# `Slink.Identity`
[🔗](https://github.com/wkirschbaum/slink/blob/v0.6.0/lib/slink/identity.ex#L1)

Caches the bot's own identity (`auth.test`) per token.

This is what fills `Slink.Context`'s `:bot_user_id`: the transports prewarm
the cache (Socket Mode on connect, the Events API plug per request) and stamp
the cached id into the handler context, powering `Slink.mentions_me?/1`.

Reads never block and never touch the network — until the one-off `auth.test`
round-trip completes, `bot_user_id/1` is `nil`. A failed fetch stays uncached,
so the next prewarm simply retries.

# `bot_user_id`

The cached bot user id for `token`, or `nil` if not (yet) known.

# `child_spec`

Returns a specification to start this module under a supervisor.

See `Supervisor`.

# `prewarm`

Fetch and cache the identity for `token` off-process, unless already cached.

Fire-and-forget: the `auth.test` call runs under `Slink.TaskSupervisor`, so a
slow or failing Slack never blocks the caller (a transport). Safe to call on
every event — a cache hit is a single ETS read.

# `start_link`

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