Raw cookie strings (e.g. ['a=1', 'b=2']).
Lower-cased headers.
Best-effort client IP (FC clientIP, then forwarding headers).
The HTTP method (upper-case).
OptionalrawThe raw request body (text for textual content types, bytes otherwise, undefined if none).
The raw query string (without the leading ?).
The absolute request URL.
A canonical HTTP request derived from an Alibaba FC HTTP request.
FC hands the handler a plain request object with the body already read into a
Buffer, so normalisation lifts headers/cookies/ip/body into a plain, agnostic shape the rest of the adapter can use without ever touching an FC-specific API.