Re: [racket-users] triggering servlet on GET parameters
Apologies - I’ve changed it to public - > https://github.com/spdegabrielle/clash/blob/master/main.rkt On Mon, 14 Jan 2019 at 06:14, Jesse Alama wrote: > Hi Stephen, > > On 13 Jan 2019, at 13:21, Stephen De Gabrielle wrote: > > > On the bright side I have the basic thing working: > > https://github.com/spdegabrielle/clash/blob/master/main.rkt > > I get a 404 here. > > Jesse > -- -- 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.
Re: [racket-users] triggering servlet on GET parameters
Thank you Jay, Matthew, Jesse & David, I'm still looking at the resources your referred me to - they are much appreciated. On the bright side I have the basic thing working: https://github.com/spdegabrielle/clash/blob/master/main.rkt I'm trying to build a very basic wiki using scribble as the wiki text! (to replace https://github.com/racket/racket/wiki) If you have time or are interested I'd appreciate feedback on my code. Kind regards, Stephen On Tue, Jan 8, 2019 at 4:55 AM Jesse Alama wrote: > On 7 Jan 2019, at 0:16, Matthew Butterick wrote: > > > Don't know if it would be an instructive example, but the Pollen > > project server [1], though not intended for production use, is a > > self-contained HTTP server that handles dynamic generation of HTML (it > > even works with Scribble files), which sounds similar to what you're > > trying to do. > > > > Jesse Alama's book Server: Racket [2] is an excellent resource. Among > > many other things, I learned that you can invent arbitrary HTTP > > methods beyond GET and POST, thereby avoiding encoding conventions > > like "?action=edit". Instead, you can just have an HTTP method called > > EDIT. > > In Stephen's case, I think the classical HTTP method PUT is a good > match. PUT is intended to mean, roughly (precise definition at [1]): > here, take this request body; *it* will be the content in response > bodies to GET requests for this URL from now on. > > One of my favorite examples of custom (non-canonical) HTTP methods is > for "cancelling" something (an order, an edit, some item of some group). > >CANCEL https://example.com/order/4567 > > I find this method-URL pair more palatable than something like > >POST https://example.com/cancel/order/4567 > > where the action (cancelling) is part of the URL. > > Alas, not all browsers support such HTTP methods (such requests may get > silently converted into POSTs, despite your wishes), so they tend to be > relevant only in scenarios where you're using programmable HTTP clients > (e.g., command line tools such as cURL or Httpie [2], or libraries such > as Greg Hendershott's http [3]). > > Jesse > > [1] https://tools.ietf.org/html/rfc2616#section-9.6 > > [2] https://httpie.org > > [3] https://pkgs.racket-lang.org/package/http > -- 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.
Re: [racket-users] triggering servlet on GET parameters
On 7 Jan 2019, at 0:16, Matthew Butterick wrote: Don't know if it would be an instructive example, but the Pollen project server [1], though not intended for production use, is a self-contained HTTP server that handles dynamic generation of HTML (it even works with Scribble files), which sounds similar to what you're trying to do. Jesse Alama's book Server: Racket [2] is an excellent resource. Among many other things, I learned that you can invent arbitrary HTTP methods beyond GET and POST, thereby avoiding encoding conventions like "?action=edit". Instead, you can just have an HTTP method called EDIT. In Stephen's case, I think the classical HTTP method PUT is a good match. PUT is intended to mean, roughly (precise definition at [1]): here, take this request body; *it* will be the content in response bodies to GET requests for this URL from now on. One of my favorite examples of custom (non-canonical) HTTP methods is for "cancelling" something (an order, an edit, some item of some group). CANCEL https://example.com/order/4567 I find this method-URL pair more palatable than something like POST https://example.com/cancel/order/4567 where the action (cancelling) is part of the URL. Alas, not all browsers support such HTTP methods (such requests may get silently converted into POSTs, despite your wishes), so they tend to be relevant only in scenarios where you're using programmable HTTP clients (e.g., command line tools such as cURL or Httpie [2], or libraries such as Greg Hendershott's http [3]). Jesse [1] https://tools.ietf.org/html/rfc2616#section-9.6 [2] https://httpie.org [3] https://pkgs.racket-lang.org/package/http -- 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.
Re: [racket-users] triggering servlet on GET parameters
You can use web-server/servlet and you don't need to use web-server/dispatch if you don't want to. Your design seems good to me. On Sun, Jan 6, 2019 at 10:33 AM Stephen De Gabrielle wrote: > > Thank you Jay and David, > > Your suggestions were good, #:servlet-regexp #rx"" lets me capture the > request for a page and server the original file, or the edit servlet: > http://localhost:8000/mouse.html > http://localhost:8000/mouse.html?action=edit > > I've been reading a little more and I think I've made a mistake! I'm using > 'Stateful Servlets'(require web-server/servlet), and I *think* I should be > using (require web-server/dispatch), so I can capture the situation where a > static file is not found. > > Do you think web-server/dispatch is the right approach? > > My design is; > > GET http(s)://server/ > -> serve static file at specified path > GET http(s)://server/?action=edit > -> serve edit page servlet that retrieves scribble source > GET http(s)://server/ > -> serve edit page adding parameters ?action=edit or maybe new > POST http(s)://server/ > -> update scribble source file, generate target html file in > #:server-root-path and redirect to target html file at > http(s)://server/ > > > > On Thu, Jan 3, 2019 at 4:35 PM David Storrs wrote: >> >> Stephen, you might also find this useful as a reference to crib from: >> http://matt.might.net/articles/low-level-web-in-racket/ >> >> On Thu, Jan 3, 2019 at 11:10 AM Jay McCarthy wrote: >>> >>> Use normal racket/base and web-server/servlet-env ‘s serve/servlet >>> >>> On Thu, Jan 3, 2019 at 10:53 AM David Storrs wrote: On Wed, Jan 2, 2019 at 7:12 PM Jay McCarthy wrote: > > You need to stop using `web-server/insta` What would you recommend he use instead of web-server/insta? > > so you can customize more. > Then, you need to intercept ALL requests with your servlet. Then, your > servlet just needs to call (next-dispatcher) and the static file > handler will kick in, because it comes after servlets. > > Jay > > On Wed, Jan 2, 2019 at 7:08 PM Stephen De Gabrielle > wrote: > > > > Hi, > > > > I'm fooling around with #lang web-server/insta, and I can serve .html > > files by setting (static-files-path page-root), but I'd like to trigger > > my servlet if there is a '?action=edit' parameter set. > > > > e.g > > https://localhost/start.html just serves the file (I can do this!) > > https://localhost/start.html?action=edit calls my servlet (I can't > > work out how to do this :( ) > > > > (There is a lot of documentation but I'm a beginner with webdev so > > don't know where to look) > > > > Kind regards > > > > Stephen > > > > PS the project is a scribble based wiki. If you create a new page you > > enter raw scribble/manual in a form (my servlet) and it gets saved in a > > folder and transformed into html that is served directly by > > (static-files-path page-root), the conversion from raw scribble goes > > like this: > > (require raco/all-tools) > > (define raco-scribble-spec (hash-ref (all-tools) "scribble")) > > ;;scribble-to-html : source target body > > ;; generate html file from scribble file > > (define (scribble-to-html source target) ;-> list of strings > > (parameterize ([current-command-line-arguments (vector "--html" > > source)] > > [current-directory target]) > > (dynamic-require (cadr raco-scribble-spec) #f))) > > > > > > -- > > 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. > > > > -- > -=[ Jay McCarthy http://jeapostrophe.github.io]=- > -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- > -=[ Moses 1:33: And worlds without number have I created; ]=- > > -- > 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. >>> >>> -- >>> -=[ Jay McCarthy http://jeapostrophe.github.io]=- >>> -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- >>> -=[ Moses 1:33: And worlds without number have I created; ]=- > > -- > -- -=[ Jay McCarthy http://jeapostrophe.github.io]=- -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- -=[ Moses 1:33: And worlds without number have I created; ]=- -- You received this message because you
Re: [racket-users] triggering servlet on GET parameters
Don't know if it would be an instructive example, but the Pollen project server [1], though not intended for production use, is a self-contained HTTP server that handles dynamic generation of HTML (it even works with Scribble files), which sounds similar to what you're trying to do. Jesse Alama's book Server: Racket [2] is an excellent resource. Among many other things, I learned that you can invent arbitrary HTTP methods beyond GET and POST, thereby avoiding encoding conventions like "?action=edit". Instead, you can just have an HTTP method called EDIT. It's possible to use the Racket web server "behind" Apache, so that Apache handles the static file serving, and Racket handles computation. [3] [1] https://github.com/mbutterick/pollen/blob/master/pollen/private/project-server.rkt [2] https://serverracket.com/ [3] http://docs.racket-lang.org/web-server-internal/Troubleshooting_and_Tips.html?q=apache#%28part._.How_do_.I_use_.Apache_with_the_.Racket_.Web_.Server_%29 > On Jan 6, 2019, at 7:33 AM, Stephen De Gabrielle > wrote: > > Do you think web-server/dispatch is the right approach? > > My design is; > > GET http(s)://server/ > -> serve static file at specified path > GET http(s)://server/?action=edit > -> serve edit page servlet that retrieves scribble source > GET http(s)://server/ > -> serve edit page adding parameters ?action=edit or maybe new > POST http(s)://server/ > -> update scribble source file, generate target html file in > #:server-root-path and redirect to target html file at > http(s)://server/https://groups.google.com/d/optout.
Re: [racket-users] triggering servlet on GET parameters
Thank you Jay and David, Your suggestions were good, #:servlet-regexp #rx"" lets me capture the request for a page and server the original file, or the edit servlet: http://localhost:8000/mouse.html http://localhost:8000/mouse.html?action=edit I've been reading a little more and I think I've made a mistake! I'm using 'Stateful Servlets'(require web-server/servlet), and I *think* I should be using (require web-server/dispatch), so I can capture the situation where a static file is not found. Do you think web-server/dispatch is the right approach? My design is; GET http(s)://server/ -> serve static file at specified path GET http(s)://server/?action=edit -> serve edit page servlet that retrieves scribble source GET http(s)://server/ -> serve edit page adding parameters ?action=edit or maybe new POST http(s)://server/ -> update scribble source file, generate target html file in #:server-root-path and redirect to target html file at http(s)://server/ On Thu, Jan 3, 2019 at 4:35 PM David Storrs wrote: > Stephen, you might also find this useful as a reference to crib from: > http://matt.might.net/articles/low-level-web-in-racket/ > > On Thu, Jan 3, 2019 at 11:10 AM Jay McCarthy > wrote: > >> Use normal racket/base and web-server/servlet-env ‘s serve/servlet >> >> On Thu, Jan 3, 2019 at 10:53 AM David Storrs >> wrote: >> >>> >>> >>> On Wed, Jan 2, 2019 at 7:12 PM Jay McCarthy >>> wrote: >>> You need to stop using `web-server/insta` >>> >>> >>> What would you recommend he use instead of web-server/insta? >>> >>> so you can customize more. Then, you need to intercept ALL requests with your servlet. Then, your servlet just needs to call (next-dispatcher) and the static file handler will kick in, because it comes after servlets. Jay On Wed, Jan 2, 2019 at 7:08 PM Stephen De Gabrielle wrote: > > Hi, > > I'm fooling around with #lang web-server/insta, and I can serve .html files by setting (static-files-path page-root), but I'd like to trigger my servlet if there is a '?action=edit' parameter set. > > e.g > https://localhost/start.html just serves the file (I can do this!) > https://localhost/start.html?action=edit calls my servlet (I can't work out how to do this :( ) > > (There is a lot of documentation but I'm a beginner with webdev so don't know where to look) > > Kind regards > > Stephen > > PS the project is a scribble based wiki. If you create a new page you enter raw scribble/manual in a form (my servlet) and it gets saved in a folder and transformed into html that is served directly by (static-files-path page-root), the conversion from raw scribble goes like this: > (require raco/all-tools) > (define raco-scribble-spec (hash-ref (all-tools) "scribble")) > ;;scribble-to-html : source target body > ;; generate html file from scribble file > (define (scribble-to-html source target) ;-> list of strings > (parameterize ([current-command-line-arguments (vector "--html" source)] > [current-directory target]) > (dynamic-require (cadr raco-scribble-spec) #f))) > > > -- > 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. -- -=[ Jay McCarthy http://jeapostrophe.github.io]=- -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- -=[ Moses 1:33: And worlds without number have I created; ]=- -- 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. >>> -- >> -=[ Jay McCarthy http://jeapostrophe.github.io]=- >> -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- >> -=[ Moses 1:33: And worlds without number have I created; ]=- >> > -- -- 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.
Re: [racket-users] triggering servlet on GET parameters
Hi Stephen, On 3 Jan 2019, at 1:07, Stephen De Gabrielle wrote: I'm fooling around with #lang web-server/insta, and I can serve .html files by setting (static-files-path page-root), but I'd like to trigger my servlet if there is a '?action=edit' parameter set. e.g https://localhost/start.html just serves the file (I can do this!) https://localhost/start.html?action=edit calls my servlet (I can't work out how to do this :( ) (There is a lot of documentation but I'm a beginner with webdev so don't know where to look) This doesn't work (in the sense that it is deliberately incomplete or broken), but just to elaborate on what Jay is suggesting, here's how I might get started on this kind of project: #lang racket (require net/url web-server/http web-server/servlet-env) (define/contract (url->action url) (url? . -> . (or/c false/c string?)) (define (action? x) (eq? 'action (car x))) (define result (assoc 'action (url-query url))) (cond [(pair? result) (bytes->string/utf-8 (cdr result))] [else #f])) ; build a path for interpreting the URL ; as pointing to something on the disk (define/contract (url->path url) (url? . -> . path?) (apply build-path (map path/param-path (url-path url (define/contract (edit-file p) (path? . -> . response?) (define ip (open-input-file p)) (define response-body `(html (head (title "Edit")) (body (form ((action "/save-file") (method "post")) (textarea ,(path->string ip)) (response/xexpr response-body)) (define/contract (save-file req) (request? . -> . response?) ;; process the changed file and generate a response 1 ) (define (start req) (define url (request-uri req)) (define path (url->path url)) (define action (url->action url)) (cond [(string? action) (edit-file path)] [else ((url->path url)) ])) (serve/servlet start #:servlet-path "" #:servlet-regexp #rx"") -- 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.
Re: [racket-users] triggering servlet on GET parameters
Stephen, you might also find this useful as a reference to crib from: http://matt.might.net/articles/low-level-web-in-racket/ On Thu, Jan 3, 2019 at 11:10 AM Jay McCarthy wrote: > Use normal racket/base and web-server/servlet-env ‘s serve/servlet > > On Thu, Jan 3, 2019 at 10:53 AM David Storrs > wrote: > >> >> >> On Wed, Jan 2, 2019 at 7:12 PM Jay McCarthy >> wrote: >> >>> You need to stop using `web-server/insta` >> >> >> What would you recommend he use instead of web-server/insta? >> >> >>> so you can customize more. >>> Then, you need to intercept ALL requests with your servlet. Then, your >>> servlet just needs to call (next-dispatcher) and the static file >>> handler will kick in, because it comes after servlets. >>> >>> Jay >>> >>> On Wed, Jan 2, 2019 at 7:08 PM Stephen De Gabrielle >>> wrote: >>> > >>> > Hi, >>> > >>> > I'm fooling around with #lang web-server/insta, and I can serve .html >>> files by setting (static-files-path page-root), but I'd like to trigger my >>> servlet if there is a '?action=edit' parameter set. >>> > >>> > e.g >>> > https://localhost/start.html just serves the file (I can do this!) >>> > https://localhost/start.html?action=edit calls my servlet (I can't >>> work out how to do this :( ) >>> > >>> > (There is a lot of documentation but I'm a beginner with webdev so >>> don't know where to look) >>> > >>> > Kind regards >>> > >>> > Stephen >>> > >>> > PS the project is a scribble based wiki. If you create a new page you >>> enter raw scribble/manual in a form (my servlet) and it gets saved in a >>> folder and transformed into html that is served directly by >>> (static-files-path page-root), the conversion from raw scribble goes like >>> this: >>> > (require raco/all-tools) >>> > (define raco-scribble-spec (hash-ref (all-tools) "scribble")) >>> > ;;scribble-to-html : source target body >>> > ;; generate html file from scribble file >>> > (define (scribble-to-html source target) ;-> list of strings >>> > (parameterize ([current-command-line-arguments (vector "--html" >>> source)] >>> > [current-directory target]) >>> > (dynamic-require (cadr raco-scribble-spec) #f))) >>> > >>> > >>> > -- >>> > 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. >>> >>> >>> >>> -- >>> -=[ Jay McCarthy http://jeapostrophe.github.io]=- >>> -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- >>> -=[ Moses 1:33: And worlds without number have I created; ]=- >>> >>> -- >>> 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. >>> >> -- > -=[ Jay McCarthy http://jeapostrophe.github.io]=- > -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- > -=[ Moses 1:33: And worlds without number have I created; ]=- > -- 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.
Re: [racket-users] triggering servlet on GET parameters
Use normal racket/base and web-server/servlet-env ‘s serve/servlet On Thu, Jan 3, 2019 at 10:53 AM David Storrs wrote: > > > On Wed, Jan 2, 2019 at 7:12 PM Jay McCarthy > wrote: > >> You need to stop using `web-server/insta` > > > What would you recommend he use instead of web-server/insta? > > >> so you can customize more. >> Then, you need to intercept ALL requests with your servlet. Then, your >> servlet just needs to call (next-dispatcher) and the static file >> handler will kick in, because it comes after servlets. >> >> Jay >> >> On Wed, Jan 2, 2019 at 7:08 PM Stephen De Gabrielle >> wrote: >> > >> > Hi, >> > >> > I'm fooling around with #lang web-server/insta, and I can serve .html >> files by setting (static-files-path page-root), but I'd like to trigger my >> servlet if there is a '?action=edit' parameter set. >> > >> > e.g >> > https://localhost/start.html just serves the file (I can do this!) >> > https://localhost/start.html?action=edit calls my servlet (I can't >> work out how to do this :( ) >> > >> > (There is a lot of documentation but I'm a beginner with webdev so >> don't know where to look) >> > >> > Kind regards >> > >> > Stephen >> > >> > PS the project is a scribble based wiki. If you create a new page you >> enter raw scribble/manual in a form (my servlet) and it gets saved in a >> folder and transformed into html that is served directly by >> (static-files-path page-root), the conversion from raw scribble goes like >> this: >> > (require raco/all-tools) >> > (define raco-scribble-spec (hash-ref (all-tools) "scribble")) >> > ;;scribble-to-html : source target body >> > ;; generate html file from scribble file >> > (define (scribble-to-html source target) ;-> list of strings >> > (parameterize ([current-command-line-arguments (vector "--html" >> source)] >> > [current-directory target]) >> > (dynamic-require (cadr raco-scribble-spec) #f))) >> > >> > >> > -- >> > 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. >> >> >> >> -- >> -=[ Jay McCarthy http://jeapostrophe.github.io]=- >> -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- >> -=[ Moses 1:33: And worlds without number have I created; ]=- >> >> -- >> 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. >> > -- -=[ Jay McCarthy http://jeapostrophe.github.io]=- -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- -=[ Moses 1:33: And worlds without number have I created; ]=- -- 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.
Re: [racket-users] triggering servlet on GET parameters
On Wed, Jan 2, 2019 at 7:12 PM Jay McCarthy wrote: > You need to stop using `web-server/insta` What would you recommend he use instead of web-server/insta? > so you can customize more. > Then, you need to intercept ALL requests with your servlet. Then, your > servlet just needs to call (next-dispatcher) and the static file > handler will kick in, because it comes after servlets. > > Jay > > On Wed, Jan 2, 2019 at 7:08 PM Stephen De Gabrielle > wrote: > > > > Hi, > > > > I'm fooling around with #lang web-server/insta, and I can serve .html > files by setting (static-files-path page-root), but I'd like to trigger my > servlet if there is a '?action=edit' parameter set. > > > > e.g > > https://localhost/start.html just serves the file (I can do this!) > > https://localhost/start.html?action=edit calls my servlet (I can't > work out how to do this :( ) > > > > (There is a lot of documentation but I'm a beginner with webdev so don't > know where to look) > > > > Kind regards > > > > Stephen > > > > PS the project is a scribble based wiki. If you create a new page you > enter raw scribble/manual in a form (my servlet) and it gets saved in a > folder and transformed into html that is served directly by > (static-files-path page-root), the conversion from raw scribble goes like > this: > > (require raco/all-tools) > > (define raco-scribble-spec (hash-ref (all-tools) "scribble")) > > ;;scribble-to-html : source target body > > ;; generate html file from scribble file > > (define (scribble-to-html source target) ;-> list of strings > > (parameterize ([current-command-line-arguments (vector "--html" > source)] > > [current-directory target]) > > (dynamic-require (cadr raco-scribble-spec) #f))) > > > > > > -- > > 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. > > > > -- > -=[ Jay McCarthy http://jeapostrophe.github.io]=- > -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- > -=[ Moses 1:33: And worlds without number have I created; ]=- > > -- > 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.
Re: [racket-users] triggering servlet on GET parameters
You need to stop using `web-server/insta` so you can customize more. Then, you need to intercept ALL requests with your servlet. Then, your servlet just needs to call (next-dispatcher) and the static file handler will kick in, because it comes after servlets. Jay On Wed, Jan 2, 2019 at 7:08 PM Stephen De Gabrielle wrote: > > Hi, > > I'm fooling around with #lang web-server/insta, and I can serve .html files > by setting (static-files-path page-root), but I'd like to trigger my servlet > if there is a '?action=edit' parameter set. > > e.g > https://localhost/start.html just serves the file (I can do this!) > https://localhost/start.html?action=edit calls my servlet (I can't work out > how to do this :( ) > > (There is a lot of documentation but I'm a beginner with webdev so don't know > where to look) > > Kind regards > > Stephen > > PS the project is a scribble based wiki. If you create a new page you enter > raw scribble/manual in a form (my servlet) and it gets saved in a folder and > transformed into html that is served directly by (static-files-path > page-root), the conversion from raw scribble goes like this: > (require raco/all-tools) > (define raco-scribble-spec (hash-ref (all-tools) "scribble")) > ;;scribble-to-html : source target body > ;; generate html file from scribble file > (define (scribble-to-html source target) ;-> list of strings > (parameterize ([current-command-line-arguments (vector "--html" source)] > [current-directory target]) > (dynamic-require (cadr raco-scribble-spec) #f))) > > > -- > 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. -- -=[ Jay McCarthy http://jeapostrophe.github.io]=- -=[ Associate ProfessorPLT @ CS @ UMass Lowell ]=- -=[ Moses 1:33: And worlds without number have I created; ]=- -- 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.
[racket-users] triggering servlet on GET parameters
Hi, I'm fooling around with #lang web-server/insta, and I can serve .html files by setting (static-files-path page-root), but I'd like to trigger my servlet if there is a '?action=edit' parameter set. e.g https://localhost/start.html just serves the file (I can do this!) https://localhost/start.html?action=edit calls my servlet (I can't work out how to do this :( ) (There is a lot of documentation but I'm a beginner with webdev so don't know where to look) Kind regards Stephen PS the project is a scribble based wiki. If you create a new page you enter raw scribble/manual in a form (my servlet) and it gets saved in a folder and transformed into html that is served directly by (static-files-path page-root), the conversion from raw scribble goes like this: (require raco/all-tools) (define raco-scribble-spec (hash-ref (all-tools) "scribble")) ;;scribble-to-html : source target body ;; generate html file from scribble file (define (scribble-to-html source target) ;-> list of strings (parameterize ([current-command-line-arguments (vector "--html" source)] [current-directory target]) (dynamic-require (cadr raco-scribble-spec) #f))) -- 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.
