Category Archives: Programming

Everything about software development, architecture, etc.

How to call LINQ extension methods such as Where and ToDictionary using PowerShell

If you have IEnumerable<XElement> and want to call various LINQ extension methods such as Enumerable.Where() or ​​Enumerable.ToDictionary() on it using PowerShell then first load the necessary assemblies: And here’s the code for Where(): and for ToDctionary():

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The BuildLayout of the application is invalid. Code is missing for service

If you’re getting these very rare but still mysterious errors: Started executing script ‘Deploy-FabricApplication.ps1’. Test-ServiceFabricApplicationPackage : The BuildLayout of the application in c:\Temp\TestApplicationPackage_3811564851592\icw0q1rk.bus\Release is invalid. Code is missing for service MyWebApiPkg. or Register-ServiceFabricApplicationType : The BuildLayout of the application in … Continue reading

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How to reuse lambda parameter across multiple combined expressions

If you’re having multiple separately defined expressions having common lambda parameter like these: And trying to combine them into one and to reuse the said parameter like this: Then you’ll likely get an exception: Unhandled Exception: System.InvalidOperationException: variable ‘u’ of … Continue reading

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Durable queue in Azure Service Fabric using WebJobs, Part 2: Web API

This the second post in a series about Durable queue in Azure Service Fabric using WebJobs: Part 1: Introduction to Asynchronous Operations Part 2: Web API Now let’s create another stateless service which will host the Web API. I used … Continue reading

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Durable queue in Azure Service Fabric using WebJobs, Part 1: Introduction to Asynchronous Operations

This the first post in a series about Durable queue in Azure Service Fabric using WebJobs: Part 1: Introduction to Asynchronous Operations Part 2: Web API The built-in into Azure Service Fabric (shortly ASF, or just SF) actor model and … Continue reading

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Documentation as a Feature, Documentation is a Feature

TL;DR: documentation should be treated, i.e. planned, estimated and maintained, as any other functional part of a project. I don’t always write documentation but when I do, I believe it’s more important it to be up-to-date than to exist. That … Continue reading

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How to move data from SQL Server to ADLA table using ADF

In Universal Store Team, the Universal Payout Platform – Earnings Calculations project, we need to move data from on-prem SQL Server, as well as SQL Server within an Azure vnet and SQL Azure, to the Cloud. As our storage in … Continue reading

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How to deploy Azure Data Factory pipeline and its dependencies programatically using PowerShell

Since ADF doesn’t provide a built-in way for automated deployment, in order to do this you have to write a custom script. Then you can run it on build server such as VSTS or TeamCity. If you’re in the interactive … Continue reading

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How to enable tracing in ASP.NET Web API using Application Insights

Excert Continue reading

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The ObjectContext instance has been disposed and can no longer be used for operations that require a connection

TL;DR: Don’t return task before disposing context, await it instead If you’re getting an Entity Framework exception: System.ObjectDisposedException: The ObjectContext instance has been disposed and can no longer be used for operations that require a connection at System.Data.Entity.Core.Objects.ObjectContext.ReleaseConnection() at System.Data.Entity.Core.Objects.ObjectContext.d__3d`1.MoveNext() … Continue reading

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