Architecture :: WCF Service Be Used To Receive Data As Needed From A Remote Sender Or Service?
Feb 25, 2011
I am not sure which approach I should use. I have a web application that needs to get/receive data from a third party application that is in a secure remote network. The data needs to be secure during transport. The data layers cannot be exposed and the databases will not talk to each other. The data will be received from remote application on demand, or will get at scheduled intervals.
I have looked at WCF, but not sure if this will work. Can a WCF service be used to receive data as needed from a remote sender or service? Is this a secure way of doing it? I have also looked at SFTP using some XML/XSLT, but I don't think this is the right way to go. In addition, some data may be transported from my web application to the remote application (mostly reports at first). What protocols are used to transfer data between HIPAA compliant applications?
I'm currently trying to work out the best way to build this web application, which will then be intergrated on other systems, such as WinForms, Intranets etc.
We hope to include the usual layers i.e. DAL, BLL, BOL and UI but I have been experimenting with Entity Framework 4 and WCF Data Services and managed to get something in place where I was using WCF as a gateway to EF4.
i.e. Adding a Service Reference to my project and then using the EF4 context and writing LINQ queries against the DB
e.g.[Code]....
Now with the current setup I would still need to write a DAL Class Library, that interacts with the Data Service, because as I said WCF Data Services only seems to be a gateway, I can't see where to put the code (above) in the Data Service and then how I could these methods.
My questions are: 1. How do I develop a WCF Data Service in such a way to allow this behaviour - I know how I could do it using ASMX web service, something like [Code]....
2. If I am to use WCF Data Services, how is serialization handled (if at all) - again I know how to do something in ASMX web services
3. Again, If I am to use WCF, how do I add Security and only allow my applications to access the web service - for obvious reasons
4. Would it be possible / logical to also include the Business Logic Layer into the web service?
I have a couple of web applications which all utilize sending emails whether it be by contact form, or some kind of notification updates etc. The problem I have found is that there isn't really any way to track the emails which are being sent from the web applications, so I've come up with a possible solution: It's pretty straight forward really - instead of having each web application sending the emails themselves I would like to unify the process by creating a central Email Sender Service.
In basic terms, each application would just create a row in a 'Outbound Emails' table on the database with To,From,Subject,Content data. The Email Sender Service (Win Service) would then pick the emails from the outbox, send them and then mark as sent.
Even though I would store 'basic email' information (to,from,subject,content) in the database, what I would really like to do is also store the 'MailMessage' object itself so that the Email Sender Service could then de-serialize the original MailMessage as this would allow any application to fully customize the email. Are there any problems with using the MailMessage object in this way? Update: Another objective, is to store a log of emails that have been sent - hence the reason for using a database.
My company is currently looking into bringing a new piece of third party software in for online ordering. The software does not handle pricing so they are requesting the pricing information from a web service. Their software is passing an XML file as a parameter, and expecting an XML file as a response. I would think that returning an XML file would be pretty straight forward, but I cannot think of a way to receive an XML file as a parameter.
I am currently writing a C# web service which has several methods, one of which has to receive HTTP POST requests. The first thing i have done is alter the web.config file in the web service project as below.
[code]....
But when i run this i get "The remote server returned an error: (500) Internal Server Error". If i remove the parameter, by removing the stringbuilder and byte code, as well as having no parameter in the web service, it works. So it is obviously a problem with the parameters. I actually want to send more data, and was using a string[] parameter in the web service, but this also failed.
i want to create a centralised business or Service authendication architecture in .net. for example, we have a clients like c1, c2, c3, c4, ... etc. everybody logins seperatly as well as grouply. ie, if client "C1" logins [with login authentication] he can access c2 , c3, c4 also without login authendication. So its like a google. if we enters gmail account, we can access orkut, picasa like that.. i need the cetralised architecture.
And, client "c1" seperately asks seperately how will be the authendication architecture.
so give me the single solution for both these two scenarios. how will be the architecture for these two and how is the Data Base (Login) Structure.
I am trying to submit my form's data to database using asmx Web Service method(Through AJAX extension methods i.e., Script callback method). My form contains lot of data, though only text data.This will be a very fast process,Or should i submit form data in the traditional way ?
I want to access membership and profile objects and wants to access profile properties that I have defined in my web app web.config file, from a windows service. I have used this code
foreach (MembershipUser user in Membership.GetAllUsers()) { ProfileCommon userProfile = profile.GetProfile(user.UserName); }
But its giving the followin errors The type or namespace name "ProfileCommon" could not found (are you missing a using directive or an assembly reference?) The type or namespace name "MembershipUser" Could not found (are you missing a using directive or an assembly reference?)
I am going to create the SAAS (Software as a service) Application. Can you please provide all the attributes that we have to consider in SAAS application (for example usability, pluggable architecture etc .. )
How architecture should be build for this project, provide sample architecture for SAAS application. This architecture should be easy to upload and upgrade or degrade the features. Error handling should be easy.
I am try to create architecture design for WCF service.
We have WCF service that we have to expose to third party so then can request with xml and get back xml response.
The wcf service should do the following:
- Accept the request call with xml
- Check xml against the schema
- Parse the xml
- Authenticate the incoming xml by username and password that will be in xml
- Send back the response
If anybody can let me know what kind of design I can use or is there any pattern available that I can take it and then extend it as per my requirement.
My web service needs to open some files located on a remote computer.
From Windows I can do the authentication so I can see those files using the File Explorer.
If I try to open the files from my Web Service while it's running using Visual Studio (ASP.NET Development Server) it also works.
However, if I do everything from IIS it doesn't.In order to find out where is the problem what I did was to run a network sniffer and I found out that when using IIS, the system will try to use the account 'ASPNET' to login into those remote computers which will obviously fail.
However this doesn't happen if I run from the IDE (Using the ASP.NET Development Server)I found out that if I use Impersonation for accessing this it will work, the problem is I need to have the same account names on the computer running IIS so I would rather not to do that.
Why is it working from the ASP.NET Development Server and not from IIS? Is there a way to give full access to the ASPNET account?
We have two application created one for webservice and other application will call the methoddefined in webservice .The problem is we want to add webservice in our application dynamically
I need to call remote web services for example [URL]. So how to do it? I watched all asp.net video about web servies but in all videos they speaking just about local web services,
I'm using asmx web service to lock a folder on remote computer!
When I run web service on local machine everything working fine, but when I run it on remote computer nothing happen, folder on remote computer stay unlock!
I supose that I need to set security permission for this web service on remote computer, but i don't know where! So, what I need to enable executing this service on remote computer?
I have installed a web service in a client machine, its accessing a mapped network drive from a remote machine. But when its trying to read files from that file I'm getting this error
Code:
Message: Authentication failed Description: QBWC1012: Authentication failed due to following error message. System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.IO.IOException: Logon failure: unknown user name or bad password. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.Directory.InternalGetFileDirectoryNames(String path, String userPathOriginal, String searchPattern, Boolean includeFiles, Boolean includeDirs, SearchOption searchOption) at System.IO.Directory.GetFiles(String path, String searchPattern, SearchOption searchOption) at System.IO.Directory.GetFiles(String path, String searchPattern) at WCWebService.WCWebService.authenticate(String strUserName, String strPassword) in C:inetpubwwwrootinvoicecreatews codeinvoicecreatewsWCWebService.asmx.cs:line 463 --- End of inner exception stack trace --- See QWCLog for more details. Remember to turn logging on.
I have supplied user crendentials also, the same web service working in another machine with the same mapped drive with the same user credentials. Manually I can map the drive using the credentials which I'm passing thru the application.
I have a asp.net web app and a windows service running on separate machines. How can i enable the windows service subscribe/listen to events raised by the asp.net app on the remote machine? What methods can i use?n example of events that can be raised on the asp.net app is a user uploading a file. Once the upload has completed the windows service should be notified so it can do some work. It seems that there needs to be a layer in between asp.net and windows service, possibly another windows service or WCF app? Or plain old polling through a shared database containing the state?
when I call the web service from the windows service. But I can visit this web service through IE and I also wrote another console application to call the web service and it works fine, too.
The exception infomation is below:
A socket operation was attempted to an unreachable network 127.0.0.1:8888
I try many methods, like turn off the firewall and anti-virus software, set the web services proxy property to null. but still cannot solve this issue.
Yesterday I added a custom MembershipProvider to an ASP.NET web application, but when I deployed the application to its remote host server, it failed. I know I had the login info correct, and I also know that for nearly any exception in the login process, the Login control displays the standard error message, "Your login failed", so I assume something is wrong in the code/config.
What can I do to diagnose what is wrong on the server?
BTW: This weekend I only have FTP access to the server, so no event log, and CustomErrors is already set to Off.
THE END: I was an idiot, and using the wrong query window to check if the my login actually existed on the server.
I have an Asp.net 3.5 xml web service that I created using the file new website within Visual Studio 2008. I can install and run the web service on a remote server using a web setup project after adding the necessary entries to the web.config file. The problem currently is that the xml web service needs to be configured to use a domain name and not a server name. My coworker has not been able to configure the virtual directory to use a domain name and work successfully. The web service returns a site under construction error.
