d-fens GmbH
Audit and Consulting of Information Systems and Business Processes
I am a senior auditor, consultant and architect at d-fens for business processes and information systems.
Following the very cool series of ODATA articles on the ASP.NET site by Mike Wasson you will see that it is possible to define actions not only on entities directly, but also (unbound) on entity sets and the service root itself. While it is fairly straightforward to implement entity set action (the same as an entity action but without the […]
I recently wrote on how you can call ODATA actions via PowerShell. However, sometimes these actions return entity types that you cannot resolve easily in PowerShell. Normally you would resort to “Execute()”, but this is neither easily doable in PowerShell. But as most usual there is another way around this. Instead of using “Execute()” to retrieve the data you rely […]
This is a quick addition to my previous blog post on how to receive SignalR messages via PowerShell. Once you have established a connection in PowerShell to your SignalR hub you can easily them a message to the server via the ‘Invoke()’ method on the IHubProxy object. In it you specify the name of the method you want to call […]
A couple of days ago I wrote about how to use RabbitMQ with AMQP from PowerShell (via a small assembly that utilized the original C# .NET Client). After I implemented it in the use case for our customer I somehow felt it to be “too heavy” for what I was really using it (compared to all the features AMQP has to […]
I was working on a project where I needed a pool of PowerShell workers that were distributed across several nodes and should be served by a central dispatcher. So why not give AMQP with RabbitMQ a try? The setup was very easy thanks to the documentation. And besides plenty of .NET library wrappers around “Rabbit.MQ.Client.dll” there were even two PowerShell […]
A quick follow up on my last post regarding TFS and PowerShell. I found it quite amazing that is so little documented and relatively difficult to download a file from TFS to your local machine. I would have expected that the supplied Cmdlets in the TFS Power Tools snapin will just handle that for you, as I find the requirement […]
Today I was playing with TFS Power Tools to check in some PowerShell scripts where I ran into a strange error. Obviously I wanted to use the PowerShell Cmdlets for that you can select via the ‘Custom’ option in the ‘Power Tools’ installer … For a quick intro on TFS via PowerShell you can have a look at PowerShell and […]
Have you ever tried to use ODATA Actions from PowerShell and realized that the Service Reference in your class library does not expose them? You can actually do it via the model’s ‘Execute()’ method. Here is a quick description on how to do it without writing too much URL style code. Let’s presume we have a model referenced in a […]
When working with ODATA sources from PowerShell via a service reference (instead of using explicit REST call via Invoke-RestMethod) the .NET DataServiceClient will use Atom/XML under the hood. This works perfectly well except it consumes much more bandwidth because of the XML data format. As the whole ODATA interface is encapsulated via your service reference it really does not make […]
I just came across another nuisance in .NET WebAPI that I want to share with you quickly. In one of our LightSwitch projects we use WebAPI ODATA controller to help out when LightSwitch internal capabilities come to their end. As we are using a PowerShell once in a while as you might already have guessed from our web site we […]
In this post I quickly describe how you can use the select2 plugin with LightSwitch HTML client and present data from ODATA sources via jaydata. LightSwitch has builtin capabilities for selecting related entities via the ‘Modal Data Picker’ control. You can also have drop down or choice lists with static data, however they lack the convenient search and filter mechanisms […]
It might sound old school and the JIRA SOAP service is announced to be removed with version 7 (https://developer.atlassian.com/display/JIRADEV/Preparing+for+JIRA+6.0#PreparingforJIRA6.0-SOAPandXML-RPCdeprecatedinJIRA6.0) but the JIRA SOAP protocol is really easy to use from PowerShell as of the nifty ‘New-WebServiceProxy’ Cmdlet that abstract the SOAP protocol behind typed .Net objects. So whenever you want to do a quick upload of a screenshot or get […]
When you try to add an assembly that you downloaded from a network share or the internet to your PowerShell session via ‘Add-Type -Path C:\folder\your-assembly-name.dll’ you might a receive an error like this: The result itself could give you a hint and querying the inter you will probably others experiencing the same error as described in Visual Studio Project Sample […]
[UPDATE] 2014-11-28 Jerther sent me a comment (see below) on how he solved this issue! So how did he do it? The short answer is, that you have to include special registration code inside the ‘Application_Start()’ and other places where the order on how you code it plays a crucial role. Check out his post ASP.Net: Web API 2 + […]
When trying to add the current “Microsoft.AspNet.WebApi.OData” to a LightSwitch project I got the following error message: We are not using Silverlight in our application, only the HTML client – except when doing user and role administration … As a matter of fact we only need the package on the server layer anyway. So the solution to this is to […]
This will be a quick post about WebAPI and ODATA controllers, and a strange “bug” or behaviour I found. I was not aware of this, so maybe it is also of some interest for you. When you create an ODATA service via WebAPI and want to connect two or more entity sets via a relation the standard example will tell […]
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