![]() ![]() Note: There is no special configuration or setup required to enable a shared app domain. The sample code for this one is pretty lengthy, so head over to the Github repo to view the full example. Call static methods on types defined in your hosting application.Instantiate class object instances in the script (for types defined in your hosting application).Send real (not serialized) class object instances defined in your hosting application as parameters into a script.NET app domain as your calling application, you can do the following: Since a hosted PowerShell runspace lives in the same. One final example I created explores the shared. / Contains functionality for executing PowerShell scripts. This is helpful if we need to monitor things other than pipeline output, like Write-Host/Write-Information. We also watch for three of the other output streams (warning, error, and information). It also allows us to import modules for each runspace used, configure thread re-use options, or specify remote connection settings. Maintaining a runspace pool is helpful for multithreading scenarios where you need to run many scripts at the same time and have control over the throttle settings. In this example we initialize and use a RunspacePool. That way the next cmdlet in the chain can just watch the Output stream and ignore the other streams. In order to differentiate between pipeline objects and other output (errors, warnings, traces, etc), PowerShell writes objects to the different streams (or pipes) for these different types of data. Sidebar: What are PowerShell streams? PowerShell uses Piping (|) to pass objects from one cmdlet to another. However if you need to handle additional stream output (warnings, non-terminating errors, etc), or if you need to execute many scripts simultaneously, this example will demonstrate those usage patterns. The previous example works fine in many simple hosted script scenarios. print the resulting pipeline objects to the console.Ĭonsole.WriteLine(()) Var pipelineObjects = await ps.InvokeAsync().ConfigureAwait(false) execute the script and await the result. specify the parameters to pass into the script. Using (PowerShell ps = PowerShell.Create()) wrap in a using statement to ensure resources are cleaned up. create a new hosted PowerShell instance using the default runspace. Public async Task RunScript(string scriptContents, Dictionary scriptParameters) / A dictionary of parameter names and parameter values. / Runs a PowerShell script with parameters and prints the resulting pipeline objects to the console output. ![]() This is the foundation step for all three of the example scenarios below. NET Core 3.1 with version 6.2.4 of the PowerShell SDK. Then add a package reference to the PowerShell SDK. Full sample codeĬomplete example code for everything in this post can be found on Github at this repository: Project setup Including topics like project setup, runspace usage examples, stream handling, shared app domain use cases, and some helpful troubleshooting tips. In this article we will jump forward to take a look at runspace execution for PowerShell Core and. NET Core and PowerShell Core, better async support, and a few new best practices. A few things have changed since that post including the introduction of. I wrote an MSDN blog post a few years back ( here) that demonstrated how to run PowerShell scripts by hosting the PowerShell runtime inside a C# /. ![]()
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