> For the complete documentation index, see [llms.txt](https://docs.streamavatars.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.streamavatars.com/lua-scripting-api/api-reference-and-tips/events/on-subscriber.md).

# On Subscriber

```lua
function yourEvent(user, cumulativeCount, tier)
    log('Thanks for subbing ' .. user.displayName .. '! x' .. tier);
end

return function()
    addEvent('subscriber', 'yourEvent');
    keepAlive();
end
```

{% hint style="info" %}
Events are asynchronous coroutines.
{% endhint %}