title: How to retrieve x-api-key from headers in aws lambda function
body: <p>I have a AWS Lambda function that gets called utilizing an api gateway. I set it up where API Key Required on my Method request. How do I get the value of x-api-key in my Lambda function? I tried printing out event and context in my Lambda function but event is empty, and context has basic info about the lambda function.</p>
  
  <p>Do I need to map the variable somehow in Method/Integration for it to be available in my Lambda function?</p>