Hi Brian, This looks similar to what "dispatch" does?
https://docs.racket-lang.org/web-server/dispatch.html I've never extended the bi-directional patterns that are available, but there is an extension mechanism built in, so that your #:when notions might be part of an extended/new url component matcher? Cheers, M On Mon, Apr 4, 2016 at 2:08 PM, Brian Adkins <lojicdot...@gmail.com> wrote: > I've been looking into an appropriate syntax for routing web requests. For > each route, I'll need the following information: > > * URL Pattern (required) e.g. > "/" > "/:org_shortname/product_image/:style/:filename" > "/:org_shortname/products/(*id).json" > > * Function to handle request (required) > > * Accepted HTTP verbs (optional, defaults ot all) > > * Name (optional) - used to do "reverse routing" i.e. produce a URL from > parameters > > * Contraints (optional) - further refine the pattern matching e.g. > type/format of params > > Here's an example from Rails: > > Foo::Application.routes.draw do > match "/:org_shortname/product_image/:style/:filename" => > 'product_images#product_image', > :as => :product_image, :via => :get, :constraints => { :filename => > /.jpg$/ } > > # URL pattern: "/:org_shortname/product_image/:style/:filename" > # Function: ProductImagesController.product_image > # Name: :product_image > # Verbs: GET > # Contraints: filename param must end in .jpg > > match '/products/(*id).json' => 'products#show', :via => :get > > # URL pattern: '/products/(*id).json' > # (*id) globs everything between /products/ and .json including / > chars > # Function: ProductsController.show > # Verbs: GET > end > > There are many other aspects (much of which is just syntax sugar) of > routing in Rails that I'm ignoring initially. > > I'm thinking of something like the following: > > (routes > ("/" home-page) > ("/:org_shortname/product_image/:style/:filename" product-image #:verbs > (get) > #:name prod-image #:when (regexp-match #rx".jpg$" filename)) > ("/products/(*id).json" product-show #:verbs (get))) > > The first two arguments (url-pattern function) are required, so they're > positional. The optional arguments are specified with keywords. > > Instead of: #:verbs (get) would it be better to have #:verbs get and > dynamically check for an atom vs. list ? > > My initial goal is just for the "base" syntax. Sugar can be added later > for some cases. > > Any feedback is appreciated. > > Thanks, > Brian > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
