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

Social Login with Dancer2
by Dave Cross 12 Feb '20

12 Feb '20

Hi all, For a project I'm about to start on, I want to add social login (Google/Twitter/Facebook) to an existing Dancer2 app. I could dive in and teach myself how it all works, but I thought it might save a bit of time if I could see how someone else has done it and borrow a line or two of code. So if anyone has an example that I could look at, that would be great. Cheers, Dave...

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Re: [dancer-users] dancer2 email plugin help
by Peter Mottram 27 Jan '20

27 Jan '20

Hi Daan (replying to Dancer users mailing list in case anyone else has insights) This sounds like a mail transport issue rather than anything else. Dancer2::Plugin::Email is a tiny wrapper around Email::Sender::Simple which tries to make a best guess regarding transport to use. If you are running on a Linux or other UNIX-like system then it will generally try sendmail unless you have some other transport configured for the plugin. I'd start by checking the mail queue on your server and also check its mail logs to see what is happening. Regards Peter On 25/01/2020 15:14, info(a)posandro.com wrote: > Hey bud, > > Dancer2::Plugin::Email > <https://metacpan.org/pod/Dancer2::Plugin::Email> suddenly stopped > working on my live environment.. it says email sent but not getting > any email. It seems to work on my local machine but not on live. I > recently changed my ssl and nginx conf file, not sure if > related. Below is what I changed in nginx. > > ssl_protocols TLSv1.2; > ssl_prefer_server_ciphers on; > ssl_ciphers > "ECDH+AESGCM:ECDH+AES256:ECDH+AES128:DH+3DES:!ADH:!AECDH:!MD5"; > > > Any help, much appreciated. > > Best, > > *Daan | **Developer > > **T: +44 (0) 7794 895 641 **| info(a)posandro.com |* *www.**posandro**.com > * <https://www.posandro.com/>*Izabella House, 24 – 26 Regents Place, > Jewellery Quarter, Birmingham, United Kingdom, B1 3NJ** > <http://www.castletonplc.com/>* > *NOTE:* This email contains proprietary information some or all of > which may be legally privileged. It is for the intended recipients > only. If you are not an intended recipient you must not use, store, > disclose, distribute, copy, print, or rely on this email in any form > or manner. Posandro disclaim all responsibility and accept no > liability (including in negligence) for the consequences for any > person acting, or refraining from acting, on such information. If you > have received this email message in error, please notify me > (Developer) immediately by email or telephone. Please also destroy and > delete the message from your computer. >

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Dancer2 0.300000 Released
by Jason Crome 24 Dec '19

24 Dec '19

The Dancer Core Team has one more holiday treat in store for you: Dancer2 0.300000 is headed to CPAN, and it's a good one: Dancer now offers typed route parameters! To be clear, all of the existing route syntax is unaffected. You don't have to use types, and typed parameters might not be good for all situations. There is a lot to be gained from having them though, and we're excited to bring them to you! Using them in your own code is simple: get '/thing/:id[Int]' => sub {}; # if not Int then perhaps a Num... get '/thing/:id[Num]' => sub {}; The default type checking library is Type::Tiny, but you can also specify your own type checking library too. See the manual for more information. A big thanks to SysPete for making this long-standing request a reality. I'd also like to apologize to Tom Hukins. I erroneously listed a PR of his in the last release that didn't seem to make it in. I believe that I have made things better in this release. Happy holidays from your friends at Dancer! See you in 2020. Jason A. Crome / CromeDome CPAN: https://metacpan.org/author/CROMEDOME github: https://github.com/cromedome Twitter: https://twitter.com/cromedome

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Dancer2 0.208002 Released
by Jason A. Crome 14 Dec '19

14 Dec '19

Your gift is arriving just a bit early this year: a new Dancer2 just in time for the holidays! There are a number of documentation fixes and enhancements in this version. The largest change you will see under the hood removes Return::MultiLevel (and therefore Scope::Upper) from the list of Dancer2 dependencies, and makes your favorite lightweight web application framework just a little bit lighter. The full changelog follows: 0.208002 2019-12-14 16:08:46-05:00 America/New_York [ BUG FIXES ] * GH#1527: Update travis dist to 'trusty' (Sergiy Borodych) [ ENHANCEMENTS ] * GH #1525: Remove use of Return::MultiLevel, and implement stack frame jumping manually (Graham Knop) [ DOCUMENTATION ] * GH #1505: Fix Flaskr link (Mohammad S Anwar) * GH #1506, 1520: Explain what add_route() does with args (Tom Hukins) * GH #1519: Fix Template Toolkit config docs (Tom Hukins) * GH #1522: Fix itetare typo (Stefan Hornburg - Racke) * GH #1523: Fix typo in Template Toolkit documentation (Mike Katasonov) * GH #1524: Fix error in configuration documentation (Tom Hukins) * GH #1526: Mention that TT2 config start_tag/end_tag need escaping (Chris White) * GH #1528: Note that"Engines" key must be merged in config.yml (Chris White) Barring any show-stopping bugs or security vulnerabilities, this will be the last release of the year. Happy holidays, and we will see you in 2020! Jason A. Crome / CromeDome CPAN: https://metacpan.org/author/CROMEDOME github: https://github.com/cromedome Twitter: https://twitter.com/cromedome

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Web Site
by John Churchill 28 Nov '19

28 Nov '19

Hello, I wanted to let someone know that the Dancer advent web site is down. http://advent.perldancer.org Hopefully, this can be fixed. Thanks, -John

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Dancer2 0.208001 Released
by Jason Crome 05 Aug '19

05 Aug '19

The Dancer Core Team just released a minor update, which is on its way to your favorite CPAN mirror now. The fixes include: * GH #1515: Add Types::Standard to cpanfile (Russell @veryrusty Jenkins) * GH #1513: Fix Dancer2::Test typo (Utkarsh Gupta) Keep on Dancing! Jason A. Crome / CromeDome CPAN: https://metacpan.org/author/CROMEDOME github: https://github.com/cromedome Twitter: https://twitter.com/cromedome

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Dancer crashing
by Hermann Calabria 24 May '19

24 May '19

I have a large Dancer application that crashes rarely with the attached stack trace. I haven’t yet identified any specific code or pattern that triggers the crash; if I restart (perl ./bin/app.pl) and repeat exactly what I was doing prior to the crash, it usually works just fine. Versions: Perl 5.26.2 Dancer 1.3500 Is this a known problem? Solutions? Stack trace: Use of uninitialized value in subroutine entry at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/HTTP/Server/Simple.pm line 397. HTTP::Server::Simple::__ANON__("Dancer::Handler::Standalone::NetServer0") called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/HTTP/Server/Simple.pm line 342 HTTP::Server::Simple::__ANON__("Dancer::Handler::Standalone::NetServer0", "port", 8080) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/HTTP/Server/Simple.pm line 306 HTTP::Server::Simple::run(Dancer::Handler::Standalone=HASH(0x562484f61698)) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/Dancer/Handler/Standalone.pm line 38 Dancer::Handler::Standalone::start(Dancer::Handler::Standalone=HASH(0x56247b0cf578)) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/Dancer/Handler.pm line 209 Dancer::Handler::dance(Dancer::Handler::Standalone=HASH(0x56247b0cf578)) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/Dancer.pm line 496 Dancer::_start() called at ./bin/app.pl line 235 Bad arg length for Socket::sockaddr_family, length is 0, should be at least 2 at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/HTTP/Server/Simple.pm line 397. HTTP::Server::Simple::__ANON__("Dancer::Handler::Standalone::NetServer0") called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/HTTP/Server/Simple.pm line 342 HTTP::Server::Simple::__ANON__("Dancer::Handler::Standalone::NetServer0", "port", 8080) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/HTTP/Server/Simple.pm line 306 HTTP::Server::Simple::run(Dancer::Handler::Standalone=HASH(0x562484f61698)) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/Dancer/Handler/Standalone.pm line 38 Dancer::Handler::Standalone::start(Dancer::Handler::Standalone=HASH(0x56247b0cf578)) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/Dancer/Handler.pm line 209 Dancer::Handler::dance(Dancer::Handler::Standalone=HASH(0x56247b0cf578)) called at /home/hermann/perl5/perlbrew/perls/perl-5.26.2/lib/site_perl/5.26.2/Dancer.pm line 496 Dancer::_start() called at ./bin/app.pl line 235 Thanks in advance!

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[Off Topic] Flask v Dancer
by Zahir Lalani 25 Apr '19

25 Apr '19

Not a direct Dancer question but more a comment I am having to look for a python framework (the client does not feel perl has longevity!) and based on Dancer2's experience I have been looking for something similar and found Flask. Django seems to prescriptive and big. However, you only realise how damn good Dancer really is when you see how much there isn't in flask, despite it being one of the leading python frameworks. Wish I could dance my way out of this..... Z

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potential memory leak?
by Zahir Lalani 21 Mar '19

21 Mar '19

Hi All We have a weird issue and suspect its possibly a memory leak. I need some guidance as to how to debug this and solve it. We use Dancer2 and Starman, fronted by Apache Use Case: We have an image gallery where the user can browse images based on a variety of criteria. The gallery is page driven, and the user navigates using previous/next buttons. Each page displays 36 images. Although starman handles all routes, it does not handle the delivery of the images. We use an apache module called xsend which offloads the delivery to apache and allows starman to focus on data queries. We find that for certain clients who use the gallery heavily, after many page navigations some of the images on the page cause 302's and loses the session, so the user has to login again. We can run the image route in another browser session and its fine. The "break" does not happen at a consistent place. The code that does xsend relies on "halt" as follows: Sub send_the_file{ # do the queries to get the image details and physical path # now make the xsend request: header('Content-Type' => $mime); header("X-Sendfile" => $file); header('Content-Disposition' => "inline; filename=\"".encode_utf8($file_name)."\";"); debug('halting for xsend'); halt('xsend'); } This method is called through multiple code layers. From what I can tell, halt replace return, but it also says that it stops processing at the point of halt. We have been looking through logs and cannot see anything specific apart from the 302's and loss of session. Any guidance on how to proceed with this would be much appreciated Z

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Help 504 Gateway Timeout
by Richard Reina 15 Jan '19

15 Jan '19

If any one can help I have a bit of an emergency. I made some changes to my dancer app that runs on starman/nginx and now I get error 502 timeout. Know very little about how to trouble shoot in and if I don't solve in the next few hours I am in big trouble. Any ideas appreciated. Thanks

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