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Q&A

Welcome to Software Development on Codidact!

Will you help us build our independent community of developers helping developers? We're small and trying to grow. We welcome questions about all aspects of software development, from design to code to QA and more. Got questions? Got answers? Got code you'd like someone to review? Please join us.

Posts tagged asp.net-core

Subtag of .net · 4 child tags

Use for questions about ASP.NET Core framework. ASP.NET Core is a lean, composable, open-source, and cross-platform framework for building web and cloud applications.

Since there are important changes between major versions, consider adding a specific major version tag (e.g. asp.net-core-3.1)

This tag doesn't have a detailed wiki yet.

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Q&A How to start creating a Giraffe web project and how to serve it?

Having some trouble with giraffe-template on Mac M1, so decided to set up a Giraffe project manually. Started following the Doing it manually section of the Giraffe README, but got stuck right away...

1 answer  ·  posted 20d ago by toraritte‭  ·  last activity 20d ago by toraritte‭

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Code Reviews Time measurement in an ASP.NET Core application

My team introduces lots of time measurements for various code sections that might take longer than expected in a real-life flow. These rely on initializing a StopWatch, getting the elapsed time an...

0 answers  ·  posted 1mo ago by Alexei‭

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Q&A Can Swashbuckle.AspNetCore generate exclusiveMinimum validation?

Is there a way to make Swashbuckle.AspNetCore generate a Swagger exclusiveMinimum range validation for a model property? There doesn't seem to be any way to do this with the attributes recognized ...

1 answer  ·  posted 2mo ago by Kevin Krumwiede‭  ·  last activity 2mo ago by Kevin Krumwiede‭

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Code Reviews Health checks with caching in ASP.NET Core

Context I noticed that an application was flooding the database with simple SELECTs. The investigation revealed some bugs in the health check which theoretically implemented caching (to avoid quer...

1 answer  ·  posted 1y ago by Alexei‭  ·  edited 1y ago by Alexei‭

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Q&A How to define Polly policies when working with Refit library in ASP.NET Core?

Note: this is based on my question on SO and subsequent activity there I am trying to add resilience using Polly to HTTP calls that are performed using Refit library. I am using the Refit factory...

1 answer  ·  posted 1y ago by Alexei‭  ·  last activity 1y ago by Alexei‭

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Q&A How to migrate NLog configuration from XML file(s) to application settings (JSON)?

I have just created an ASP.NET Core 6 application and added NLog support for logging: NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger() However, this API is almost deprecated as ...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Alexei‭

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Code Reviews Measuring the impact of using exceptions instead of return values in an ASP.NET Core application

Context This Q&A from SO suggests that throwing exceptions is incredibly expensive when compared to returning values (return codes): that with return codes instead of exceptions the same pr...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Dirk Herrmann‭

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Q&A Mapping generic handler to generic query in MediatR

I am using MediatR in an ASP.NET Core 3.1 application and I want use a generic query and a generic request that deals with getting lists of some standard items I am using in drop-downs and similar:...

0 answers  ·  posted 3y ago by Alexei‭  ·  edited 2y ago by Alexei‭

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Q&A Preloading some data at application startup as fast as possible

I am caching some very static information (changes once per day) in my ASP.NET Core application. This is normally done when needed ("lazy"). One such cache item is a 50K list of items that are tak...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Alexei‭

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Q&A How to create fire and forget tasks Q&A in ASP.NET Core with dependency injection support?

One of the legacy applications our team manages contained the following pattern (in the controller): // initialization private readonly IServiceScopeFactory _serviceScopeFactory; public FooCon...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Alexei‭

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Q&A How to mock LazyCache when performing unit testing?

A few of my services rely on LazyCache and they use it by injecting IAppCache. For unit testing, I would like to mock this. I have found MockCachingService, but it does not do any caching (as spec...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Alexei‭

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Q&A Can I set a memory limit for the .NET Core garbage collector to collect objects more aggressively?

I have an ASP.NET Core 5 web application that provides functionality that involves file upload + rather large processing (memory consumption mainly). After each processing (with success or not) the...

2 answers  ·  posted 2y ago by Alexei‭  ·  edited 2y ago by Alexei‭

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Q&A Handling high frequency requests with cancellations in an ASP.NET Core application

Issue I have recently discussed with a friend a performance issue he and his colleagues have encountered in an ASP.NET Core 5 application (a checkout app, microservices architecture). The problem...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Derek Elkins‭

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Q&A How to find out which packages target .NET 3.1 in a .NET 5 application?

After upgrading a Web application from ASP.NET Core 3.1 to ASP.NET Core 5.0, it worked fine on an existing server. However, when deployed on a server that had only .NET 5.0 installed, the applicat...

1 answer  ·  posted 3y ago by Alexei‭  ·  last activity 3y ago by Alexei‭

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Q&A How to properly deal with impersonation in a Web application? (security vs. usefulness for tech support)

Context Our team has begun migrating a pretty old internal application and one aspect that got my attention is the impersonation. This is implemented as follows: only administrators are allowed...

2 answers  ·  posted 3y ago by Alexei‭  ·  last activity 3y ago by meriton‭

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Q&A How to tackle database migrations failure during application initialization on production systems?

Context My ASP.NET Core application got stuck in Production with a 5xx error. By inspecting the logs, I have noticed that a database error occurred during application initialization, namely a SQL ...

1 answer  ·  posted 3y ago by Alexei‭  ·  last activity 3y ago by misha130‭

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Q&A What should healthcheck of an Web API application actually check?

I have to add health checks to a rather new application (Web API, not a microservice) and I and a colleague are not agreeing about what other systems I should include in the check. This application...

1 answer  ·  posted 3y ago by Alexei‭  ·  edited 3y ago by Alexei‭

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Q&A How to manage views and stored procedures in an ASP.NET Core project?

I am slowly modernizing an older ASP.NET Core Web API and one of the steps involved migrating from database first to code first. Now, all schema changes and seeding is covered by migrations which ...

0 answers  ·  posted 3y ago by Alexei‭

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Code Reviews Are any downsides of hiding the actual Entity Framework Core DbSets and exposing only some generic methods?

I have recently started a project based on the clean architecture principle and noticed that it did not rely on generic repositories since Entity Framework's DbSets are doing the job just fine. In ...

0 answers  ·  posted 3y ago by Alexei‭

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Code Reviews Cache data using Redis Cache in an ASP.NET Core 3.1 project

This is an unanswered code review request of mine from Code Review Stack Exchange. Overview I have developed a small ASP.NET Core 3.1 Web API that provides information that is rarely changed (sever...

0 answers  ·  posted 3y ago by Alexei‭

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Code Reviews Measure ASP.NET Core 3.1 Web API action execution times

This is basically an unanswered code review request of mine from CodeReview Stack Exchange. I want to be able to log as accurately as possible, the time spent by a certain Web API action in an ASP....

0 answers  ·  posted 3y ago by Alexei‭

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Q&A Implementing impersonation in an ASP.NET Core Web application

I am working at a proof-of-concept for porting an ASP.NET MVC application to an ASP.NET Core API + Angular SPA. One of the features of the existing application is the ability of an admin (typically...

0 answers  ·  posted 3y ago by Alexei‭

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Q&A Is it recommended for ASP.NET Web API actions to always include a CancellationToken?

Note: This is basically a question from Stack Overflow that was closed for a very long period of time and I fear it might get closed again as primarily opinion based. I am wondering if my ASP.NET C...

1 answer  ·  posted 3y ago by Alexei‭  ·  last activity 3y ago by Peter Taylor‭