Tag: real-time

Your SSE Connections Are Lying to You — Here's What Happens When Users Reconnect

Most Server-Sent Events implementations have a silent reliability hole. The event replay pattern guarantees reconnecting clients never miss a billing update, payment approval, or session state change.

Our Mentoring Platform Was Bleeding $17 Per Overrun Session. Then I Built a Timer That Kills Zoom Calls.

How I built an in-memory billing engine that broadcasts millisecond-accurate charges via Server-Sent Events, escalates balance warnings, and automatically terminates Zoom meetings when credits run out.