diff --git a/src/gateway/opcodes/PresenceUpdate.ts b/src/gateway/opcodes/PresenceUpdate.ts
new file mode 100644
index 00000000..f31c9161
--- /dev/null
+++ b/src/gateway/opcodes/PresenceUpdate.ts
@@ -0,0 +1,24 @@
+import { WebSocket, Payload } from "@fosscord/gateway";
+import { ActivitySchema, emitEvent, PresenceUpdateEvent, Session, User } from "@fosscord/util";
+import { check } from "./instanceOf";
+
+export async function onPresenceUpdate(this: WebSocket, { d }: Payload) {
+ check.call(this, ActivitySchema, d);
+ const presence = d as ActivitySchema;
+
+ await Session.update(
+ { session_id: this.session_id },
+ { status: presence.status, activities: presence.activities }
+ );
+
+ await emitEvent({
+ event: "PRESENCE_UPDATE",
+ user_id: this.user_id,
+ data: {
+ user: await User.getPublicUser(this.user_id),
+ activities: presence.activities,
+ client_status: {}, // TODO:
+ status: presence.status,
+ },
+ } as PresenceUpdateEvent);
+}
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