Uniswap/uniswapx-parameterization-api ? reverse-engineered prompt

Build me a small API service for UniswapX order parameterization that can ask external quote providers for a live market price when a swap comes in.

I want a simple backend with a working quote endpoint, plus the basic AWS deployment setup so I can deploy it to my own account and test it in dev. It should accept a quote request with the token details, amount, swapper, trade type, request id, and quote id, then return a response that mirrors the request ids and token info and includes the quote amounts and filler address. If a provider does not want to quote, it should be able to return no content cleanly.

Please include a basic hello world style route so I can confirm the stack works, and make sure the tests run too, including the DynamoDB related ones if needed. If you need to check current AWS or CDK docs, feel free to look them up online.