Project Phoenix - From PHP to the Play Framework in 3 months

Project Phoenix - From PHP to the Play Framework in 3 months
@elmanu#playframework From PHP to the Play Framework in 3 months Manuel Bernhardt @elmanu http://manuel.bernhardt.io
@elmanu#playframework Agenda • Background • Building the new platform • Data migration • Operations • Summary & Future
@elmanu#playframework Your speaker •Freelance software consultant based in Vienna ! •Web, web, web •Scala, Akka, Play Framework ! •Vienna Scala User Group ! •Open-Source
@elmanu#playframework Talenthouse •www.talenthouse.com ! •based in Los Angeles ! •connecting brands and artists ! •3+ million users
@elmanu#playframework Background •Problems with the old site • Slow • Developed by an external company • Hard to evolve
@elmanu#playframework Background •Solution: new site! • Scala • Play Framework • AngularJS • elasticsearch • …
@elmanu#playframework Background •A few interesting aspects • Source code may not be available • Data spread out in many places • Only 3 months time
@elmanu#playframework Background •A few interesting aspects • Source code may not be available • Data spread out in many places • Only 3 months time
@elmanu#playframework Agenda • Background • Building the new platform • Data migration • Operations • Methodologies & Tools • Summary & Future
@elmanu#playframework Building the new platform
@elmanu#playframework Building the new platform
@elmanu#playframework
@elmanu#playframework • MVC framework ! • Compile as much as possible • “Reactive”
@elmanu#playframework http://www.reactive-manifesto.org
@elmanu#playframework Load balancer
@elmanu#playframework Load balancer
@elmanu#playframework Building the new platform Data access?
@elmanu#playframework Building the new platform Anorm Data access? Squeryl
@elmanu#playframework Building the new platform Anorm Data access? Squeryl
@elmanu#playframework Building the new platform Anorm Data access? Squeryl SORM Tiramisu
@elmanu#playframework Building the new platform • Started with Anorm • Too verbose ! • Switched to Slick • Plain SQL with neat string interpolation • DSL for composing queries
@elmanu#playframework Building the new platform def fetchItemWithRelevanceSort(userId: Long, skip: Int, limit: Int)! (implicit s: Session): List[Item] = {! val q = for {! i <- items if !i.deleted! ! && i.visible_on_profile! ! && i.user_id === userId! } yield i! ! q.sortBy(item => (item.selected.desc, item.created_on.desc))! .drop(skip)! .take(limit)! .list! ! }
val query = sql"""! with invites_for_market as (! select #$inviteSL, #$inviteMarketSL! from invite i! inner join invite_market im! on i.id = im.invite_id! and im.market_id = ${marketId.id}! where i.art_type = ${artType.toString}! and i.visibility_state = ${InviteVisibilityState.Public}! and i.deleted = false! order by i.submission_start desc, i.id desc! limit $limit! offset $skip! )! ! select ifm.*, #$localInviteSL! from invites_for_market ifm! inner join local_invite li! on ifm.id = li.invite_id! and li.completed = true! order by ifm.submission_start desc, ifm.id asc! """! val queryResults = query.as[(Invite, InviteMarket, LocalInvite)].list!
@elmanu#playframework Building the new platform Front-end & UI
@elmanu#playframework Building the new platform • Recently open-sourced by Facebook ! • Virtual DOM, fast ! • Very easy to integrate in a page (less invasive than Angular) ReactJS
@elmanu#playframework Building the new platform • Build pipeline using gulp.js & bower ! • Assets pipeline • LESS compilation • JS minification • Upload assets to Cloudfront • Integrates translations from Crowdin • Washes the dishes
@elmanu#playframework Data migration: source system(s)
@elmanu#playframework Data migration: migration schedule
@elmanu#playframework Data migration • Akka to the rescue! ! • Concurrent user migration ! • Concurrent item migration • Using Play’s WS library for async calls to Youtube and friends
@elmanu#playframework Data migration User migrator Worker Worker Worker Worker Worker
@elmanu#playframework Data migration Item migrator
@elmanu#playframework Data migration Item migrator User item migrator User item migrator User item migrator
@elmanu#playframework Data migration Item migrator Item migration worker User item migrator User item migrator User item migrator Item migration worker Item migration worker Item migration worker Item migration worker Item migration worker
@elmanu#playframework Data migration Item migrator Item migration worker User item migrator User item migrator User item migrator Item migration worker Item migration worker Item migration worker Item migration worker Item migration worker File fetcher File fetcher
@elmanu#playframework Data migration Item migrator Item migration worker User item migrator User item migrator User item migrator Item migration worker Item migration worker Item migration worker Item migration worker Item migration worker File fetcher File fetcher File uploader File uploader
@elmanu#playframework Data migration Item migrator Item migration worker User item migrator User item migrator User item migrator Item migration worker Item migration worker Item migration worker Item migration worker Item migration worker File fetcher File fetcher File uploader Soundcloud worker File uploader
@elmanu#playframework Data migration
@elmanu#playframework Operations Operations
@elmanu#playframework Operations
@YourTwitterHandle#DVXFR14{session hashtag} @elmanu#playframework Sum m ary & Future
@elmanu#playframework Summary & Future • Play Framework does not get in the way • Easy to deploy and operate • Many, many integrations ! • Many plans for the future • Live activity feed • Similarity search ! • Talenthouse is hiring!
@YourTwitterHandle#DVXFR14{session hashtag} @elmanu#playframework Q & A

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