Function subscribeToActivity

subscribeToActivity<TPayload = any>(
handlers: SSESubscribeHandlers<Activity<TPayload>, ActivityStartInfo>,
options?: SubscribeToActivityOptions,
): SSESubscription
Subscribe to the unified activity feed for the authenticated requester.

Opens a single SSE connection to the relay's /v1/activity endpoint. The relay scopes events to requestOrg if present, otherwise requestUser.
Type Parameters
- TPayload = any
Parameters
- handlers: SSESubscribeHandlers<Activity<TPayload>, ActivityStartInfo>
- options: SubscribeToActivityOptions = {}
Returns SSESubscription
Example: Catch up + stay current
```
import { subscribeToActivity } from '@mosaia/mosaia-node-sdk';

const lastSeenId = localStorage.getItem('activity:lastId') ?? undefined;

const sub = subscribeToActivity({
  onStart: (info) => console.log('connected', info.collections),
  onUpdate: (activity) => {
    localStorage.setItem('activity:lastId', activity.id);
    reduceActivity(activity);
  },
  onError: (err) => console.error(err),
}, { since: lastSeenId });

// Later
sub.close();
```
- Defined in utils/activity-feed.ts:110