i am new in wcf and started learning. i got one confusion like that i create a small wcf service and just do not host it in IIS,console apps or win service but from another apps i can add the service reference of svc file and found it is working. if wcf can work without hosting in any place like "IIS,console apps or win service " then why people would alway host wcf service in IIS,console apps or win service. can anyone tell me the reason.
people use IIS and windows services in general because they are simpler to setup and run more consistently. they can also be hosted more easily on servers where the services can be configured to start automatically, and as usually wcf is used as a server communication method it is usually this that you want to do.
hosting in console applications is generally easier to setup for simple examples for testing purposes, when you want to test your services locally.
Whilst hosting in applications as possible it's a less common scenario to use wcf to communicate between 2 applications on the same machine.
EDIT:
Your original question asked why people always talk about IIS, services etc. The point I was making was that usually wcf is used for web services, and is usually run on a server other than the local machine. Even though it can be used for inter process communication on the same machine this is not the most common use case. This is why you see a lot of examples using IIS and not too many hosting it in a Windows forms app.
Related
I am trying to come up with a way to accomplish something but haven't been able to find what I am looking for yet.
4 Developers
1 Development webserver
1 Development WCF server
We each have our own website for testing/debugging on the one server using IIS6. We each have our own port number that distinguishes what site we are connecting to.
When our websites make a request for the WCF server the hosts file on our dev webserver points it at our dev WCF server. Likewise, the production webserver's hosts file points it at our production WCF server. This way we never have to worry about changing the Address of our service references in Visual Studio.
Recently we have a need for multiple developers to be working on multiple branches of the WCF code at the same time. Currently we have to take turns using the WCF server.
We want the ability to have our individual websites on the dev webserver point at individual WCF websites on our dev WCF server.
I have tried several ways I thought of but they all require us to update the Address in the service reference in Visual Studio. (currently if we update/add a service call we point our local machine's host file at the dev site after the new WCF code has been deployed to it.)
Does anyone have any idea, or a direction of where I can find common configurations for this type of thing? I have to assume that Microsoft has a best practices setup for multiple developers with multiple dev environments for websites and WCF sites.
Requirements of the setup:
We only get a single webserver for website testing.
We only get a single webserver for WCF testing.
We need a solution that doesn't require us to update the Address in the service reference in Visual Studio when developing on the WCF code.
If worse comes to worse we may have to think about changing the requirements.
Thank you in advance!
You can simply change the address of the service in configuration file for each deployment. You don't need to change the address of service reference until the service has changed in the way that would produce different client proxy code.
My head hurts so much I think I need a bottle of aspirin...
I've created a WCF service and, with help of others from this site and the department I work in, the WCF service is running as a service on my development machine. Tested it with a console app and it works.
But, it's not supposed to be on my development machine. It needs to be on a different server.
This is difficult because the server it is supposed to reside on DOES NOT have Visual Studio installed on it.
So I cannot run the VS 2008 Command Prompt with installutil to run the WCF service as a service on that server.
Broadly speaking, you've got three options, all of which are described on MSDN:
Host the service under IIS
Self-host the service in any managed .NET application
Host the WCF service under a Windows Service
Which one is right for you depends on what your service is for, how it'll be consumed, how scalable and secure you need the set-up to be, and a dozen other things besides. Without knowing a bit more about what your service does and how it'll be used in your organisation, it's difficult to make a recommendation.
IIS hosting is easy to set up and is the way to go if you want to leverage all of the industrial-strength hosting functionality that a full-blown web server offers.
Self-hosting is quick and easy - you can knock out a WCF-hosting console app in two minutes flat - but is the clunky solution. You of course have to run the host application as a particular Windows user. Perhaps not ideal?
Hosting under a Windows service is the middle ground. It gives you that always-available functionality without having to be logged in as a specific user, but doesn't offer the configurability and scalability of the IIS solution. It takes a bit more effort than belting out a quick console app, but not much.
The server that the windows service will reside on will have the .NET Framework. INSTALLUTIL is located in the Microsoft.NET\Framework(version number) folder in the Windows directory.
For example, C:\Windows\Microsoft.NET\Framework\v2.0.50727.
No need to write a console app to host your service now (unless you want to).
You can also host your WCF service under IIS, check this out: MSDN - How to: Host a WCF Service in IIS. It really is just a five minute job :)
I have a web site and build a wcf service in it. I can run the code by calling it from a test page in the web site. The web site is ran by the vs2010 development server.
I do have IIS 7 but never use it.
Now I want to use the NetTcpBinding instead of BasicHttpBinding, everyone says it should be enabled in IIS, but how can this be done without using IIS and keeping everything in 1 project?
Thanks for any help
edit: A Windows service would be a solution, but that would mean adding a project to the solution, I really want to keep everything in 1 website, took me quite some time to get the service in the website in the first place.
This is about my own test version of the website, the production server is out of my reach. The service must be expanded by other developers later on it's bad if they have to run IIS just to test the service.
One way is to host the WCF service in a Windows Service - see How to: Host WCF in a Windows Service Using TCP for sample code.
Are you talking about how to develop without using IIS7 or how to put the service into a production environment without IIS7?
If it's the latter, then Stuart's answer is correct, but otherwise I would suggest that you start to develop using the web server that you will eventually be hosting the web site/service on.
Hosting in IIS7 has several advantages over hosting in a Windows Service such as fault tolerance and process isolation already built in.
Thanks for the replies guys, it looks like I have 3 options:
1. Host the service in a seperate project.
2. Host the website in IIS.
3. Use HTTPS, also secure.
PS: My development environment is very different from production :(
In development I have unit testing and in production there are old ASP pages, that I can't even acces, but sometimes must refer to...
I need to remotely spawn WCF services on a remote machine from a client. I cannot use IIS (no HTTP) or WAS (no Windows Server 2008).
Was wondering if there's a way to do it apart from these hosting environments without having to create a service on the remote machine responsible for the spawning of other WCF services.
If a Windows Service host is the only way, can someone point me to a good article or book for an efficient architecture for doing this (including lifecycle management of spawned WCF services).
Thanks
Riko
If you cannot use IIS/WAS, then you're only option left is self-hosting.
You can host your WCF service in either a Windows (NT) Service, or a console app, or any other app you like to have.
The point though is: other than IIS/WAS which will load your service class as needed, when a request comes in and needs to be processed, in a self-hosting environment, you have to have your host app up and running - that's why a NT Service seems like the best choice at least for production environments, a service that can be run even if no one is logged on to the machine. Console or other apps require a user being logged on, and the app must be running.
Hope this helps a bit.
Marc
There is one additional option you can use on Server 2003 - hosting WCF services in COM+:
http://msdn.microsoft.com/en-us/library/bb735856.aspx
This is not as easy as hosting non-HTTP services in WAS on Server 2008, but provides a better supported monitoring and deployment model than hosting as an NT Service. Generally in my experience, though, most people I know have used NT services since is fairly straightforward to generate one in .NET, and then they perf counters or something similar to monitor them in production.
Kindly help me in architecting a solution which is required for my ongoing project.
I have developed some WCF Services hosted as windows services which I did and working fine so far. Now I am asked to develop a master WCF type of service which should be intelligent enough to manage all other WCF service for possible corruption/errors and can repair them and restart.
Thanks in advance.
As we have written a custom host and took us years to make it a real application server, I will share some of the challenges that we had. Creating a custom host that manages WCF services as an NT service is a very challenging task if you want to manage all of the details and treat the NT service as a real service host. The challenges start from managing multiple Appdomains ( one for each Service ), managing the statuses of the services, startup times, deployments from the IDE and the worst of all is activation. Have you considered how to implement that? If you do not have this feature, it means that all of your services will be active and in memory at all times. IIS and Appfabric do that very well and trust me , it is noty easy to implement. The other part that was challenging was a UI to manage this host and offcourse a UI that can manage multiple hosts ( NT services running on different boxes ). Do you need a discovery proxy implementation? And at last how about if you want to manage services running in your custom host , IIS and App fabric the same way?
Think about before doing such an implementation because the scope may crypt on you as you do it.
I do something similar here.
Create a Dictionary<key, ApplicationDomain> collection into your main program
Key: something unique for each application domain, like a Guid or a System.Type.
That ApplicationDomain class exposes a internal property to access your AppDomain proxy (that which inherits a MarshallByRef class)
Load your WCF host into main program, so you'll get access to that collection
Every time your service get some access, you just need to take that key, access your proxy and do anything you want within your service hoster.
Keypoint: Your service must have access to all your service hosts.