ct link to Event Ingestion">​</a></h2>
<p>We instrumented our backend services to emit key user interaction events to Kafka in real time. These included:</p>
<ul>
<li>Click</li>
<li>Order</li>
<li>Add to Cart</li>
<li>Wishlist</li>
<li>Share</li>
</ul>
<p>Each event carried essential metadata:</p>
<ul>
<li>userId — uniquely identifies the user</li>
<li>productId — the item being interacted with</li>
<li>timestamp — the moment the interaction occurred</li>
</ul>
<p>This decoupled the interaction logg