Hello,
I am building a web application to manage print jobs. In the past I have
worked with Java based back-ends with the following architecture.
1. A standalone Java application running as a daemon which reads/writes
from/to a DB, and sends out messages to tomcat (any subscribed clients)
containing printer/job state changes.
2. A tomcat server for request/response with Comet for push and
I am researching to see if I can replace the Java back-end pieces with Node
js. The main reason is to use WebSockets or a lib like socket.io within the
web app for real time updates. It was a lot of work to do push from
tomcat/cometd. Other reasons include being able to learn/write Javascript
code within the entire app, faster development once I get past the learning
curve.
Can someone comment if I am heading in the right direction with the
following?
Node js
<------------------> MongoDB
TCP server
^
|
UI in Browser | RPC
^ |
| |
| |
-------------------------------> Node js
HTTP server
+
Socket.IO
UI Talks to Node JS HTTP Server using a request/response style. Updates
will be pushed to UI using socket.io.
The Node JS TCP Server will communicate with a DB. It will also do other
tasks - monitor directories to look for new files.
Anytime the Node JS HTTP Server gets a request, it will use RPC to talk to
Node JS TCP Server. Socket.IO maybe used in the TCP Server to push updates
to Node JS HTTP
Does it make sense to have a seperate TCP Server or should I do all the
above in the HTTP Server?
Thanks,
KK
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