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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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29 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 ...
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0answers
7 views

Dependency Injection approach pass just one IServiceProvider or one parameter for each interface? [on hold]

I am not sure of what is the best approach between pass a IServiceProvider or to pass directly the interfaces I will need. ...
0
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1answer
44 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#: ...
1
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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
votes
1answer
43 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
58 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
67 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 ...
6
votes
1answer
581 views

.NET Core MVC - Future proof Hashing of passwords

I have written a Helper for Hashing passwords in .NET Core. It should have the following constraints: Future proof (It should be possible to upgrade the Hashing Engine to support Legacy and New ...
4
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1answer
809 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 ...
3
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1answer
80 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 ...
3
votes
1answer
48 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 ...
2
votes
1answer
43 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. ...
1
vote
1answer
59 views

Hide parts of menu based on user role

I have menu that contains links to sections of website: ...
7
votes
1answer
451 views

Playing Checkers

Continuing with my web-based checkers game, this question is about the actual playing system. I'll ask for a review on my UI system in the next post. First, my BoardController.cs. Note that I have ...
0
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1answer
104 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 ...
1
vote
1answer
31 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 ...
4
votes
1answer
81 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. ...
2
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0answers
52 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 ...
2
votes
1answer
93 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 ...
7
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2answers
9k views

Adding extension methods to IServiceCollection in ASP.NET Core

I have the following extension method to add themes support to my application: ...
2
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0answers
42 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
vote
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
votes
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: ...
-1
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2answers
81 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
votes
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
votes
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() ...
2
votes
1answer
1k 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
85 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
90 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
votes
0answers
98 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 ...
1
vote
1answer
235 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 ...
3
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0answers
346 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
67 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
0answers
61 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 ...
0
votes
0answers
216 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 ...
2
votes
0answers
179 views

Choosing which PDF preview to generate

I have a single controller that has two methods. One generates a PDF preview [GeneratePDFPreview] and then ultimately an actual PDF document [GeneratePDF]. It uses the Rotativa library to generate the ...
4
votes
1answer
98 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
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0answers
45 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
votes
2answers
599 views

Generate secure URL safe token

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1
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0answers
41 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
186 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 ...
2
votes
1answer
832 views

Tag helper to add class if the model is invalid

I need to add a specific class to the input if the model is invalid ValidationErrorClassTagHelper.cs ...
2
votes
0answers
72 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
736 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 ...
5
votes
2answers
9k views

Proper way to work with stored procedures in Entity Framework Core

I need to work with stored procedures, with the help of Entity Framework Core. This is my function: ...
2
votes
1answer
92 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
233 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. ...
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 ...
8
votes
1answer
95 views

Shopping cart purchase method in service layer

The following is a class in the service layer of an ASP.NET Core web application, which currently contains a single method: PurchaseCart. The intention is that an ID is passed in to a "shopping cart" ...