Method onFrame

packages/server-e2e/src/ws.ts:113–118

Register a frame subscriber. Returns an unsubscribe handle.

(handler: (f: AnyFrame) => void)

  /** Register a frame subscriber. Returns an unsubscribe handle. */
  onFrame(handler: (f: AnyFrame) => void): () => void {
    this._subscribers.add(handler);
    return () => {
      this._subscribers.delete(handler);
    };
  }

  /**
   * Wait for the next frame matching `predicate`. Drains queued frames first;