🔗 WebSockets vs. SSE should be about ordering and correctness

When considering WebSockets and Server-Sent Events (SSE), event ordering and correctness are critical for user experience. For instance, a scenario might arise where user actions like adding or removing tags can lead to chaotic and misleading outcomes if events arrive out of order. The author emphasizes that while many advocate for SSE due to perceived simplicity, the real battle lies in ensuring correct event delivery, which can be better handled by WebSockets. WebSockets allow for bidirectional communication, preventing issues that plague SSE and Fetch interactions, where multiple streams could race against each other. The article concludes by asserting that regardless of the technology choice, the essential question remains: how to ensure events are processed in the correct order to avoid confusing users?