psolz.blogg.se - Restart job mon app

When this happens, a new process is opened thanks to the above commands. inherit passes lets the corresponding stdio stream directly to/from the parent process stdio: configures pipes established between parent and child.

detached: whether or not the child runs independently of the parent process.cwd: the current working directory of the child process.

Lastly, we provide the following options:.

Since we already removed the first element from the array before, the absolute path to our file is now the only element in our array.

Or, more precisely, it calls /home/brad/.nvm/versions/node/v12.16.3/bin/node index.js.

The command to launch the app is npm start, which then calls node index.js.

For instance, /home/brad/.nvm/versions/node/v12.16.3/bin/node. The first element in this array is always process.execPath which is the absolute path to node.

process.argv returns an array that contains the command line arguments passed to Node.js when the process is launched.

access OS functionalities by running any bash command.`. Resolve the `child_process` module, and `spawn`

To give credit where it's due, here's the Stackoverflow post this code was borrowed from. If you're not a big fan of including new libraries into your project or already have one running and just want to add a new route to take care of rebooting your app, the no-dependency way is likely what you need. Restarting a NodeJS app from within itself without dependencies To use it, repeat the same process as with Forever, replacing forever with pm2 where necessary. It comes with a lot of the same features packed in, including automatic reload to prevent downtime and eliminate the need for a lot of common admin tasks. When process.exit(1) is called from within the node process, forever detects it and immediately attempts to reboot your app. For the sake of brevity, authorization code for our system route has been left out. Next, let's create a route that allows us to restart the server via an API call. It's a CLI app useful for running your app in the background, or. The other two methods for restarting your node server programmatically are using pm2 and using forever Using ForeverĪssuming you already have an express server running, the only extra dependency you need is forever. If it can be done with a library, it can also be done without one (it just needs a little bit more elbow grease) so we'll explore how to restart your Node app from within itself using vanilla Javascript. It's easy to pick up and even easier to adopt external libraries to help out with your project.įor our use case, we're going to use express for our server and a few others along the way. NodeJS is a pretty nifty programming language. Restarting a NodeJS app from within itself without dependencies.