How to extract request headers for APIGW using CloudWatch Logs?

Question

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.
![Enter image description here](/media/postImages/original/IM7bmcSnLJS6GDGb0NldMhlQ)

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

Answer

In order to see Headers in APIGW logs you need to follow below steps
1) Go to your APIGW ID 
2) Go to stages ===> logs/tracing
3) Enable CloudWatch logs with INFO level logging and you must Enable Log full requests/responses data 
![Execution logs for APIGW ](/media/postImages/original/IMNpn3s5u7R5aAJbXAvWP5jg)
After configuring like above , you will be able to see the headers in APIGW execution logs

Attaching some references:
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[1] --- https://docs.aws.amazon.com/apigateway/latest/developerguide/set-up-logging.html#:~:text=User%20Guide.-,Set%20up%20CloudWatch%20API%20logging%20using%20the%20API%20Gateway%20console,-To%20set%20up

[2] --- https://aws.amazon.com/premiumsupport/knowledge-center/api-gateway-cloudwatch-logs/

How to extract request headers for APIGW using CloudWatch Logs?

Attaching some references:

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