AWS CLOUDWATCH LOGS_$context.requestOverride.header.*

[Jyotheesh_K]

I have created a Rest APIGW and created a log group in Cloud Watch and configured a logs in log format. 

Now, making a get call to APIGW. In headers I am sending TransactionID. How to capture this header in Logs. Please find below attached screenshot.

   

I am able to capture rest of the logs. Is there any context variable to extract headers in log format?