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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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 Injection-...
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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 ...
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OAuth2 login for ASP.NET Core without local accounts

I am using OAuth2 for users to sign in with their Google Account and authenticate Google API requests. I have not used the built-in ASP.NET Identity provider because this requires an app database of ...
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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 ...
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Logging into Database with ASP.NET Core

In the Startup.cs of my ASP.NET Core application I want to configure the LoggingFactory so that it logs into the database. ...
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ASP.NET Core 3.1 Web API + Pure DI

I was playing around with ASP.NET Core 3.1 and tried to implement Dependency Injection flavor called Pure DI, i.e. without dependency container (even the built in one) to instantiate Controllers. You ...
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943 views

Hosted service for queuing and running tasks in parallel in ASP.NET Core

I am attempting to construct a background service for an IIS-hosted ASP.NET Core project that basically queues tasks and runs them, and I decided to go with the ...
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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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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 (...
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934 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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1k views

wcf service client wrapper for asp.net core

My goal is to grab some data inside asp.net core app on server from external source via wcf service. In future i would like wcf responses to be cached on server and provide asp.net app clients "normal"...
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Using websocket to show progress for slow action with ASP.NET Core MVC

I have a process that takes a substantial amount of time (several minutes) and would like to trigger it from a web browser and give feedback to the user that it is working. I created some code that ...
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60 views

Uploading files through streaming with SignalR

I want to upload files from my Javascript client to my WebAPI. With this I want to have a progress bar. My Idea was to cut the files up in chunks and then stream them via SingalR since we are using ...
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66 views

Web API get data with many optional parameter in .NET Core

I would like to do a refactoring of web API implemented in .NET Core. The Goal is to simplify ...
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71 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 ...
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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). ...
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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: <...
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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 ...
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209 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 ...
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108 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 ...
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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 ...
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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 ...
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133 views

Send image between apps

I have an ASP.NET CORE API app and now I have an endpoint like: ...
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Handle login method with external users and LDAP users

I'm working with a ASP.NET Core (v2.2) Web Api project and implemented some APIs. However, I'm facing performance issues, hence trying to optimizing the code. Here is the login API code. ...
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218 views

Accurately measure ASP.NET Core 3.x actions execution times (Web API project)?

I want to be able to log the time spent by a certain Web API action in an ASP.NET Core 3.x application. This is a very old question from ASP.NET which relies on global action filters, but in ASP.NET ...
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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 ...
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57 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 ...
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388 views

ASP.NET Core basic login implementation

I'm fairly new to ASP.NET Core, I've used webforms for years so I naturally want to cling to things I did with webforms. The following code works, but I'm wondering if it can be cleaned up with ...
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836 views

Generating ssh keys from asp.net core

I have started to create a console app, which I am testing locally on my mac. The idea is to generate an ssh key and structure the storage of these keys within the ...
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Azure's service bus queue handler

I'm using azure's service bus in order to make orders using a IOrderLogicService interface. The Logger.InsertLog is irrelevant ...
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108 views

Cache most expensive data using Redis Cache in an ASP.NET Core project

Overview I have developed a small ASP.NET Core 3.0 Web API that provides information that is rarely changed (several times a day), but often read (~ 10 K / day). Although the traffic is quite small, ...
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ASP.Net Core API JsonPatchDocument

Hi I am creating a website for my chiropractor and I am creating the API for data access. I am creating a HttpPatch Method and want to know if this is the right approach so would be grateful if you ...