Caching WCF javascript proxy on browser

Omar Al Zabir

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4 Apr 2012CPOL3 min read

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WCF Javascript Proxies (Service.svc/js) are never cached. They get generated and downloaded on every page view thus increasing page download time and server CPU. Here's an HttpModule to cache WCF Javascript Proxy on browser and respond with HTTP 304, if unchanged.

WcfJavascriptProxyCaching.zip
- WcfJavascriptProxyCaching
  - WcfJavascriptProxyCaching.sln
  - WcfJavascriptProxyCaching.suo
  - WcfService1
    - App_Data
    - bin
      - WcfService1.dll
      - WcfService1.pdb
    - Default.aspx
    - Default.aspx.cs
    - Default.aspx.designer.cs
    - Global.asax
    - Global.asax.cs
    - IService1.cs
    - JavascriptProxyCacheModule.cs
    - obj
      - Debug
        
        DesignTimeResolveAssemblyReferencesInput.cache
        
        TempPE
        
        WcfService1.csproj.FileListAbsolute.txt
        
        WcfService1.dll
        
        WcfService1.pdb
    - Properties
      - AssemblyInfo.cs
    - Service1.svc
    - Service1.svc.cs
    - WcfService1.csproj
    - WcfService1.csproj.user
    - Web.config
    - Web.Debug.config
    - Web.Release.config


Microsoft Visual Studio Solution File, Format Version 11.00
# Visual Studio 2010
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WcfService1", "WcfService1\WcfService1.csproj", "{82030C51-136B-4B72-AAC0-6B568D10A2FD}"
EndProject
Global
	GlobalSection(SolutionConfigurationPlatforms) = preSolution
		Debug|Any CPU = Debug|Any CPU
		Release|Any CPU = Release|Any CPU
	EndGlobalSection
	GlobalSection(ProjectConfigurationPlatforms) = postSolution
		{82030C51-136B-4B72-AAC0-6B568D10A2FD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
		{82030C51-136B-4B72-AAC0-6B568D10A2FD}.Debug|Any CPU.Build.0 = Debug|Any CPU
		{82030C51-136B-4B72-AAC0-6B568D10A2FD}.Release|Any CPU.ActiveCfg = Release|Any CPU
		{82030C51-136B-4B72-AAC0-6B568D10A2FD}.Release|Any CPU.Build.0 = Release|Any CPU
	EndGlobalSection
	GlobalSection(SolutionProperties) = preSolution
		HideSolutionNode = FALSE
	EndGlobalSection
EndGlobal

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By

Omar Al Zabir

Architect BT, UK (ex British Telecom)

United Kingdom

I am: Head of Engineering Consumer CRM & Billing, BT (ex British Telecom).
I got: 11 Microsoft MVP Awards, 4 CodeProject MVP awards.
I like: Performance and Scalability Challenges.
My Book: Building a Web 2.0 portal using ASP.NET 3.5. Also on Amazon
My Blog: http://omaralzabir.com
My Specialization: Web 2.0, SaaS, Performance and Scalability of Web Apps.
My Email: OmarALZabir at gmail dot com

Follow Me: twitter.com/omaralzabir

My Projects:
Droptiles: Open Source Web 2.0 AJAX Portal
SQL Server real-time monitor
Oracle real-time monitor
Codeuml - UML diagrams as fast as you can type
Fastest Streaming AJAX Proxy
CPU Alerter - Save power, work faster

My Articles:
Top 10 caching mistakes
99.99% Available Production Architecture
10 ASP.NET Performance and Scalability Secrets
UFrame: UpdatePanel and IFRAME combined
Fast ASP.NET web page loading
Fast Streaming AJAX Proxy
Using COM safely inside "using" block without requiring interop assembly
Implementing Word Like Automation Model
Distributed Command Pattern

Caching WCF javascript proxy on browser

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