Node application is lightweight and is easy to use as sample application for this DevOps module. Please read on to learn about the basic (Terminal) command to build, test and run a Node application.
The npm install
is the first command you will use to install all dependencies specified in the package.json
file here.
The npm run test
is the command to run the test script specified in the package.json
file. This command in turns run the jest
command.
Sample Snippet from package.json:
"scripts": {
"start": "node index.js",
"test": "jest" // the test script
}
The npm run start
command will start the application. By default, it will use the PORT
number specified in the .env
file here. Upon successful start, you will see the logging message:
Listening to port <port number>