AWS API Gateway: Use Mock Integration to echo response body
I've found this to actually be possible, although a little hacky. First, in the integration request mapping template you store the body in a path parameter.
#set($context.requestOverride.path.body = $input.body)
{
"statusCode": 200,
}
Then in the integration response mapping template you fetch it back and return it.
#set($body = $context.requestOverride.path.body)
{
"statusCode": 200,
"body": $body,
}
This seems to even work well with larger payloads.
You can set up a lambda function for echoing purposing, something like that:
exports.handler = async (event) => {
return event;
};
Unfortunately this is not supported. In the mapping template for "Integration Response", $input
represents the payload received from the integration response (which is empty in the case of a MOCK
integration.