Unable to .join() a .part()'ed channel

Chat and IRC
1

Using TMI.JS, I am dynamically getting a list of channels for my bot to join from a MySQL database.

A user signs up on my site and can add their channel (all handled with Twitch Auth flows) to a db that my node.js (using tmi.js) app checks every X seconds for channels to join/leave.

If it’s running, and I add a new channel, it works just fine. The new channel gets added right away. But when I part a channel (which also works), if I try and .join() the channel again, I get “No Response From Twitch”.

const opts = {
		identity: {
			username: 'redactedbot',
			password: `oauth:${process.env.REDACTED_TOKEN_NAME}`
		},
		options: {
			debug: true,
		},
		channels: await getJoinedTwitchChannels()
	};

That’s how I get my tmi client set up, it’s been working perfectly.

I’ve got this updating function on an interval:

async function updateBotChannels(){
		let databaseChannels = await getJoinedTwitchChannels();
		let joinedChannels   = vespi.getChannels();

		console.log( 'Channels from DB (wanted): ', databaseChannels ); // ['#a','#c','#d']
		console.log( 'Channels from TMI (joined): ', joinedChannels );  // ['#a','#b','#c']

		let channelsToJoin  = databaseChannels.filter(value => !joinedChannels.includes(value));            // ['#d']
		let channelsToLeave = joinedChannels.filter(value   => !databaseChannels.includes(value)); // ['#b']

		channelsToLeave.forEach(async channel => {client.part(channel.replace('#',''))});
		channelsToJoin.forEach(async channel  => {client.join(channel.replace('#',''))});
	}

It parts the channels just fine:

[22:42] info: Executing command: PART #b
[22:42] info: Left #b
Parted #b
[22:42] info: [#b] <REDACTEDBOT>: See ya later!

And joining works well as well, unless it was parted first. Is there a cooldown time I overlooked in the docs between parting and rejoining? Do I need to .disconnect() and .connect() the client again?

2

Is this an issue with tmi.js, perhaps?

It looks like when I .join(), it works. Then .part(), it works. Then if I .join() again after parting (regardless of how long between joins and parts), it just never gets added to the client.channels array. So it keeps issuing the JOIN #target command.

But, on the target channel, the bot eventually shows up and starts responding to commands - so I assume it’s getting through, just never added to the tmi.js client.channels array for some reason if it parted first.

Is there an (inexpensive?) way to get a list of all the channels a user (bot) is active in?

3

You track it internally in your code, if the library you are using (if any) doesn’t do it for you.

TMI (the service not the lirbary) doesn’t provide a command to call for “where am I”/“what am I connected to”, since in 99% of cases the connection you have to chat is only in one room, the one the user is watching in their browser.

4

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