Realtime
posts (8)
- Realtime in the Browser: From Polling to WebTransport7/7
Polling, Streaming, SSE, WebSocket, or WebTransport?
The choice follows from the traffic model: freshness, direction, frequency, ordering and reliability. The simplest correct mechanism usually wins.
- Realtime in the Browser: From Polling to WebTransport6/7
WebTransport: Streams and Datagrams for Realtime over HTTP/3
HTTP/3 and QUIC give a single session many independent streams plus datagrams. Not all data has to arrive reliably and in order.
- Realtime in the Browser: From Polling to WebTransport5/7
WebSockets: A Persistent Bidirectional Communication Channel
After the handshake there are no requests and responses left, only frames. A persistent connection is state, and it reaches the load balancer, the deploy and…
- Realtime in the Browser: From Polling to WebTransport4/7
Server-Sent Events: An Event Protocol over HTTP Streaming
A standard event format and reconnection on top of an HTTP stream. Last-Event-ID gives you resume, but it does not solve event durability in the system.
- Realtime in the Browser: From Polling to WebTransport3/7
HTTP Streaming: One Response, Many Chunks of Data
A response can be produced over time. A transport chunk is not a message, so framing and backpressure become the application's business.
- Realtime in the Browser: From Polling to WebTransport2/7
Long Polling: When the Server Delays the Response
The server does not answer until it has something to send. What appears is a chain of long requests, where the timeout and the cursor are part of the protocol.
- Realtime in the Browser: From Polling to WebTransport1/7
Polling: Building Realtime with Repeated Requests
The delay is a function of the interval, and the cost is there even when nothing changes. In exchange every request is independent and the whole infrastructure…
- series · 7 parts
Realtime in the Browser: From Polling to WebTransport
Realtime is a requirement about the maximum acceptable delay of information, not the name of a protocol. The mechanisms from polling to WebTransport, each born…