Testing the application on localhost

To test if the application is running, use the following command line on the project folder, which will open the localhost:

npm start

If all the variables such as AccountId, Private Key, and endpoint URL are configured, you should see a working app on localhost 5000, as shown in the following screenshot:

Deployment on Heroku instance

Once you have a working application, it takes a few more commands via Heroku CLI to deploy the application. Let's take a look at the steps to deploy this application. We will assume that the reader has logged into Heroku via the command line using the Heroku login:

1. Create a Heroku application using heroku create in your root folder--let's say, the EinsteinVision folder.
2. Add the Einstein Vision add-on using the following command. Here, <appname> corresponds to the application name that was created in step 1:

heroku addons:create einstein-vision:test --app <appname>

3. Then push using the following command:

git push heroku...