I'm working on a macro to allow the following:
(routes
("/foo" foo-handler #:method put)
("/bar" bar-handler #:methods (put update))
("/baz" baz-handler))
The idea is that you could restrict a route based on the HTTP method either
for one method using #:method or for a list of methods using #:methods. I
tried using some ideas from the following examples:
https://docs.racket-lang.org/syntax/Optional_Keyword_Arguments.html
https://docs.racket-lang.org/syntax/More_Keyword_Arguments.html
The attempt below does not work, and from my debugging I think it's
probably the wrong approach. If there are examples of this sort of thing,
I'd love to see them.
Thanks,
Brian Adkins
(define-syntax (routes stx)
(syntax-parse stx
[ (routes (route:string
handler:id
(~alt (~optional (~or* (~seq #:methods (methods:expr ...))
(~seq #:method method:expr))
#:name "#:method, or #:methods option")
(~optional (~seq #:when guard:expr)
#:name "#:when option"))
...)
...)
(with-syntax ([ name (format-id stx "axio-routes") ])
#'(define name (list (list route handler 'method (list 'methods
...)) ...)))]))
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