MadelineProtoDocs/old_docs/API_docs_v20/methods/channels.readHistory.md

title	description	image	redirect_from
channels.readHistory	Mark [channel/supergroup](https://core.telegram.org/api/channel) history as read	https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png	/API_docs/methods/channels_readHistory.html

Method: channels.readHistory

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Mark channel/supergroup history as read

Parameters:

Name	Type	Description	Required
channel	Username, chat ID, Update, Message or InputChannel	Channel/supergroup	Optional
max_id	int	ID of message up to which messages should be marked as read	Yes

Return type: Bool

Can bots use this method: NO

MadelineProto Example (now async for huge speed and parallelism!):

if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$Bool = $MadelineProto->channels->readHistory(['channel' => InputChannel, 'max_id' => int, ]);

Or, if you're into Lua:

Bool = channels.readHistory({channel=InputChannel, max_id=int, })

Errors

Code	Type	Description
400	CHANNEL_INVALID	The provided channel is invalid
400	CHANNEL_PRIVATE	You haven't joined this channel/supergroup
400	MSG_ID_INVALID	Invalid message ID provided
406	AUTH_KEY_DUPLICATED	An auth key with the same ID was already generated
-503	Timeout	Timeout while fetching data