Google Cloud Pub/Sub vs ws: What are the differences?

1. Scalability: Google Cloud Pub/Sub is a fully managed messaging service that can handle high throughput and scale automatically, whereas WebSocket is a communication protocol that can be implemented on any server and may require additional configurations for scalability. 2. Durability: Google Cloud Pub/Sub retains messages for a configurable period, ensuring message durability and reliability, while WebSocket does not inherently provide message persistence, relying on the server-side implementation for message storage. 3. Global Availability: Google Cloud Pub/Sub is a global service with data centers in multiple regions, allowing for low-latency message delivery across the globe, whereas WebSocket's availability and performance depend on the server's location and network infrastructure. 4. Message Order: Google Cloud Pub/Sub guarantees message ordering within the same topic, ensuring that subscribers process messages in the order they were published, while WebSocket does not have built-in mechanisms for maintaining message order between clients. 5. Managed Service: Google Cloud Pub/Sub is a managed service provided by Google Cloud Platform, handling infrastructure maintenance, updates, and scaling, whereas WebSocket requires manual setup and maintenance, including handling connections, message routing, and scalability. 6. Authentication and Access Control: Google Cloud Pub/Sub offers robust authentication and access control mechanisms to secure data transmission and prevent unauthorized access, whereas WebSocket implementations may require additional security measures to achieve similar levels of protection.

In Summary, Google Cloud Pub/Sub and WebSocket differ in terms of scalability, durability, global availability, message order, managed service, and security features.