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SignalR Intro + WPDev integration @ Codetock

  1. Samidip Basu Windows Phone + SignalR = Awesome Possibilities!
  2. CodeStock is proudly partnered with: RecruitWise and Staff with Excellence - Send instant feedback on this session via Twitter: Send a direct message with the room number to @CodeStock d codestock 503 This session is great! For more information on sending feedback using Twitter while at CodeStock, please see the “CodeStock README” in your CodeStock guide.
  3. The Hardest Problems Solved By the Best Engineers
  4. Local Touch – Global Reach Intro to SignalR + Awesome Mobile Possibilities ! Samidip Basu Solutions Lead | MSFT Mobility Email: Twitter: @samidip Blog: Sogeti USA 8425 Pulsar Place, Suite 300 | Columbus, OH 43240.
  5. @m3conf Be there .. Or stay
  6. SilverlightShow ( – online portal for everything Silverlight, XAML and Windows Phone, 10K+ members. * daily news * tutorials * exclusive articles * forums * free webinars * events * ebooks * newsletters CompletIT ( – Silverlight and Windows Phone trainings, consultations and development company, founder of SilverlightShow. * Individual and group, on-site and online trainings * Standard and custom course schedules * Trainings by Silverlight MVP, MCT
  7. Why do we need real-time? New email Twitter/Facebook updates Stock Ticker/Live Auctions Game Scores Real-time Notifications Turn-by-Turn Games Collaboration Progress Bars And obviously, Chat
  8. Existing Technologies HTTP – purely Request/Response protocol Internet – stateless; servers don’t call your app back Consumption model .. But we’ve learnt tricks Periodic/Ajax Polling – not real-time, bandwidth misuse Image courtesy
  9. Existing Technologies .. Contd. Use plugins like SL/Flash – to access sockets Native Web Sockets help – but low level & support flaky Long Polling – server does not respond unless X happens, client polls after data receive or time-out Image courtesy @maartenballiauw
  10. Enter SignalR An async, persistent connection/signalling library for .NET ... aids in building real time, multi-user connected applications. Persistent client-server connection over best transport .. Abstracts away the transport layer. From ASP.NET team-members (Damian Edwards & David Fowler) .. Not officially MSFT product, but OSS Boom!  SignalR is broken up into a few packages on NuGet: SignalR - Package for SignalR.Server and SignalR.Js SignalR.Server - Server components needed for SignalR endpoints SignalR.Js - Javascript client for SignalR SignalR.Client - .NET client for SignalR SignalR.WP7 & SignalR.Silverlight – For the cool folks  SignalR.WebSockets - WebSocket Transport for SignalR
  11. Live Demos Whoa .. What happened here? Client calls server; Server calls client; seamlessly No polling, at least in our code Server maintains Clients .. Broadcast to all, group or individual clients Low level – PersistentConnection; more control Abstraction – Hub; easier to use
  12. Where does this fit? Other technologies have solved this problem Socket.IO is a client-side Jscript library that talks to node.js Nowjs supports namespace sync between client-server Primary SignalR advantages → Simplicity & ease of use → Works natively in .NET → Works out of browser → Supports Web Sockets through a NuGet package [ASP.NET 4.5/IIS 8 on Win8 only] WebSocket is a web technology providing for multiplexing bi-directional, full-duplex communications channels over a single TCP connection. Still being standardized. → Works on other platforms
  13. SignalR Client for iOS
  14. SignalR Client for Mono
  15. Local Touch – Global Reach Questions? Thank you !! @samidip