How to get all messages from chat history.

[ainizoda]

I'm trying to get and it always returns 100 messages, no more

[roj1512]

You can do that by iterating through them:

for await (const message of client.iterMessages(yourChat)) {
  // use message
}

This is how you can use the above method to put all of them into an array:

const messages = new Array<Api.Message>();
for await (const message of client.iterMessages(yourChat)) {
  messages.push(message);
} 

[ainizoda]

Thank you, finally it works, but how can I do that for channels (groups)?

[roj1512]

Just pass its ID to iterMessages?

[ainizoda]

Nope, it doesn't work.

[painor]

can you show your code and the error you get?

[privorka]

Don't forget, that it needs the user authorisation, it cannot be called using bot token for the authorisation as telegram history is not accessible for bots.