websocket - Socket.io disconnecting and connecting after 25 minutes of client inactivity

Question

I have a NestJS backend and a React frontend and a socket.io connection. After about 25 minutes of client inactivity my server logs show a client connecting and immediately reconnecting with a different id every 60 seconds. All the socket comms works fine but if I stop doing stuff in the front end (working on something else for example) then invariably after 25 minutes I start to see my nest logs populated with

[Nest] 71970   - 01/27/2021, 09:52:26   [SocketGateway] client connected ELnkBCNZNn_lDStJAAEJ
[Nest] 71970   - 01/27/2021, 09:53:22   [SocketGateway] client disconnected ELnkBCNZNn_lDStJAAEJ
[Nest] 71970   - 01/27/2021, 09:53:24   [SocketGateway] client connected A-lXoHnRHh8vNH60AAEK

It feels like a "check the server/client is still there" type thing but I don't think it should be connecting and disconnecting like this

question from:https://stackoverflow.com/questions/65917492/socket-io-disconnecting-and-connecting-after-25-minutes-of-client-inactivity

Answer 1

Waitting for answers