How can I retrieve a user's public IP address via Amazon API Gateway + Lambda (node)

Question

I\'m currently writing a Node.js lambda function, in which I want to log the incoming requester\'s public IP address. I\'ve been looking through both the API Gateway and Lam

Answer 1

In the API Gateway, it's the value

$context.identity.sourceIp

http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html#context-variable-reference

You can pass that through to your Lambda via a mapping template.