serverless-express callback request

s3(image) + cloudfront + lambda@edge
I'm only processing image requests from users authenticated with vanilla http.

*** vanilla-http

xxx.cloudfront.net/image.png

const authUtil = require("./middlewares/auth");

exports.handler = (event, context, callback) => {
const { request, response } = event.Records[0].cf;

result = authUtil(request);

if(result.success) {
callback(null, request);
}
};

// This works well. (image download)

serverless-express

router.get('/:file', async (req, res) => {
const { event, context } = getCurrentInvoke()
const eventRequest = event.Records[0].cf.request;

res.json(eventRequest)
});

// not working
***
{"clientIp":"000.000.000.000","headers":{"host":[{"key":"Host","value":"dl78camcjz7wt.cloudfront.net"}],"user-agent":[{"key":"User-Agent","value":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36"}],"
***

I need help to solve this problem.

Start with the Lambda@Edge handler and the Express route shown in the issue, then inspect how getCurrentInvoke() exposes event and context in serverless-express. Compare the working vanilla-http callback path with the route's response handling and reproduce the request using the provided CloudFront event shape. Done means the route reliably returns the expected request data for an image request.

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