client.on("hosting") is showing 0 viewers instead of actual viewers

[JaielZeus]

Actual behaviour: Upon receiving the event that the channel is hosting someone, like when joining the chat or the host starts hosting. The viewer parameter is filled with a 0

Expected behaviour: It shouldn't be 0 viewers. Channel is quite big with 6k, 7k viewers normally. Even when offline there are at least 100, 200 viewers connected to chat.

Logs:

Code

client.on('hosting', onHostingHandler);
...
//handler for when channel is hosting
function onHostingHandler(channel, target, viewers) {
  logMessage(`*** ${getCleanChannel(channel)} is now hosting ${getCleanChannel(target)} with ${viewers} viewers ***`, true);
}

Chat Log

<2019-1-31 22:23:06> *** ROSHTEIN is now hosting HDTABOO with 0 viewers ***

Server configuration

• Operating system: Linux/Ubuntu on Glitch
• Node version (if applicable): 8.x
• NPM version (if applicable): NPM of Glitch should be uptodate
• tmi.js version: 1.3.0

[xHeaven]

(Most likely) same issue with the resub event.

Code:

client.on("resub", (channel, username, months, message, userstate, methods) => {
try {
    client.say(opts.channels[0], `Name: ${username}, Months: ${months}`)
} catch (e) { console.log("clientonresub: {0}", e); }
});

Output:

Name: <the actual name of the subscriber>, Months: 0

Server configuration

• Operating system: Win 10
• Node version (if applicable): 10.15.0
• NPM version (if applicable): 6.4.1
• tmi.js version: 1.3.0

[AlcaDesign]

It's not the same issue as resub (see https://github.com/tmijs/tmi.js/issues/325#issuecomment-460590935).

As far as I can tell, the library is working as intended. You should only get a viewer count when the hosting begins. If the channel is already hosting and then you join, you will probably see "0" viewers.

https://glitch.com/edit/#!/oasis-mule (Go to "Tool" in the bottom left and choose "Logs")

const tmi = require('tmi.js');

const client = new tmi.Client({ options: { debug: true } });

client.on('unhost', (...args) => console.log('unhost', args));
client.on('hosting', (...args) => console.log('hosting', args));

const hostChannel = 'a';
const targetChannel = 'b';
const parseMsg = require('tmi.js/lib/parser').msg;
client.handleMessage(parseMsg(`:tmi.twitch.tv HOSTTARGET #${hostChannel} :-`));
client.handleMessage(parseMsg(`:tmi.twitch.tv HOSTTARGET #${hostChannel} :${targetChannel} -`));
client.handleMessage(parseMsg(`:tmi.twitch.tv HOSTTARGET #${hostChannel} :${targetChannel} 18`));

[00:41] info: [#a] Exited host mode.
unhost [ '#a', 0 ]

[00:41] info: [#a] Now hosting b for 0 viewer(s).
hosting [ '#a', 'b', 0 ]

[00:41] info: [#a] Now hosting b for 18 viewer(s).
hosting [ '#a', 'b', 18 ]

If you think Twitch is sending bad data, then reopen and I'll ask around.

You can collect raw messages with this:

const tmi = require('tmi.js');
const client = new tmi.client({ /*...*/ });
client.connect();
client.ws.on('message', str => console.log(str));