Bordin Posts - Answer Overflow

Bordin

•Created by Bordin on 4/12/2025 in #help

.NET Api Setup

Hello all, I just need advice in the setup of my .net project. I was making it using the typical Unit of work (Repository) architecture where you have a unit of work & services that call unit of work which has a bunch of classes that are repositories. Anyway, a week ago, someone here advised that because i am using EntityFramework, Unit of work is a bad practice, or not recommended. So I decided to get rid of unit of work & services. And inject the IRepository class in my apis. Program.cs:

builder.Services.AddTransient<IUserRepository, UserRepository>();

builder.Services.AddTransient<IUserRepository, UserRepository>();

And this is the repository, i am not declaring dbcontext, it's injected as well

    public class UserRepository(IHttpContextAccessor httpContextAccessor, OnlineShopContext myContext) : Repository<User>(httpContextAccessor, myContext), IUserRepository

    public class UserRepository(IHttpContextAccessor httpContextAccessor, OnlineShopContext myContext) : Repository<User>(httpContextAccessor, myContext), IUserRepository

user controller:

    public class UserController(
        IUserRepository userRepository,
        IHttpContextAccessor httpContextAccessor,
        IConfiguration configuration) : Helper(httpContextAccessor, configuration)

    public class UserController(
        IUserRepository userRepository,
        IHttpContextAccessor httpContextAccessor,
        IConfiguration configuration) : Helper(httpContextAccessor, configuration)

This works fine but Question is, in unit of work, i had to dispose the context do i need to do that here

106 replies

CC#

•Created by Bordin on 5/14/2024 in #help

Uploads folder

11 replies

CC#

•Created by Bordin on 5/5/2024 in #help

✅ SignalR Authorized Connection

namespace LebUpwork.Api.Hubs
{
    //[Authorize] <- This causes error when connecting 
    public class NotificationHub : Hub<INotification>
    {
        public override async Task OnConnectedAsync()
        {
           await Clients.Client(Context.ConnectionId).ReceiveNotification($"Thank you for connecting {Context.User?.Identity.Name}");
           await base.OnConnectedAsync();
        }
    }
    
}

namespace LebUpwork.Api.Hubs
{
    //[Authorize] <- This causes error when connecting 
    public class NotificationHub : Hub<INotification>
    {
        public override async Task OnConnectedAsync()
        {
           await Clients.Client(Context.ConnectionId).ReceiveNotification($"Thank you for connecting {Context.User?.Identity.Name}");
           await base.OnConnectedAsync();
        }
    }
    
}

hello, i am initiating a connection on this Hub, however when i add [Authorized] the connection is failing

const connection = new HubConnectionBuilder()
        .withUrl("https://localhost:7170/Hubs/NotificationHub", {
          accessTokenFactory: () => token,
          skipNegotiation: true,
          transport: HttpTransportType.WebSockets,
        })
        .build();

const connection = new HubConnectionBuilder()
        .withUrl("https://localhost:7170/Hubs/NotificationHub", {
          accessTokenFactory: () => token,
          skipNegotiation: true,
          transport: HttpTransportType.WebSockets,
        })
        .build();

even tho I am adding the accessTokenFactory. Am i doing something wrong?

10 replies

CC#

•Created by Bordin on 3/24/2024 in #help

SignalR

Hi, I am trying to create a Notification feature for my application and I figured it should be Real-time. Which is why i am trying to use SignalR but i don't quite understand it. I made a notification hub

using Microsoft.AspNetCore.SignalR;
using System.Threading.Tasks;
namespace LebUpwork.Api.Hubs
{
    public class NotificationHub : Hub
    {
        public async Task SendNotification(string user, string message)
        {
            await Clients.All.SendAsync("ReceiveNotification", user, message);
        }
    }
}

using Microsoft.AspNetCore.SignalR;
using System.Threading.Tasks;
namespace LebUpwork.Api.Hubs
{
    public class NotificationHub : Hub
    {
        public async Task SendNotification(string user, string message)
        {
            await Clients.All.SendAsync("ReceiveNotification", user, message);
        }
    }
}

So, i really dont understand what a hub is and i have read and asked chatgpt but i can't figure it out. What's a user? what's a message? how does it know who the client is? i really dont understand anything I added the hub in program.cs btw so that step is done. I just dont know how that is supposed to send notifications because apparently it shouldn't return anything.

10 replies

CC#

•Created by Bordin on 2/5/2024 in #help

Models&sql

56 replies

CC#

•Created by Bordin on 2/3/2024 in #help

Securing API with jwt

27 replies

CC#

•Created by Bordin on 7/29/2023 in #help

✅ file path not saving properly with id

[HttpPost("")]
        public async Task<ActionResult<CompanyResource>> CreateCompany([FromForm] SaveCompanyResource saveCompanyResource)
        {
            var validator = new SaveCompanyResourceValidator();
            var validationResult = await validator.ValidateAsync(saveCompanyResource);
            var uploadsFolderPath = "Uploads/";
            if (!validationResult.IsValid)
                return BadRequest(validationResult.Errors); // this needs refining, but for demo it is ok

            var companyToCreate = _mapper.Map<SaveCompanyResource, Company>(saveCompanyResource);
            if (saveCompanyResource.Logo != null && saveCompanyResource.Logo.Length > 0)
            {
                // Generate the filename using the CompanyId or any other unique identifier
                var fileName = companyToCreate.CompanyId.ToString() + Path.GetExtension(saveCompanyResource.Logo.FileName);
                var filePath = Path.Combine(uploadsFolderPath, fileName);

                using (var stream = new FileStream(filePath, FileMode.Create))
                {
                    await saveCompanyResource.Logo.CopyToAsync(stream);
                }

                // Set the file path in the companyToCreate object to be "Uploads/companyId.jpg"
                companyToCreate.Logo = filePath.ToString();
            }
            var newCompany = await _companyService.CreateCompany(companyToCreate);

            var company = await _companyService.GetCompanyById(newCompany.CompanyId);

            var companyResource = _mapper.Map<Company, CompanyResource>(company);

            return Ok(companyResource);
        }

[HttpPost("")]
        public async Task<ActionResult<CompanyResource>> CreateCompany([FromForm] SaveCompanyResource saveCompanyResource)
        {
            var validator = new SaveCompanyResourceValidator();
            var validationResult = await validator.ValidateAsync(saveCompanyResource);
            var uploadsFolderPath = "Uploads/";
            if (!validationResult.IsValid)
                return BadRequest(validationResult.Errors); // this needs refining, but for demo it is ok

            var companyToCreate = _mapper.Map<SaveCompanyResource, Company>(saveCompanyResource);
            if (saveCompanyResource.Logo != null && saveCompanyResource.Logo.Length > 0)
            {
                // Generate the filename using the CompanyId or any other unique identifier
                var fileName = companyToCreate.CompanyId.ToString() + Path.GetExtension(saveCompanyResource.Logo.FileName);
                var filePath = Path.Combine(uploadsFolderPath, fileName);

                using (var stream = new FileStream(filePath, FileMode.Create))
                {
                    await saveCompanyResource.Logo.CopyToAsync(stream);
                }

                // Set the file path in the companyToCreate object to be "Uploads/companyId.jpg"
                companyToCreate.Logo = filePath.ToString();
            }
            var newCompany = await _companyService.CreateCompany(companyToCreate);

            var company = await _companyService.GetCompanyById(newCompany.CompanyId);

            var companyResource = _mapper.Map<Company, CompanyResource>(company);

            return Ok(companyResource);
        }

I am creating a file with path Uploads/companyId.png However. The companyId is 0 because i am creating newCompany after i create the path. And if i created it before it saves as Microsoft.AspNetCore.http... And i guess that's because i created the company with no path. any idea how i can fix this? its so confusing

10 replies

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