Next, we’ll install the AWS CDK Toolkit. The toolkit is a command-line utility which allows you to work with CDK apps.

Open a terminal session and run the following command:

• Windows: you’ll need to run this as an Administrator
• POSIX: on some systems you may need to run this with sudo

npm install -g aws-cdk

You can check the toolkit version:

$ cdk --version
2.0.0 (build 4b6ce31)