Self Introduction • Takayuki Fukumoto a.k.a papix • https://papix.net • CPAN: https://metacpan.org/author/PAPIX • Board member of Japan Perl Association • Vice chairman of next YAPC::Japan • Attended YAPC::EU 2015 (Granada)
Current status of Perl in Japan • About 10 years ago, Perl was very popular programming language in Japan • Some large SNS / portal service were using Perl: Livedoor, DeNA and mixi • Many study sessions were held • JPA established in 2008
Current status of Perl in Japan • In 2019, Perl is not popular in Japan as a language for web service development • Around 2010, several WAF became popular in Japan • Rails 3, CakePHP 2.0, Symphony 2.0 etc. • Many engineer want to use these WAF
Current status of Perl in Japan • Now, many engineers use Ruby (RoR), PHP, Go, Python, Scala etc. • Static typing language is very popular in Japan • And many Perl code was replaced other language
But... • We are using Perl! • JPA is still active • My company is one of them • In this section, I'd like to talk about some techniques when we use Perl • Architecture, CPAN modules, tools...
Hatena Co., Ltd. • Founded in 2001 • "Hatena" means "?" in Japanese • Located in Kyoto and Tokyo • Developing many web services using Perl and other languages • For example...
Hatena Bookmark • Social bookmarking platform in Japan • Similar to Reddit, Hacker News, delicious... • Replaced from Perl to hybrid of Scala & Perl • see also: How we replaced a 10-year-old Perl product using Scala https://speakerdeck.com/tanishiking/how-we-replaced-a-10-year-old-perl-product-using-scala
Hatena Blog • Self-publishing blog service in Japan • Similar to WordPress, Tumblr, Medium... • Released in 2011 • Small developer team • 5 engineers, 2 designers, 1 SRE
Hatena Blog: Our Philosophy of Code • "Minimize the code to read by developer" • So, we don't use existing WAF! • like Mojolicious, Amon2... • Build tiny WAF using several CPAN modules: • Plack + Router::Simple... • Text::Xslate, JSON::XS...
Hatena Blog: Our Philosophy of Code • In addition, we don't use convenient ORM • like DBIx::Class, Class::DBI... • We use DBIx::Sunny (simple DBI wrapper) • see also: Strongest Web Service Framework I Thought https://www.slideshare.net/cho45/yapc-asia-2011 (Japanese)
AWS X-Ray • Analyze and debug production • Tracing our web service and show details: • Time taken to process • Show external HTTP request • SQL query / fetched row
App::ccu • ccu = cpanfile-check-updates https://github.com/akiym/cpanfile-check-updates • Display renewable modules and those changes by parsing cpanfile / snapshot
Perl Community in Japan • As above, Perl is not popular language in Japan • However, some people still use and enjoy using Perl! • I'd like to talk about approach to support Perl Mongers in Japan
Japan Perl Association (JPA) • JPA is a Perl user group in Japan • Some companies are participating in JPA • And they are nominates board member • Board member operate JPA • Funds are supported from sponsors
YAPC::Japan • Conference on Perl in Japan • Until 2015, JPA operated YAPC::Asia • In 2016, rebooted as YAPC::Japan • YAPC::Japan is operated by JPA and some volunteer staff
YAPC::Japan • Held in some cities: • YAPC::Hokkaido 2016 Sapporo • YAPC::Kansai 2017 Osaka • YAPC::Fukuoka 2017 Hakata • YAPC::Okinawa 2017 Onnason • YAPC::Tokyo 2018
YAPC::Japan • In YAPC::Japan, we talk about various topics • YAPC::Japan is conference of Perl and some topics related to Perl • For example, infrastructure, team management, security, education...
YAPC::Japan • Of course, there are many advanced talks about Perl!!! • Takahiro Shimizu's "How to build traditional Perl interpreters" is one of them • This is spoken at YAPC::Tokyo 2019
Local Communities • There are some pm in Japan • Hokkaido.pm, Shibuya.pm, Kichijoji.pm, Kansai.pm, Fukuoka.pm, Okinawa.pm... • JPA supports these communities • Detach a famous Perl Monger to study session • Support operational cost
Perl Entrance • Introductory class for Perl • Teach Perl to inexperienced people • JPA supports this community • I spoke in YAPC::EU 2015 https://speakerdeck.com/papix/teaching-and-learning-perl
Conclusion • I talked about current status of Perl in Japan • Web service developing and Community • I'm grad if our knowledge is helpful for you • I think we have many things in common and differences • I'd like to interact with you about them!
papix
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