- dancer-users - lists.preshweb.co.uk

Best way to log from wherever?
by Aaron Hall 08 Jan '21

08 Jan '21

Hi all, Happy New Year. :) What is the current thinking on the "best" or "right" way to log from all parts of your program? I wrestle with this occasionally. I'm not a programmer by trade (these are mainly personal/hobby projects, although I have done stuff for $WORK before), so it seems to me that maybe there's some best practice that I just haven't picked up on. I want to be able to log from any part of my program, have all the logs go through the same processing, and come out in the same place, with a minimum of fuss. Preferably using the same simple debug/info/warning/error APIs (from the logging client's point of view). For the web-facing portions of the app, that's simple enough: "use Dancer2 appname => ..." and be happy. By "any part of my program", I'm thinking of code that doesn't use Dancer2 and so doesn't get the DSL. * Methods in DBIx::Class::Result classes. (Mainly for debugging.) * app.psgi, where I might add a middleware that wants to log something. * Utility modules that don't handle routes and don't use Dancer2. (Maybe they should anyway?) These days, I usually make a "MyApp::Log" module and do something like: package MyApp::Log; use Dancer2 appname => 'MyApp::App'; use Exporter qw/import/; our @EXPORT = qw/debug info warning error/; That actually works pretty nicely; should I just do that? It feels like if that's supposed to be the way, it wouldn't require playing tricks with import(). Once I went so far as to write a Dancer2::Logger::App (never uploaded anywhere) that would call my app back to log, and consolidating the output stream that way. That was kinda fun, but after I did it I felt like I'd re-invented the wheel inside-out. I know there's a giant ecosystem of logging modules on CPAN. I've even played with Log::Any. I suspect the solution involves using one of them, but talking about the data flows gets so abstract I have trouble getting my head around how to use them to make the various sources send logs to the same place, where to configure it all from, and so on. Can someone help straighten me out on this? :) - Aaron -- Aaron Hall Sleep, where is thy sting? vitaphone.net Bed, where is thy victory?

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Dancer2: Create a configuration for testing
by Mikko Johannes Koivunalho 07 Jan '21

07 Jan '21

Hi. I have a Dancer2 app. I want to test it properly against a database. For every test run I create a new database and a new empty schema (PostgreSQL). My new database has a random name (e.g. app_123abc) and at the end of the test I drop the database. How can I change the Dancer2 app configuration during the test run, or before I do my $test = Plack::Test->create( $app ); ? As it is, is just loads the config files for development. I want to provide my own configuration programmatically. Creating files in the current directory is not an option. I have tried: config->{'my_stuff'} = \%my_stuff set 'my_stuff' => \%my_stuff but Dancer2 doesn't seems to pick it up or it gets overwritten later by the config from the files. Example: #!/perl ## no critic (Modules::ProhibitMultiplePackages) use strict; use warnings; use 5.014; # JSON::PP included in CORE. package ConfigChangeTest; use Dancer2; set serializer => 'JSON'; get qr{/info}msx => sub { return { appname => config->{'appname'}, }; }; package main; use Test2::V0 -srand => time, qw(:DEFAULT); use Plack::Test; use HTTP::Request; use JSON; use Dancer2; my $appname = 'ConfigChangeTest'; set appname => $appname; my $test = Plack::Test->create( ConfigChangeTest->to_app ); my $req = HTTP::Request->new( GET => '/api/1/info' ); my $res = $test->request( $req ); ok( $res->is_success, 'Is success' ); # Fails! # appname is the one set in the file `environments/development.yml` or + file `config.yml`. is( decode_json $res->content, { appname => $appname, }, 'Is right con +tent' ); done_testing; -- Mikko Koivunalho LinkedIn: http://www.linkedin.com/in/MikkoKoivunalho AboutMe: http://about.me/mikkokoivunalho Blog: http://www.koivunalho.org/blogs/exercises-in-integration-and-delivery/ [ This message has been signed with PGP. Public key attached. ]

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List of DSL keywords
by Gabor Szabo 22 Dec '20

22 Dec '20

Hi, Let's separate this thread as this is a technical issue. Dancer2::Core::DSL might contain the definite list, but I , as a regular user, don't see it I don't see it in the documentation. My suggestion would be either to list them in the POD of Dancer2::Core::DSL or include a link to https://metacpan.org/pod/distribution/Dancer2/lib/Dancer2/Manual.pod#DSL-KE… as that's where they are documented. Gabor On Mon, Dec 21, 2020 at 12:43 PM Russell Jenkins < russell.jenkins(a)strategicdata.com.au> wrote: > ps. The definite list of keywords is in Dancer2::Core::DSL. > > > On 21/12/20 5:14 pm, Gabor Szabo wrote: > > > For example looking for the full list of words in the DSL: > I clicked on both links saying DSL, neither of them had the list, nor a > link to the manual > where I findall found it: > > https://metacpan.org/pod/distribution/Dancer2/lib/Dancer2/Manual.pod#DSL-KE… > > > > >

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Development of Dancer stalling? What to do?
by Gabor Szabo 22 Dec '20

22 Dec '20

Hi, as I am working on the Perl Dancer video course I need to look up lots of things in the documentation on https://metacpan.org/release/Dancer2 and many times I feel either that it is difficult to find what I was looking for For example looking for the full list of words in the DSL: I clicked on both links saying DSL, neither of them had the list, nor a link to the manual where I findall found it: https://metacpan.org/pod/distribution/Dancer2/lib/Dancer2/Manual.pod#DSL-KE… Another thing I was looking for is the list of types one can use out of the box to describe the routes. I could not find it. ------------------------------------- It is frustrating, but this is open source, I can help improve it, right? I thought I'll open a ticket, maybe even send a pull-request. Looked at https://github.com/PerlDancer/Dancer2/ and this made me even more frustrated. There are 110 open issues and 32 open pull-request. That's 32 things some people have worked on and have not been integrated. (If you like, you can compare the numbers with Mojolicious https://github.com/mojolicious/mojo 47 3 Flask https://github.com/pallets/flask 18 4 You can also look at the commit history and you see there was hardly any activity recently. I keep recording the course, but I feel reluctant to open issues or work on pull-request because I don't want to waste my time on something where the chances of integration seem to be so low. ------------------------------------------- Why has the development slowed down? How could it be fixed? Have the core developers (almost completely) lost interest? Do they lack the time? Could companies that use Dancer help financially? Could new people step up to become core developers? regards Gabor

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Dancer DSL vs. Perl Critic
by Mike Diehl 21 Dec '20

21 Dec '20

Hi all, So I've got a line of code like: prefix "/apps/Credit_Card/"; I'm using VS Code, which uses Perl::Critic, to edit the program. When Perl::Critic encounters the line above, it see it as a "problem": String found where operator expected at - line 3, near "prefix "/apps/Credit_Card/"" (Do you need to predeclare template?)syntax error at - line 3, near "prefix "/apps/Credit_Card/"" I know that I can put a ### No critic at the end of the line, but that kind of defeats the purpose of using the tool. How SHOULD I make this "problem" go away? Hope that was clear. Mike.

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Re: [dancer-users] Major sites using Dancer
by Dave Cross 14 Dec '20

14 Dec '20

On Mon, 14 Dec 2020 at 10:24, David Precious <davidp(a)preshweb.co.uk> wrote: > > So - if anyone on-list runs a Dancer-powered site and would be willing > for it to be featured on www.perldancer.org/dancefloor please let me > know :) > Hi, You should probably remove The Political Web from that list. I never had the time to turn it into the site I planned and I'm about to let the domain lapse. In exchange, however, I can offer the Line of Succession, a site offering a view on the line of succession to the British throne going back two hundred years. https://lineofsuccession.co.uk/ Dave...

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Major sites using Dancer
by Andrew Beverley 14 Dec '20

14 Dec '20

Dear all, Does anyone know of any major websites using Dancer/Dancer2? It would be useful to know if there are, to help me build a case justifying its use to others. Thanks, Andy

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Dancer Course recorded this December
by Gabor Szabo 11 Dec '20

11 Dec '20

Hi, I've mentioned elsewhere, but not here yet. I have a little project to create a Dancer video course during the first 25 days of December. Making a little progress every day. My announcement is here: https://szabgab.com/perl-dancer-course.html recorded as a video message. I am building the slides for the course here: https://code-maven.com/slides/dancer/ The course is being published and sold on Leanpub: https://leanpub.com/c/dancer I'd be glad to get your opinion as to what you'd want me to cover. I'll do my best to do that. Gabor

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Dancer2: Rendering markdown to HTML
by Joel Roth 27 Nov '20

27 Nov '20

Hi List, I'd like to author pages as markdown files and render them when requested. I've done something similar in Dancer, now trying Dancer2. Hoping for an easy result using Dancer2::Plugin::MarkdownFilesToHTML. I am trying to get a result from this route: localhost:5000/doc/home But I can't seem to hook up the route with the rendering, and only get 404. The setup I tried follows below. An alternative would be capturing the route with a ** and rendering the page in the route handler. Does anyone have examples of this? Thanks for any ideas! config.yml ========== appname: "mimizufarm" layout: "main" charset: "UTF-8" template: "simple" auto_page: 1 plugins: MarkDownFilesToHTML: defaults: prefix: doc file_root: lib/md template: index.tt layout: main.tt generate_toc: 0 linkable_headers: 0 routes: - home: resource: 'home.md' lib/mimizufarm.pm ================= package mimizufarm; use Dancer2; use Dancer2::Plugin::MarkdownFilesToHTML; our $VERSION = '0.1'; get '/' => sub { template 'index' => { 'title' => 'mimizufarm' }; }; true; -- Joel Roth

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Redirecting user to last page visited
by Richard Reina 13 Sep '20

13 Sep '20

In order to redirect a user from a post route to the last page that they visited do I need to save the name of that page as a session variable and redirect them to it? Or is there an easier and better way? Thanks, Richard

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