Web Services - NET 3.5 WebService Compression For Flex?
Aug 17, 2009
We have Flex applications that connect to our ASP.NET 3.5 Web Applications and usually download lot of data. Now considering XML as transport, for every item, it transmits meta data twice for example.. instead of transferring int value as <Customer CustomerID=23/> it transmits <Customer><CustomerID>23</CustomerID></Customer> .. now here is where bandwidth conservation becomes an issue.
FLEX Can not read GZip and DEFLATE compressed HTTP Response ( So cant use any of them )I heard of some WSCompression but it requires WSE 3.0 now I am skeptical to introduce too many dependency in my hosting environment which requires too much management and overheads. Is WSE 3.0 only dll library which requires no installation on production server? Does it require rewriting all WebService attribute? Or is it simple one time configuration and more or less, anyone knows does it work with Flex ? Flex dynamically generates web services, and we use lot of its auto generated code, now if we want to support compression then do we need to rewrite lot of code?
Simplest solution I can think of is, reduce unnecessary XML tags and reduce them down to attributes to save bandwidth. Is there an easy way to achieve it, our classes has more then 50-70 properties, I understand it will be nightmare to add attributes to each property but we dont know how to do it in case of SOAP.
I am developing a Flex application on top of Mate framework. In this application, I am using a webservice to retrieve data.As this webservice as not a fix location URL (depending on where customers installed it), I define this URL in a config file.When the Flex application starts, it first reads this config file, then I would like to use the value I found to initialize the webservice.But currently, I have no idea how to this.
I wish to develop a softare for 3D object compression (by polygon reduction) in flex using papervision 3D. Could you please suggest me an efficient algorithm for the same?
I need to compress video image data (lets say a display object) in AS3 to a Byte Array with high compression at runtime. Framerate only needs to be around 5 but 1024x768 video needs to go to < 40 Kilobyte per Second without the quality being too bad. I wrote a custom encoder and got it to around 80-100 Kilobyte per Second for 1024*768 which still is too much and I don't see a lot of improvements to be mad to my encoder.
Using JPG or PNG Encoder gives way higher KB/s. Is there any open source way to to decode and encode video in as3 at runtime ? E.g. a H.264 as3 encoder and decoder ? Or other codecs? Or maybe a C# source code of h.264 encoder and decoder ? I think I could port it to as3. Doesnt need to be h.264, just something with good quality when running at 5 Frames/Sec and 40 Kilobyte...
I've been searching for the last couple days but can't seem to find a basic example of what I'm looking for. I'm developing a Flex 4.5 app and in it I have a viewstack of 2 components that use some of the same services. Currently the only way I can get the app to correctly use the web services is by defining 2 different web services that use the same PHP web service file. For example: I have an app, and within it I have a viewstack with tab navigation of 2 components: #1) retrieve a list of all Salary Employees, and #2) retrieve a list of all Contractors. Currently to get it working I am defining a UsersTableEmployees webservice within component #1 and a UsersTableContractors webservice within component #2, but they both point to the same PHP class, and only differ in the arugment value I pass to them. Ie, getUsers("employee") and getUsers ("contractors"). Of course this is not best practice.
Searching StackOverflow and Google gives me many results about ColdFusion and MVC (example What's the best way to share data between components in Flex?), but I'm still confused. Can anyone here point me to a basic example (even sample MVC) and source code of an app that uses Zend AMF and allows different components to call common web services?
I am developing an application with multiple windows, all using their own web services.Is it bad practice to use more than one web service per application? If so, what are the disadvantages?
Although iPhone support JSON natively, AMF is a binary protocol and it supposes to use much less bandwidth. Do you think using AMF is a good idea?Just found this AMF library in cocoa (Objective-C):Here's the famous benchmark that shows AMF is smaller and faster than JSON + gzip in Flex:
Today I tried to connect to other domain.I changed url of endpoint, but it looks like flex just ignores my changes.I am sure that an old url doesn't exist in any file in src directory,I even renamed services-config.xml to services-config2.xml, cleaned and rebuilded project many times, even made a release build, but it still connects to the same domain.I have tested flex application in localhost and in the same domain, that has AMF services, but it works in the same way.My services-config.xml is:
We are planning to use flex and Java Web Services, what is the best practice to consume web service from flex is it better to directly call the web service from Action scripts or to use remoting where java client will call the web services and later flex using remoting will the java client?
I have some problem with calling web service from flex. I have service with name UserService with one method string GetData(int i). I want to call this method from flex and get data. My code is here:
protected function application1_creationCompleteHandler(event:FlexEvent):void uService = new UserService(); uService.addEventListener("hello", echoResultHandler); uService.GetData(1);
I am using flex/actionscript. i have created a webservice with following path [url]... When i run the above url its works fine. but when i use it using httpservice and send method it is giving me error. event[code]...
I am creating a flex dashboard using flash builder. I initially created a flex web based program without any server. This dashboard gets data from SAP query_view_data. And works fine. Now i wanted to host this on IIS. So i created released built. However after deploying on IIS. I receive error : "Security error accessing url.Unable to load WSDL. If currently online, please verify the URI and/or format of the WSDL ". Is this because of some crossdomain.xml. I added this to my webroot, However no luck.
I have an application in Flex how create and XML in UTF-8. When I open it everything is ok.I send it to a server using a webservice (the xml is send like a string), the server receive the xml but all the accent, degree symbol and some other stuff are gone.
I create an XML and save it in a file
var xml:XML = myObject.xml; file = new File(myObject.path); var fileStream:FileStream = new FileStream();
What would be the best way to secure .net web services used by a flex application (both desktop and browser) that requires login? I thought about requesting the user and password in every method of the web service, and having them stored as variables in the flex app, but I don't feel like this is the most elegant way.
from flex, when calling a .net web method that returns a custom class, I always recieve an ObjectProxy, even if I have the same class created on flex. How do I manage this ObjectProxy as the class I have?
I had this error in a Flex Application that I couldn't figure out. Every time the app attempted to access the Web Service it returned the error Security Error Accessing URL.
I am a new flex developer.I would like to know about the LCDS. What it does?How to configure it?Do I need to know Java? Can I get some sort of tutorial pdf for it? I have it on my system. I need to know about it.
I have My Sharepoint Web Service URL, but when i try to access it i get HTTP Request Error. My Share point Webservice has credentials in it. I have also set that in Flex.
webService.setRemoteCredentials("CITMOSSAdministrator","Pa$$w0rd"); When i trace the url, my console does read the XML, but i am unable to call the method. It throws me HTTP Request Error.
I am working on a flex application which makes calls to an .NET webservice. I am trying to follow the MVC design pattern. I have created a model, which stores all information received from the webservice. The webservice itself is created by actionscript in the controller. The view in my case, consists of various user-defined components (multiple .mxml files).
The Model is a singleton class, and each of the views accesses a getInstance of the model. The question is how do i access the webservice (i.e. controller) from each of these components? Does the controller also need to be a singleton class just like the model? and let each component get an instance of the controller in order to access the webservice?
I am using a webservice deployed on SAP Web Application Server to create some charts. While migrating my FLEX application from dev to QA, I also wish to change the address of my target webservices in flex, so that they access webservices from QA. What I did was add the target server address as a URL parameter and add these URL parameters as flashvars in Flex.
var wsdlUrl= window.location.search.substring(1); flashvars.serverUrl = wsdlUrl;
Now I try to access the flashvars during declaration of the webservice
I want to declare a webservice in .mxml and pass it to a function in a separate class. The problem: callresponder's lastresult never gets updated when the call is succesfully made.[code]...
I am using Flex/Flash to build a UI which front-ends my Rails server application. I am using WebORB as the communication mechanism. My question should apply beyond just WebORB, however. (I think).
Specifically, it has to do with the services-config.xml file. I have a local (laptop) dev environment, a remote dev and a remote production environment. I am sick of editing the URL in the services-config.xml file, rebuilding and deploying every time I want to test in a different environment.
[Code]...
By setting the URI="/weborb" and giving it a relative path, I figured it would work. locally--but it doesn't when I deploy it to my remote dev and prod environments (Heroku). Weird.
