CODEWITHSUNDEEP
javascriptnode.jsnodemon
Mark Watney
Mark Watney

Reputation: 96

Stop nodemon programmatically after run

I'm working on an API that runs in the background, we have some helper methods that need to be launch as such nodemon --exec babel-node commands/router.js to display all routes for instance.

Note that node commands/router.js cannot work as we need babel

At the moment, the method runs without problem but I need to stop nodemon from running after execution. I understand that nodemon is supposed to keep running after execution but our project is designed as such and I need to use nodemon for execution and then kill it.

How can I kill/stop nodemon after run?

Code

package.json

{
  ...
  scripts: {
    "start": "nodemon --exec babel-node index.js",
    "router": "nodemon --exec babel-node commands/router.js"
  },
  ...
}

router.js

const script = () => {
  // Fetch and display routes
}

script()

Upvotes: 0

Views: 4101

Answers (2)

Mark Watney
Mark Watney

Reputation: 96

We found a solution by removing nodemon and manually ending scripts with process.exit()

Final code

package.json

{
  ...
  scripts: {
    "start": "nodemon --exec babel-node index.js", // <= still called with nodemon
    "router": "babel-node commands/router.js"
  },
  ...
}

router.js

const script = () => {
  // Fetch and display routes

  process.exit()
}

script()

Upvotes: 0

Len Joseph
Len Joseph

Reputation: 1458

EDIT:

From Nodemon documentation, the correct way to handle this use case is to manually kill the process with the gracefulShutdown method, like so:

process.once('SIGUSR2', function () {
  gracefulShutdown(function () {
    process.kill(process.pid, 'SIGUSR2');
  });
});

You can read more here.

Upvotes: 2

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