chat id is invalid
400CHAT_LINK_EXISTSThe chat is public, you can't hide the history to new users
400CHAT_NOT_MODIFIEDThe pinned message wasn't modified

Can bots use this method?

No