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Questions tagged [asp.net-core]

ASP.NET Core is a lean, composable and cross-platform framework for building web and cloud applications. It is fully open source and available on GitHub, and is currently in version 1.1.0. ASP.NET Core can be run both on .NET and .NET Core, and can be hosted on Linux and MacOS under .NET Core.

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67 views

Using ClientFactory-pattern with Dependency Injection

I initially posted this on Stackoverflow but was recommended to try here instead. I'm looking for feedback on why the implementation of my ClientFactory is probably bad, from a Dependency ...
3
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1answer
63 views

Refactoring code to implement clean code using repositories

I've been refactoring code today, try to implement a clean code setup using repositories. Is this on track? Can any improvements be made? ...
3
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0answers
39 views

Flashcard Website

In my endeavor to learn Angular, I've created a flashcard site with an F#/Mongo backend. As I'm new to Angular, I'm going to post everything; any and all feedback is welcome. First, some pictures of ...
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1answer
45 views

Mixing Async and Sync in same HTTP request ASP.NET Core C#

Is it bad practice to mix async and sync call in same asp.net core api call? For example in following code Method CropBlackBroderOfAnImageAsync is an Async ...
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57 views

ASP .NET Core DI: Dependency on single implementation of multiple registrations of service type

Problem I have a DI scenario where I have multiple classes that implement a common interface (IModelService). I'm using a generic framework class (...
2
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1answer
78 views

HttpClient Wrapper for standardized API communication

This is our company's first attempt at an API and a mobile friendly web project, primarily we are desktop developers. We are using Identity Server 4 for serving up tokens and authentication, we have ...
0
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1answer
52 views

Asp.net middleware [closed]

This code is asp.net core middleware written in f# and called from c# for a blazor server-side app. How can this be made more efficient if any in regards to the async code. F#: ...
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1answer
31 views

Calculate sum of an attribute across multiple repositories

I have multiple repositories that contain userId, paidDate and amount attributes like ...
-1
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1answer
46 views

Reduce CPU utilization in constant pinging to API and saving data in to database service [closed]

I have this hosted service which grabs the data from API every second and process the data and save it into the database. I have similar 3 more hosted services which run at the same time. Because of ...
2
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0answers
61 views

ASP.Net Core WebAPI Authorization Policy for User or Admin [closed]

I have a controller that returns data about users. I want to set the authorization such that an admin can access this controller and retrieve data for any user, and a non-admin user can access the ...
2
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1answer
72 views

Hosted service which perform CRUD operations in high update environment

I have this hosted services which garbs the data from the API and save it in the database. But before saving it checks if the data already exists in the DB if not it creates the new row and if it ...
2
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1answer
44 views

Posting images from request to Azure blob

I have base Controller for Attachments, here is code of it In this controller, I pass data from the request and return URL of the posted object. ...
3
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1answer
51 views

Sub-Middleware like options builder for an Asp.Net Core Middleware

Building upon a recent question I answered here Simple middleware pipeline builder (similar to asp.net-core) I came across a cross site question Stackoverflow: Adding middleware in Carter ...
3
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1answer
84 views

Deserialize with LINQ query code in PageModel or PageView

Today I do something like this, where I get, select and sort some data and pass it on to the view (which loads a partial view) as a list of custom objects Page model ...
0
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1answer
135 views

Is there a better approach to implementing Dapper with Mediatr?

I'm playing around with using Dapper with Mediatr in a .NET Core API. It's all working nicely. Its a learning project for me so I am just putting together a system that will hold user details ...
2
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0answers
53 views

Own Authorization attribute

In the existing system, we need to rebuild the user's authorization. The database includes Roles and Rights Roles were previously used but will be skipped in the new version All authorization will ...
1
vote
1answer
32 views

Optimizing calls for reauthentication by caching tokens and cookies

I am currently developing a REST service in ASP.NET Core 2.2 that acts as a wrapper upon a REST API provided by a reporting solution. The reporting systems REST API authenticates the user based on a ...
2
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1answer
123 views

Removing a specific key of ModelState for a specific controller's method

I have a controller for Post and Put request for the same entity: MyModelDTO with some ModelState's attributes. The users can make a ...
2
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0answers
43 views

Retrieve file and other input fields from JavaScript to send to ASP.NET Core

I am currently developing an e-commerce website where users can upload their photos to customise their products. The use case begins when the user selects a product from our website (e.g. shirt). ...
3
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1answer
60 views

Logic is stored in Components that receive input data and update output data via Observables

I have C# ASP.Net Core Webapi application that makes some calculations for physical models. I have this project class: ...
1
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1answer
45 views

Inter module communication

I have two modules, Notification which basically contains SignalR hubs and CoreSetup which contains core setup logic in it. I have a class in CoreSetup module which keeps track of employee location . ...
2
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1answer
47 views

API endpoint that returns phone numbers

Background An API endpoint that returns phone numbers. I would appreciate some feedback on this very simple service class that is part of the overall solution. Here is its Interface: ...
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2answers
84 views

Extending IdentityUser with nullable foreign key to another IdentityUser [closed]

I'm working on a framework which builds on .net core Identity. Let's say I wanted to extend the IdentityUser<TKey> class with a ...
2
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0answers
53 views

Querying based on condition

I am using Entity Framework Core as ORM in my ASP.NET Core 2.1 project. I want to perform server-side pagination in Career Controller for getting list of careers. I have a model which looks like: <...
6
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2answers
68 views

Getting Authors and Books from a simple database

I have simple database with many to many relations. I wrote simple method GetAuthors() ...
3
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1answer
2k views

ASP.NET Core Request / Response logging middleware

I am looking for feedbacks about my ASP.NET Core Request / Response logging middleware, in particular in ways to lower the memory footprint and string allocations: ...
4
votes
1answer
82 views

Asp.net networking/restclient layer

I have been working on creating maintainable networking layer for our Asp.Net Core Web Api project. Right now I have created Generic methods for Get, Post, Put like this. ...
4
votes
1answer
89 views

Unit testing extension method adding view location expander

Introduction I'm writing unit tests for an extension method I wrote. Its only purpose it is to wrap startup logic which extends ViewLocationExpanders list by an ...
2
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0answers
93 views

Create an isolated dependency scope with “overrides” in Asp.Net Core

Some of the classes in my multi-tenant Asp.Net Core application depend on database repositories which in turn depend on a delegate called GetCurrentTenantKey. In ...
2
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0answers
119 views

WebAPI: Async Filtering CSV content + Json/XML Serialization

I am coding a csv file filtering api in ASP.NET Core, which takes a csv file located at a given uri (and retrieved via the query string) convert the content to a collection of records, then apply a ...
3
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0answers
426 views

Controller in an ASP.NET Web API application which generates a CSV file

I have a controller in an ASP.NET Web API application which generates a CSV file. The controller looks like this: ...
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1answer
69 views

AspNetCore - Injecting a Func<T> [closed]

I have an ASP.NET Core controller I am creating. The controller endpoint looks something like this right now: ...
4
votes
1answer
1k views

Safely executing background tasks in parallel in ASP.NET Core

Context and initial idea I'm trying to teach myself the CQRS and Event Sourcing patterns by developing a simple ASP.NET Core application, loosely following Greg Young's example CQRS implementation on ...
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0answers
223 views

.NET core controller method to populate jQuery datatable of users and roles

I want to know whether I am following the best practices of using jquery datatable with .net core. In Controller ...
4
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0answers
63 views

MVC Controller Error & Exception Handling .NET Core

I'm putting together a basic web app in .NET core 2.1 MVC to try and better understand how it works. Currently I'm working on returning validation to the UI. Once I have this working I then want to ...
4
votes
1answer
105 views

User controller for a .net core WebAPI dating app

I have this user controller that follows the repository pattern. It works perfect, but is it easy to understand? Is this good quality work? ...
1
vote
1answer
264 views

Passing restored packages as artefacts in GitLab Continuous Integration

Introduction I'm writing a script in YAML for building ASP.NET Core 2.2 project using GitLab Continuous Integration. In all YAML samples I could find (and there are not many) for building .NET Core ...
1
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0answers
48 views

Transparent proxy using HttpClient

I'm looking for feedback on some code I've written to work as a transparent proxy. I'm developing a web app that needs information from another web site's API, but that web site has disabled CORS and ...
4
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2answers
733 views

Generate secure URL safe token

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0answers
43 views

Modeling the Aggregates in the following Bounded Context - Domain Driven Design

I'm currently developing an application in ASP.NET Core 2.2 with Domain Driven Design. What you see in here is a Unit Creation page. A Unit is composed of competences. A unit must have at least one ...
5
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0answers
215 views

Auto register Func<T> for .net core dependecy injection

The default .net core dependency injection doesn't support building Func<> for injection automatically, see question. I wrote an extension method to go find all the Func in register types ...
1
vote
1answer
59 views

Hide parts of menu based on user role

I have menu that contains links to sections of website: ...
2
votes
0answers
77 views

Conditional AsyncLock implementation

I have a case where I match data from DB by the various filters. Until the match is updated in the DB, I don't want to accept requests for matching with the same criteria, as this could produce ...
5
votes
3answers
796 views

Length units converter

I am creating a very small application to demonstrate solid principles and also a brief implementation of a builder pattern, does anyone have any feedback as to how this could be improved or how it ...
2
votes
1answer
94 views

Repository of trainers

This is my first asp.net core web api and i did followed the Repository pattern but i don't know whether this approach is good practice. ...
1
vote
1answer
239 views

Extracting a list of objects from a repository as JSON

Currently, I am using the below code to make JSON data from list of objects. ...
2
votes
0answers
116 views

A custom session with transaction support using Dapper

I wanted to write a custom session to act as proxy for a Dapper connection that could support transactions without having to expose any other DB related entities. At first, I thought of opening a ...
0
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1answer
434 views

Asynchronously fetching data from the database

The following C# code is written to fetch the Categories data from SQL Server Database using Asynchronous Task for HttpGet. The Dapper library is used as ORM. I ...
1
vote
2answers
683 views

Creating an instance of an unit of work (NHibernate)

I'm trying to figure out how to create a NHibernate UnitOfWork using .NET Core Dependency Injection. I was just hard-coding the ...
4
votes
1answer
4k views

asp.net core - get User at Service Layer

I use ASP.NET Core 2.1 and would like to fetch User at a service level. I've seen examples when HttpContextAccessor gets ...