In node.js how to restart the server while handling some exception in uncaughtException

Question

In my application im using uncaughtException to handle the application error.In this how can i restart the server.

Answer 1

Use the forever module.

npm install forever

forever will restart your server any time it quits, for any reason.

This means you can do a process.exit(); in your code any time you want the server to restart.

You'll need a start and stop script to engage forever.

A typical start script would look like this.

#!/bin/sh
./node_modules/forever/bin/forever \
 start \
 -al log.forever \
 -ao log.traffic \
 -ae log.errors \
app.js

A typical stop script would look like this:

#!/bin/sh
./node_modules/forever/bin/forever stop app.js

In your exception handling code would look something like this:

process.on('uncaughtException', function (err) {
    console.log(err.stack);
    process.exit();
});