[Catalyst] RESTful perl implementations...
Zbigniew Lukasiak
zzbbyy at gmail.com
Sat Sep 9 10:33:54 CEST 2006
Hi all,
Do you think it would fit into InstantCRUD? I can imagine that if you make
it easily pluggable I could include it into the generator.
--
Zbyszek
On 9/9/06, John Napiorkowski <jjn1056 at yahoo.com> wrote:
>
> I'd like something that would be similar to the Google
> API (Based on Atom) and would also support JSON for
> the feed data. I also think RPC of some sort is
> useful for particular method oriented tasks, certain
> things just don't fit well into the REST paradigm (in
> my opinion, but don't want to start a flame war :) )
>
> I'd be into meeting up on IRC sometime. I'm in the
> East Coast USA timezone (GMT-5). What about the rest
> of you? I can meet up during this coming weekend.
>
> --john
>
> --- "J. Shirley" <jshirley at gmail.com> wrote:
>
> > I'm working on a similar thing, except relying
> > heavier on JSON-RPC for
> > certain things, and a mix of RESTful constructs for
> > the rest.
> >
> > Maybe an IRC meeting where we can get together and
> > compare notes to
> > solidify our efforts?
> >
> > -J
> >
> > On 9/7/06, Garrett Goebel <ggoebel at goebel.ws> wrote:
> > > My apologies. I haven't made the time yet to fix
> > my code to use an
> > > ActionClass. And it doesn't look like I'll have a
> > chance to work on
> > > things again until this weekend at the earliest.
> > >
> > > In the mean time, you might consider checking out
> > the
> > > Jifty::Plugin::REST::Dispatcher in the svn
> > repository (http://
> > > svn.jifty.org/svn/jifty.org) and the slides from
> > the following
> > > presentation:
> > http://pugs.blogs.com/talks/oscon-rhox.pdf.
> > >
> > > cheers,
> > >
> > > Garrett
> > >
> > >
> > > On Sep 7, 2006, at 8:22 AM, John Napiorkowski
> > wrote:
> > >
> > > > I'm not trying to make something as magical as
> > > > InstantCRUD, but I'd like to add some RESTful
> > matching
> > > > and convienence to Catalyst actions. So I'd
> > like to
> > > > be able to match on various HTTP method types
> > and
> > > > preparse XML type bodies by various modules
> > (XML::Atom
> > > > if it's an atom feed, XML::Simple if it's
> > > > application/xml, etc.)
> > > >
> > > > My goal is to make it easy to build web services
> > > > similar to the Google Data API.
> > > >
> > > > As a side project, but related, I'm working up a
> > > > controller to handle different error types, so
> > you can
> > > > just say
> > $c->detach('/errors/method_not_allowed') and
> > > > have it give a meaningful response.
> > > >
> > > > I've attached something I'm working on (which I
> > am
> > > > sure doesn't work yet :) ) to give you the idea
> > of my
> > > > direction. If you think it looks in the same
> > ballpark
> > > > as your goal we should followup.
> > > >
> > > > Seems all the cool REST articles are using
> > Python or
> > > > Ruby, I'd like to give them a reason to use Perl
> > > > instead :)
> > > >
> > > > --john
> > > >
> > > > --- Garrett Goebel <ggoebel at goebel.ws> wrote:
> > > >
> > > >> On Sep 6, 2006, at 3:35 PM, John Napiorkowski
> > wrote:
> > > >>
> > > >>> Garrett,
> > > >>>
> > > >>> Looks like we are working on something
> > similar. I
> > > >>> hadn't noticed your postings about two weeks
> > about
> > > >> (I
> > > >>> was in the middle of moving from Beijing back
> > to
> > > >> the
> > > >>> USA and missed about a week of Catalyst
> > postings)
> > > >> or I
> > > >>> might have saved time asking the same
> > questions
> > > >> you
> > > >>> asked.
> > > >>>
> > > >>> I'm actually doing this as an Action class.
> > Since
> > > >> I
> > > >>> don't find any additional posts I'm not sure
> > your
> > > >>> status. Want to collaborate? I am also very
> > > >>> interested in REST based services and would
> > enjoy
> > > >>> having someone to bounce ideas off of.
> > > >>>
> > > >>>
> > > >>
> > > >> I've just been through something similar.
> > Moving
> > > >> back to the USA from
> > > >> Lima, Peru.
> > > >>
> > > >> I spent the week following that last post
> > dissecting
> > > >> InstantCRUD and
> > > >> rewriting something similar but RESTful for the
> > work
> > > >> I've previously
> > > >> mentioned. I had to present something that
> > kinda
> > > >> sorta worked on the
> > > >> 28th. Which led to many shortcuts being taken.
> > I'm
> > > >> still not happy
> > > >> with where I'm at. But the last week of
> > > >> transitioning back to the
> > > >> states and getting the kids into school is
> > settling
> > > >> down. Reminder to
> > > >> self... I still need to send a foreign key
> > patch for
> > > >>
> > > >> DBIx::Class::Schema::Loader::DBI::SQLite to
> > Brandon.
> > > >>
> > > >> I'd be happy to collaborate. I'm fully aware
> > that
> > > >> I'm unaware of
> > > >> Catalyst best practices. And like you, I'd love
> > to
> > > >> bounce ideas and
> > > >> code around.
> > > >>
> > > >> Perhaps you could start by describing your
> > goals and
> > > >> your approach in
> > > >> more detail. I still need to convert my hacked
> > > >> Catalyst::Action into
> > > >> an class derived from ActionClass. If I get
> > some
> > > >> time tomorrow, I'll
> > > >> work that up and post some code.
> > > >>
> > > >> cheers,
> > > >>
> > > >> Garrett
> > > >>
> > > >>
> > > >>> --- Garrett Goebel <ggoebel at goebel.ws> wrote:
> > > >>>
> > > >>>> On Aug 22, 2006, at 3:49 AM, Matt S Trout
> > wrote:
> > > >>>>>> Garrett Goebel wrote:
> > > >>>>>>
> > > >>>>>> I hacked something into the Path and Regex
> > > >>>> dispatchers to get
> > > >>>> collective
> > > >>>>>> matching on method and path working in the
> > > >>>> prototype.
> > > >>>>>
> > > >>>>> You shouldn't need to hack anything into
> > these;
> > > >>>> just use a custom
> > > >>>> ActionClass
> > > >>>>> that overrides $action->match to introspect
> > onto
> > > >>>> the request
> > > >>>> method and
> > > >>>>> anything else you need (this is already how
> > > >> :Args
> > > >>>> is handled, see the
> > > >>>>> Catalyst::Action source for the
> > implementation).
> > > >>>>
> > > >>>> Thanks. I'd found the :Args code in
> > > >> Catalyst::Action
> > > >>>> last night and
> > > >>>> managed to shoehorn the request method and
> > path
> > > >>>> parameter matching
> > > >>>> checks into it. How to subclass or override
> > it
> > > >> was
> > > >>>> going to be my
> > > >>>> next question. I'll check out using a custom
> > > >>>> ActionClass.
> > > >>>>
> > > >>>> Last night I also sub-classed the Request
> > class
> > > >> to
> > > >>>> add:
> > > >>>> __PACKAGE__->mk_accessors(qw/path_parameters
> > > >>>> accept_extension/);
> > > >>>>
> > > >>>> And I'm currently subclassing the Dispatcher
> > to
> > > >>>> override
> > > >>>> prepare_action in order to:
> > > >>>> o remove uri path parameters from
> > > >> $c->request->path
> > > >>>> and add to
> > > >>>> $c->request->path_parameters
> > > >>>> o remove "file" extension from last path
> > segment
> > > >>>> and add to
> > > >>>> $c->request->accept_extension
> > > >>>> o filter body parameters from using
> > content_type
> > > >>>> implied by the
> > > >>>> accept_extension (json, yaml, etc) and
> > add to
> > > >>>> $c->request-
> > > >>>>> parameters.
> > > >>>> Perhaps I should consider just using the
> > > >>>> $c->request->content_type?
> > > >>>> o check POST requests for hidden
> > > >> _methodÞLETE|PUT
> > > >>>> parameter and
> > > >>>> update
> > > >>>> $c->request->method accordingly
> > > >>>>
> > > >>>> These are all things I want to do once per
> > > >> request,
> > > >>>> not once per
> > > >>>> action. Certainly there are better places to
> > > >> perform
> > > >>>> some of these
> > > >>>> tasks. And I would like to hear any advice on
> > the
> > > >>>> best place to
> > > >>>> override catalyst for each. In the mean time,
> > at
> > > >>>> least I've got a
> > > >>>> proof of concept working.
> > > >>>>
> > > >>>>
> > > >>>> My controller now is able to look like:
> > > >>>>
> > > >>>> # GET http://foo.com/model
> > > >>>> # GET http://foo.com/model.json
> > > >>>> sub index :GET :Path('') Args(0) {
> > > >>>> my ($self, $c) > > > >>>> my @models > > > >>>> UNIVERSAL::can($c->model($_),
> > > >>>> 'result_source') }
> > > >>>> $c->models;
> > > >>>> $self->out($c, \@models);
> > > >>>> 1;
> > > >>>> }
> > > >>>>
> > > >>>> # GET http://foo.com/model/Person
> > > >>>> sub show :GET :Path('') :Args(1) {
> > > >>>> my ($self, $c, $model) > > > >>>> my @pkcols > > > >>>>
> > > >>
> > $c->model($model)->result_source->primary_columns;
> > > >>>> my @pk_tuples > > > >>>> { my $tuple > > > >>>> $tuple->$_ } @pkcols)) }
> > > >>>> $c->model($model)->search(undef,
> > > >>>> {columns
> > =>
> > > >>>> \@pkcols,
> > > >>>> distinct
> > =>
> > > >> 1,
> > > >>>> order_by
> > =>
> > > >>>> \@pkcols})
> > > >>>> );
> > > >>>> $self->out($c, \@pk_tuples);
> > > >>>> 1;
> > > >>>> }
> > > >>>>
> > > >>>> # GET http://foo.com/model/Person;edit
> > > >>>> sub edit :GET :Path('') :PathParam(edit)
> > :Args(1)
> > > >>>> {...}
> > > >>>>
> > > >>>> # GET http://foo.com/model/Person;add
> > > >>>> sub add :GET :Path('') :PathParam(add)
> > :Args(1)
> > > >>>> {...}
> > > >>>>
> > > >>>>
> > > >>>> # GET http://foo.com/model/Person;column_info
> > > >>>> # GET
> > > >> http://foo.com/model/Person.yaml;column_info
> > > >>>> sub show_column_info :GET :Path('')
> > > >>>> :PathParam(column_info) :Args(1) {
> > > >>>> my ($self, $c, $model) > > > >>>> my $rs > > $c->model($model)->result_source;
> > > >>>> my %column_info > > > >>>> $rs->column_info($_)} $rs->columns;
> > > >>>> $self->out($c, \%column_info);
> > > >>>> 1;
> > > >>>> }
> > > >>>>
> > > >>>> # POST http://foo.com/model/Person;new
> > > >>>> sub create :POST :Path('') :PathParam(new)
> > > >> :Args(1)
> > > >>>> {...}
> > > >>>>
> > > >>>> # PUT http://foo.com/model/Person/32
> > > >>>> sub update :PUT :Path('') :Args(2) {...}
> > > >>>>
> > > >>>> # DELETE http://foo.com/model/Person/32
> > > >>>> sub destroy :DELETE :Path('') :Args(2) {...}
> > > >>>>
> > > >>
> > > >>
> >
> > _______________________________________________
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> >
>
>
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--
Zbigniew Lukasiak
http://brudnopis.blogspot.com/
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