dotNet

When sending a cancellation request to a method that returns a value, you must return a value or throw an exception. Here is how to throw the exception.

Here is an example of using a cancellation token to stop the execution of a method.

After you save an entity, you may want to send out a notification so other parts of your application can react to the change. This post shows how to do that with MediatR and Entity Framework Core.

See how to use AWS Step Functions to control the flow of a series of Lambda functions. In this example, the Lambda functions execute quickly, return a result, and trigger the next step.

.NET Lambda functions can be triggered when messages arrive in an SQS queue. There are a few steps to set this up, read on to see how.

Find/FindAsync is a popular way to retrieve a single entity using its primary key with Entity Framework, but by default Entity Framework tracks that entity for changes. This post shows how to turn off tracking for Find/FindAsync.

Here is a way to access objects just after they are saved by Entity Framework and have had a primary key assigned to them.

I left out version number in a package reference and got the exception - Exception has occurred: CLR/System.MissingMethodException An exception of type ‘System.MissingMethodException’ occurred in System.Collections.Concurrent.dll but was not handled in user code: ‘Method not found: ‘System.IServiceProvider.

A puzzle - create the smallest minimal Web API in .NET. It has to return valid JSON. Mine is 54 characters.

It took me a little while to figure this out, so I thought I’d share.