Managed Application Runtime - Node.js Application Example

This is an example Node.js application for Qt Cloud Services - Managed Application Runtime ("MAR").

Getting Started

See the Managed Application Runtime getting started documentation at Qt Cloud Services Developer Documentation

Details About This Example

main.js file

If you take a look at the source code, you'll notice how we are trying to get the port number from environment variables "PORT". This is due to fact that when your application is running in Qt Cloud Services cloud, you can not assign the port number manually. Each MAR instance will get a port number and it is exposed to application via environment variable. There are also other environment variables available, but we don't need to use them in this example application.

package.json file

The important part of the package.json file is defined in scripts.start property. It will define how MAR will handle the application start event. In here, we specify we want to execute node main.js which will start the node application.

Running and Testing Application Locally

You can start this application from the application root directory with following command:

node main.js

Once the server has started, test the server with your web browser at address http://127.0.0.1:8080

Deploying to Cloud

Please see the Qt Cloud Services Developer Documentation