𝗥𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗔𝗣𝗜𝘀 𝘄𝗶𝘁𝗵 𝗪𝗲𝗯𝗦𝗼𝗰𝗸𝗲𝘁𝘀
Real-time APIs move data. WebSockets let clients and servers talk at the same time. They keep a connection open.
Connections start as HTTP. They move to the WebSocket protocol. This works with most firewalls.
Connection management is hard. Users disconnect. Servers restart.
- Use exponential backoff for reconnections.
- Tell your users when the connection drops.
Scaling needs a plan. One server does not see all connections. Use Redis or Kafka to send messages to all server instances.
Check tokens during the first handshake. Use a heartbeat to find dead connections.
Design your message format. Include a type, an ID, and the data. This helps you track requests and responses.
Use fallbacks if WebSockets fail.
- Server-Sent Events work for one-way data.
- Long polling works for old browsers.
- Use Socket.IO to handle this.
Monitor your connections. Track the message rate. Watch for sudden drops. This helps you find bugs.