title: How to install dependencies of lambda functions upon cdk build with AWS CDK
body: <p>When using AWS SAM I used to run <code>build</code> command which would go through all of my Lambda function packages and install their dependencies (run <code>npm install</code> on them).</p>
  
  <p>How can I achieve the same behavior with AWS CDK? It doesn't seem to do it automatically, or am I missing something?</p>