Firestore is a fully managed NoSQL database from Firebase that simplifies real-time updates in web applications, allowing for easy scaling with minimal maintenance.
While WebSockets offer bidirectional communication, they demand extensive infrastructure management, which can be both challenging and costly as applications scale.
Polling might be simpler to implement, but it lacks true real-time capabilities and struggles with efficiency as the number of clients increases.
Using Firestore as a 'relay' for updates from a primary MySQL database exemplifies a practical approach to delivering real-time features with minimal overhead.
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