Questions tagged [asp.net-core]
A free, open source and cross platform web development framework for building .NET web applications.
194
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In .net 6 dependency injection and Program.cs, what is the best practice for handling a large number of dependencies?
I've seen a ton of examples of how to do DI, and the example always shows two dependencies. But what about when you have 50 or 100 dependencies (or more) in a large-ish application? The Program.cs ...
- 149
0
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1
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49
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sql migration - decoupling deployment from execution
We have a .NET c# solution that uses AliaSQL to run database migrations / to build the backend. I have a situation where we need to write some SQL Server logic that will
copy records from Table A to ...
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-3
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2
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210
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Chose between .net 4.8.1 and .net core 6.0 . is the support life cycle an important factor to consider
I want to start developing a long-life ERP system to a customer. now on paper I would chose to develop it using .NET core 6.0 with SQL Server. But one of the main drawbacks which the customer did not ...
-1
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1
answer
66
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PowerApps with SharePoint Versus ASP.NET core with SQL Server
I have around 6 years of experience in SharePoint, ASP.NET MVC, ASP.NET Core MVC & SQL Server. Now when I want to take a decision, if the project should be implemented using SharePoint/PowerApps ...
0
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1
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54
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Including currect user/roles data within object state in .Net applications to control object behavior
I am building a .Net Core Blazor Server application. The application creates records of a Project class which move through a workflow with various phases of review and acceptance/rejection before ...
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3
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1
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691
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Should web API controller actions that perform no async work always be declared as async?
I have been going over our app web api and making sure all async work is async all the way - and no artificial asynchronicity is enforced.
Say I have the following web api controller:
[HttpGet]
...
- 361
0
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4
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147
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Microservice arcitecture - seperation of services
The Microservice arcitecture is still a new thing for me to work with, so it gives me some unanswered questions.
In my case each MicroService has its own database.
I need a UserService to handle CRUD ...
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2
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3
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340
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What should we do in face of a failing sub in pub-sub?
I'm working on a microservices application that is implemented from the ground up with MediatR em CQRS. We have a list of domain events that will be published via MediatR [simple pub-sub library that ...
- 490
3
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1
answer
728
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Seeding data into a new microservice
I've been reading though Architecture for containerized .NET applications book, and I have a question about replicating data from from service into another:
And finally (and this is where most of ...
- 163
1
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1
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204
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Pulling a service out from a modular monolith
I've been looking into the Modular Monolith, especially how it's described by Kamil Gryzbek. From what I understand, the architecture should easily support pulling a single service out from the ...
- 163
0
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1
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85
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Benefit of using Dependency Injection inside ASP.NET Core MVC
I am reading this article about using DI inside ASP.NET Core @ https://learn.microsoft.com/en-us/aspnet/core/fundamentals/dependency-injection?view=aspnetcore-6.0 .. but i can not understand its ...
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3
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719
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Is It Considered Good Practice to Use Dependency Injection with Strategies from a NuGet Package?
I am developing a NuGet package which contains shared code for various ASP.NET Core projects. I am planning to use the strategy pattern to solve the same problem in a few different ways. So there will ...
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1
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3
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499
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Domain Driven Design - Aggregate Root and Nested Aggregate Invariants
I've come to a bit of an impasse with the best way to implement a DDD problem, and am hoping for some advice from those with more experience, please.
I have a RecipeCollection, which has a collection ...
- 119
0
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1
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289
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REST API designing resources for complex entities
I have an ASP.Net Core Web API where I am having difficulties designing the REST resources based on the EF Entities I have.
There are three entities that describe a Reservation. First, there is the ...
- 111
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vote
1
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1k
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How to handle duplicate validation logic with CQRS pattern
I am implementing a CQRS pattern in ASP.NET Core with MediatR, and I am wondering what the general consensus is for handling duplicate validation logic for queries/commands which operate on the same ...
- 119
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2
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289
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Which strategy to use to create object instances
I have this use case (I've simplified it):
Each student can apply for one or multiple activities. As of now we only have Swimming activity onboarded on the system, but we expect to have more. Base ...
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2
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115
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Is it bad style to share a Model class between two API Endpoints?
I have the following scenario:
My .NET Core API has two Endpoints CreateProduct and UpdateProduct.
The only difference between the two will be that UpdateProduct will need to know the ID of the ...
- 535
1
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1
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315
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Testing API with Auth0-enabled user authentication and authorization
I have a REST API and a SPA application, with Auth0 server issuing access tokens and enabling end users to login with their social identity provider. The API expects to receive a JWT access token with ...
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1
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0
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154
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ASP .NET Core 6 - .razor components - Routing
I come from a background in ASP.NET MVC 5 on .NET 4.8.
I've been trying to wrap my head around the new razor pages, and can't seem to get routing to work, or understand it, even.
I don't want to use ...
2
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1
answer
383
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In an MVC Application, What Goes Where?
In an Model-View-Controller (MVC) design pattern, What goes where? What code goes to model and to controller?
I know (do I?) that business logic should be define in a model, but a lot of example I ...
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208
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Microservice code reuse strategy for static classes
Hope this is the right place to post an opinion-based question like this. I'm in the process of converting an aging API monolith to a set of .NET 5/C#-based microservices and working on the code reuse ...
- 101
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2
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296
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Is it safe to use the same IoC container for your own and third-party services?
I am developing an application with ASP.NET Core with the ability to dynamically add new libraries that implement the necessary functions. They can be included at the start.
I have already written ...
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5
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8k
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Is it a bad practice to use Singleton for DI in Asp.net rather than Scoped, Transient whenever possible?
We had a conversation (with coworkers) about why we needed to use Singleton for Controller, Business Services, and Repositories.
The reason for this, they claim, is because singleton ensures that code ...
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2
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856
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CQRS MediatR Create many items commad - is it a good practise?
I am here to ask question about:
is it good practice to insert many records using CQRS and MediatR?
how to structure that in terms of names and folders?
A have to insert into database over 500 ...
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1
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2k
views
How to unit test public method which internally calls many internal or private methods which are already individually unit tested [duplicate]
In our ASP.NET Core application, we have many APIs which are calling public method from the service class. Service class is implementing an Interface. Each service method (depending upon complexity ...
- 113
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2
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735
views
Where to internationalize emails in a DDD application?
I am building an application with ASP.NET Core 5.0 following DDD and the CQRS pattern. I internationalize on the presentational layer but when I send emails I send them in the application layer via an ...
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2
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915
views
One API or Two APIs one for internal use and the other for external use
I follow the Layered architecture Like this:
But with two differences:
I use Blazor Assembly for UI Layer.
I have API layer(REST) In between the presentation layer and the service layer.
My ...
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1
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81
views
How best to structure this MVC or Razor Pages web application given a required tcp/ip server data source that acts like a web api?
I am rewriting an old asp.net 4.0 web forms website that exposes an application's data and logic to the web. I am moving this to a .net core mvc or razor page project. The website has minimal ...
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629
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ASP.NET Core - Using Partial Views inside a Modal window for my Add/Edit/View Details screens?
I've been developing .NET projects for the past 3 years, and on my recent web .NET projects, I've been using Partial Views for all the screens that contain Forms for Add/Update/Delete or other ...
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0
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635
views
add web api endpoint, which return html from view
I have ASP.NET 5 Web Api and need to do the following task:
Add endpoint, which get cshtml page and return generated html, so it should do the same what is does razor view engine.
What is better way ...
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0
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26
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Design a multiple Asp.Net Core apps Solution
I am having an .Net Core Solution consisting of 3 Projects:
The Site (Asp.Net Core MVC WebApp)
The API (Asp.Net Core API)
The "Common" library for shared functionality.
The Common library ...
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2
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188
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Extend the ApplicationUser class or use a Person class?
I am making a web system using Asp.Net Core with individual user accounts (Identity), and I was thinking about how I should store the users' personal information in the database.
The system will have ...
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1
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723
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Replacing in-memory queue with messaging queue service
In our application (ASP.NET core) we have events that require computations and which results need to be persisted in a database (the objects are projects that need recalculations when a property ...
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1
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3k
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why controller lifetime is transient by default in asp.net core? [closed]
I know the lifetime of the controller class is transient by default, but I think it's better to be singleton. should explain to me why creators choose transient instead of singleton or scope lifetime? ...
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2
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850
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What is suggested way to use iHostedService of .NET core or Windows service when process runs for exponential hour time (up till hours)?
I wanted to create a background job in which I want to use the retry mechanism for that I want to use the Polly. My requirement is like this:
the First retry should be done after 2 hours
the Second ...
0
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1
answer
32
views
Getting sums of multiple leveled relations efficiently
I'm currently building an API and a web app for an internal warehouse system using NET Core.
I have the core entity structure, that goes like this:
"Material" has many "MaterialSubtypes&...
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2
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60
views
Strategy for Chrome timing out on a Database cleanup job which takes a long time
I have a notifications app which sends users notifications. It uses a .NET core backend, an angular frontend and Cosmos DB. Within this I have an API endpoint function which is linked to a button used ...
0
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1
answer
287
views
Session Scoped Dependency Injection vs Caching in Data Access Layer
The issue at hand is that I don't want to repeatedly hit the DB to look up user information for the logged in user over the course of the many requests made within a single session.
My first ...
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474
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Web Components/Redux with .NET Core MVC viable?
I'm currenty building several new themes using NopCommerce, a .NET e-commerce platform using the MVC architecture.
NopCommerce exposes a lot of services to you for communicating with the db, and is ...
- 103
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1
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260
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Managing Documentation / Source Control for a Full-Stack Application Across Multiple Repos
TL;DR
I have a moderately sized/complexity web application (Angular 11) in one repo and a standalone REST API (.NET Core 3 / C#) in another repo, and am trying to figure out the most efficient way to ...
- 179
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68
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Deisgn Pattern: How to map UI requests to Controllers to Services?
I'm learning about writing WebApi design patterns.
I am trying to create a simple CRUD web app with ReactJS UI and C# .NET CORE webapi with sql backend.
Articles show that specific Repositories are a ...
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508
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ASP.NET MVC Caching of ViewModels
My question is regarding caching and ViewModels in ASP.NET (Core) MVC.
I have a service which injects a Repository<T> which is used to fetch domain models from the database. The service layer ...
- 139
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0
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47
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How to implement timing-mechanism for fantasy draft process utilizing ASP.NET Core 3.1 SignalR
I have developed a Fantasy Draft system utilizing ASP.NET Core SignalR, along with Azure's SignalR service (for backplane/scaling stuff).
Last year I utilized a poor-mans' javascript version that just ...
- 411
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1
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224
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Should I decouple domain models from IIdentity in ASP.NET core?
I saw a lot of examples of decoupling domain models from Identity models. For my knowledge, currently IIdentity is included in standard .NET library, so is this actual now and should I follow this ...
- 111
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4
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442
views
What problems could be caused by inserting into a database on an HTTP GET?
I have code that checks if the scanned qr code exist in the database and if it exist it will insert data into another table but I did it in the HTTP GET request, is this alright to do it this way or ...
5
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4
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411
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How to create a modular system of multiple .NET Core applications extending a single application?
So first of all let me explain what I want to achieve:
I want to create a basic .NET Core console application which is responsible for loading external extensions (more on this later on), listening ...
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710
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Do I need a service layer if my current service layer looks like this? Also asking about other basic controller service-repository patterns questions
I currently have a service class RoutineService.cs that contains methods that each perform one thing, call the repository and return that exact same object.
With how simple it is, is my service ...
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3
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609
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Preventing presentation layer from directly accessing repositories?
I'm trying to design my application in line with the "onion architecture" principles, and have something like the following:
HospitalController (depends on IHospitalService)
\
--- ...
- 1,288
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1k
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Best practice for pulling bulk data from APIs and storing in database
I have written a small application using ASP.NET Core to create and manage collections of cards for a collectable card game. I currently have a version that successfully downloads bulk card data via ...
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102
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Implementing the microservice pattern
We are developing a system that runs a certain kind of simulation for our customers:
Every simulation runs on it's own server.
We typically have a two digit number of simulations running.
A client ...
- 163