This sample application contains a Node.js app using Express. You can run it locally, or learn how to deploy it to Azure and use Swagger to define the REST API.
Clone the repo, install
git clone https://github.com/Azure-Samples/app-service-api-node-food-trucks.git foodtrucks cd foodtrucks
Install the node packages
Start the node server
Open the browser to http://localhost:1337
Deploy to Azure
Follow the steps at this tutorial Build and deploy a Node.js API app in Azure App Service to deploy it to Azure.