microsoft signal r
DESCRIPTION
TRANSCRIPT
Pranav Rastogi
Program ManagerMicrosoft
Twitter : rustd
ASP.NET SignalRReal time web made
simple
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ASP.NET SIGNALR
INTRODUCTIONSIt always helps to know who you’re dealing with, so here’s a little background on me.
@rustd
ASP.NETProgram Manager
http://blogs.msdn.com/pranav_rastogi/
Author
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WHAT IS ASP.NET SIGNALR?Incredibly simple real-time web for .NET
Simplicity
Reach
Performance
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HOW SIMPLE?
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HOW CAN I USE REAL-TIME IN MY APP?Anytime a user refreshes the page or you use polling
Dashboards & monitoring
Collaborative anything
Job progress
Real-time forms & concurrency management
Gaming…
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SHOOTR.SIGNALR.NET
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SIMPLICITYREACHPERFORMANCE
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SIMPLICITY: TWO-LEVEL API
ConnectionsLow level
Raw strings up & down
Broadcast to all clients, groups or individuals
Connection, reconnect & disconnect semantics
HubsBuilt on top of connections
RPC from client-server *AND* server-client
Automatic client proxy generation (JavaScript)
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CONNECTIONS VS. HUBS
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CONNECTION LIFETIMEA SignalR connection’s lifetime may be made up of many physical connections
Events are raised on both server and client
Fast disconnect for “clean” abort, timeout based for “unclean”
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SIMPLICITYREACHPERFORMANCE
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REACH: BUT WHAT ABOUT WEBSOCKETS?WebSockets works if…You use ASP.NET 4.5 on Windows Server 2012 AND
Client uses IE10 or latest Chrome, FF, Safari AND
Your load balancer/reverse proxy supports it AND
Client proxy server/NAT supports it AND
Everybody between client & server supports it AND
You’re happy coding against raw sockets AND
You manage scale-out yourself
SignalR works…Everywhere
We’ll try WebSockets then fallback to:
• Server Sent Events
• Forever Frame
• Long Polling
We give you a simple & powerful API to work with
We do our best to keep the logical connection up, including retry logic if transports fail
We scale-out to web-farms
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TRANSPORT NEGOTIATION
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REACH: CLIENTS FOR EVERYBODY!
Right nowJavaScript (jQuery)
.NET 4.0/4.5
Silverlight 5
Windows Store apps
Windows Phone 8
Portable Class Library
MonoTouch
MonoDroid
In the futureC++
Pure JavaScript (no jQuery)
iOS native
Java
.NET Micro Framework
…
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MIXED CLIENTS
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SIMPLICITYREACHPERFORMANCE
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PERFORMANCE: THROUGHPUT & SCALEThroughput
Very high performance on a single box
100,000’s of messages per second
Very low memory overhead
Scale
Fully async to optimize resource utilization
1,000’s of connections per server
Supports horizontal scale-out using a pluggable message bus backplane (Azure Service Bus, Redis, SQL)
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SCALE-OUT
web nodes
clients
backplane
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THERE’S MORE…
Host-agnosticRun it in your ASP.NET application or standalone with self-host on OWIN
Cross-platformRun it on OSX or Linux with Mono
Open Source#1 watched C# repo on GitHub
SupportedSupported part of the ASP.NET family
Documentation at www.asp.net/signalr
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RELATED CONTENT
ASP.NET Identity & Security Introduction to .NET Web Development
on Azure Microsoft ASP.NET, Web, and Cloud
Tools Preview
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THANK YOU!!!