Set up the sample project and add the WDC SDK

1. Open a new terminal window and create a directory for your application:
   mkdir example
cd example
2. Initialize a new npm project:
   npm init
3. Accept all default values.
4. Install the SDK for the Node.js package and save the dependency in package.json:
   npm install watson-developer-cloud –S
5. Install the dotenv package and save this dependency in the package.json.
   Use dotenv to store the Watson Conversation service username and password in the environment:
   npm install dotenv –S
6. Verify that both packages are listed as dependencies by running the cat command:
   cat package.json
7. Open this project in your favorite code editor, such as VS Code:
   code .
   You should see the node_modules and package.json.
8. In your editor, create a .env file and add the following lines:
   USERNAME=<:your_value>
PASSWORD=<your_value>
WORKSPACE_ID=<your_value>
   • Get the USERNAME and PASSWORD from your Watson Conversation instance Service Credentials page in Bluemix.
   • Get your WORKSPACE_ID from your Watson Conversation instance in the Manage tab in Bluemix (Launch Tool > menu > View Details).