# `MOQX.TrackActive`
[🔗](https://github.com/dmorn/moqx/blob/main/lib/moqx/messages.ex#L147)

Publisher track lifecycle event emitted when relay-side subscribe activation is observed.

# `t`

```elixir
@type t() :: %MOQX.TrackActive{
  namespace: String.t(),
  track: reference(),
  track_alias: non_neg_integer(),
  track_name: String.t()
}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*