autobus-api_old/AutobusApi.Application/Countries/Queries/GetCountry/GetCountryQueryHandler.cs

39 lines
1.0 KiB
C#

using AutobusApi.Application.Common.Exceptions;
using AutobusApi.Application.Common.Interfaces;
using AutoMapper;
using AutoMapper.QueryableExtensions;
using MediatR;
using Microsoft.EntityFrameworkCore;
namespace AutobusApi.Application.Countries.Queries.GetCountry;
public class GetCountryQueryHandler : IRequestHandler<GetCountryQuery, CountryDto>
{
private readonly IApplicationDbContext _dbContext;
private readonly IMapper _mapper;
public GetCountryQueryHandler(
IApplicationDbContext dbContext,
IMapper mapper)
{
_dbContext = dbContext;
_mapper = mapper;
}
public async Task<CountryDto> Handle(
GetCountryQuery request,
CancellationToken cancellationToken)
{
var country = await _dbContext.Countries
.ProjectTo<CountryDto>(_mapper.ConfigurationProvider)
.SingleOrDefaultAsync(c => c.Id == request.Id);
if (country == null)
{
throw new NotFoundException();
}
return country;
}
}