I am having troubles hosting the blazor wasm asp.net core hosted application.. The solution has 3 projects: Client, Shared, and Server.
when I run the command dotnet publish --configuration Release it publishes the libraries to their respective folders in solution like this:
WebWorkbench3\Client\bin\Release\net5.0\publish
WebWorkbench3\Server\bin\Release\net5.0\publish
...
I would assume that since the server project is referencing a client - then my steps to host the application are following:
Open WebWorkbench3\Server\bin\Release\net5.0\publish in powershell
Run command dotnet .\WebWorkbench3.Server.dll
Navigate to: https://localhost:5001/
Result:
Expected: client page opened
Actual: page is stuck at "Loading.." string. In the console we see that there was an error about _framework/blazor.webassembly.js not being loaded.
If we were to check the wwwroot folder contents in the server app we will see the following:
So this explains why the error is shown. However my question at this point - should the publishing process/configuration in project take care of copying client's wwwroot contents into the the server's app output directory? If we start a debugging session in the VisualStudio, then we use the server as the startup point, so the project should have some idea where to look up the blazor.webassembly.js file at..
So why doesn't the same process occurs during the publishing?
Note: I was able to fix the issue by manually copying the client's wwwroot directory and by placing the contents into the server's wwwroot directory... But I don't think that is is how serving is supposed to work?
EDIT: I have just tried to set-up the client blazor application in IIS. And it works. Kind of. The page is opened. But then when it tries to make a REST GET request to the server - it uses the same hostname:port combination. So if my app is hosted on mysite.local:50001 then the request to API will look like mysite.local:50001/data/loadall where data is the controller name and loadall is the action name.. So basically the client uses the same base address as the server.. The problem, is that I cannot start the server on the same port as the client! In attempt in doing so - you will see following output:
So basically I have the same question as before - how to host the wasm application that is split between client and the server? I am pretty sure that I can make it work by forcing the client to use the non-standard server port and serving the server part on that port.. However, I believe there should be a reason why current configuration (default configuration in the blazor wasm template) is configured in this way so it should be possible to run the project somehow without any additional changes at all..
Well this will be a self-answer.. Instead of publishing (dotnet publish --configuration Release) the application on solution level - do the publishing on project level..
before ..\repos\WebWorkbench3\WebWorkbench3
after ..\repos\WebWorkbench3\WebWorkbench3\Server
In 1 case the compiler does not copy the _framework folder (and possibly some other files) into the wwwroot.. Once you have published the Server correctly you can access the app by serving it with dotnet .\WebWorkbench3.Server.dll command.
Having the samie issue as explained above:
Before:
The solution file
had the same name
was in the same folder
as the server project
Resolved
I moved the solution to the project root (one level up).
Now, dotnet publish within the server project produced the __framework folder + content as expected.
Related
I'm using PSPDFKit SDK and I'm trying to load it within my page. It loads just fine locally, but when it comes to stage I'm getting this error:
Error: Error loading https://***.com/mcclubone/_ATF/Inc/PSPDFKit/pspdfkit-lib/pspdfkit-bb2d75a643cc7546.wasm: Not Found at 500d608b-a6cc-4154-b84a-5d35a6e80ca9:12:135914".
It looks like stage's IIS can't serve WebAssembly modules, but I did add that 'application/wasm' type to MIME types in IIS config what should make it work and it doesn't happen. I've compared both (local and stage) environments and their confings are the same. The only difference is that locally I'm using IIS for Windows 10 and on stage it's IIS for Windows Server 2012.
I think this issue is related to serving .wasm files and not specifically to PSPDFKit.
Can anybody suggest something to solve that painful problem?
This has been solved. Due to the fact that we have a complex network hierarchy and structure, the folder was copied incorrectly, hence IIS couldn't find the file that was being requested.
I am looking to move some .NET Core applications into production and with the old .NET framework you could update the compiled DLL's for the application's code at any point.
The next time the application pool recycled, you would get your new code - or you could recycle the app pool manually.
With .NET Core, it appears that the running application locks the DLL and it cannot be overwritten until either the process is closed through inactivity, or is ended via Task Manager (Window's server here).
Is the a preferred method to publish a new version without having to set a maintenance window for all the users? This is on a Windows 2012 R2 server running the .NET Core framework via IIS 8 and the App Pool having no managed code.
For ASP.NET Core hosted with Kestrel runs in separate process and IIS works like Reverse Proxy. So there is not way for DLL release unless you implement it you your application.
Set up a hosting environment for ASP.NET Core on Windows with IIS, and deploy to it section Deploy the application, item 4.
If you want to avoid downtime simply setup two websites on IIS with same set of settings, make an update on second website, put first down, and start second.
I think the simplest way is to copy all files into a fresh folder and changing the physical path of the web site.
For example, you have all web sites under C:\WebSites, you also have a subfolder for each web site such as C:\WebSites\MyWebSite and a subfolder for each version, such as C:\WebSites\MyWebSite\V01.00.
To deploy a new version V01.01, create a new subfolder C:\WebSites\MyWebSite\V01.01 copy all files to that folder and change the physical path of the web site.
You can easily change the physical path with PowerShell:
Import-Module WebAdministration
Set-ItemProperty -Path "IIS:\Sites\MyWebSite" -name "physicalPath" -value "C:\WebSites\MyWebSite\V01.01"
This is a form of "hot publishing". Additionally you can easily roll back to the previous version if something goes wrong.
Another alternative is to use symbolic links, for example C:\WebSites\MyWebSite may point to C:\WebSiteVersions\MyWebSite\V01.00. To deploy a new version, copy all files to C:\WebSiteVersions\MyWebSite\V01.01 then change the symbolic link so that C:\WebSites\MyWebSite points to C:\WebSiteVersions\MyWebSite\V01.01, and finally recycle the application pool. Click here to see code for doing that
There is also another option called "blue green deployment" strategy. This strategy requires configuring a single server web farm and two web sites. Please see this article for a complete description.
I have been trying to set up some tests for a web api 2 project that I am working on. I have tried both of the methods in the following article with some success.
http://blogs.msdn.com/b/webdev/archive/2013/11/26/unit-testing-owin-applications-using-testserver.aspx
I hit problems because there are configuration settings in the web.config file that seem to be completely ignored using either of these methods. For instance, the database connection strings and other application settings are ignored.
When I run OwinHost.exe from the root directory of my Web Api project everything works more or less as expected, honouring the settings in web.config.
How do I get the WebApp.Start or TestServer.Create methods to reference the web.config file in the Web API project?
Is there another way to do this that I am missing?
I've built and compiled my WCF client to run successfully. I've found that as long as these two files are together, my client will run anywhere on my computer:
Client.exe
Client.exe.config
When I move these files to another computer, there's an error:
System.InvalidOperationException: Could not find default endpoint element that
references contract 'Service.IService' in the ServiceModel client configuration
section. This might be because no configuration file was found for your
application, or because no endpoint element matching this contract could be
found in the client element.
I've already made sure that the service URL is accessible from the intended host of the computer.
After looking up the issue, seems like a solution is to copy the config retrieved from executing:
svcutil http://host/Service.svc
to the application configuration file. However, the config info is already in the App.config file when I built the project.
Do I need to recompile/build on every client machine that intends to use the WCF web service?
I seem to have resolved this by copying over the entire compiled folder:
Client.exe
Client.config.exe
Client.pdb
Client.vshost.exe
Client.vshost.exe.config
I don't have the time to go back and forth to see which subset of files are core or whether all these files are necessary, but hopefully someone can follow up with an answer to that.
I have a very simple ASP.NET MVC 4.0 website. It's got a single controller ("HomeController") with a single action ("Index") which receives a single parameter ("string id"). I have not modified the global.asax file since this kind of route is handled by default. I have not created a view for this action since the action will simply be "sending" the user a file (a PDF). If I run the site from within Visual Studio (using a default page of "home/index/3" in project properties), the page runs fine. If, however, I publish the site to our test server (https://ourserver.com/mysite/home/index/3), I get a 404--File or Directory not found.
NOTE: We're running IIS7.5 on this server.
UPDATE: The bin dir (and the appropriate DLL, i.e., one named after the project) and the web.config file are there.
So, why is this not working?
If you're using an older version of IIS and haven't installed the MVC server extensions which give you routing, you can do a BIN deployment of the necessary infrastructure files.
Edit: If you're running IIS 7.5 you should have everything you need. You mention you don't see a web.config file or any dlls - how did you publish? You should absolutely have a web.config at the root of the publish directory and a bin folder with your dll(s).
If you right-click on your web project and do Publish, you can publish to a local directory. It'll be exactly what you should see when deployed.
Edit 2: Did you check that it's configured in IIS as a web application and not just a site?