feat(directory): ✨ add GET maintainers endpoint

services/directory/src/FilterLists.Directory.Api/Controllers/MaintainersController.cs

@@ -0,0 +1,26 @@
+using System.Threading;
+using System.Threading.Tasks;
+using FilterLists.Directory.Application.Queries;
+using MediatR;
+using Microsoft.AspNetCore.Mvc;
+
+namespace FilterLists.Directory.Api.Controllers
+{
+    [ApiController]
+    [Route("v1/[controller]")]
+    public class MaintainersController : ControllerBase
+    {
+        private readonly IMediator _mediator;
+
+        public MaintainersController(IMediator mediator)
+        {
+            _mediator = mediator;
+        }
+
+        [HttpGet]
+        public async Task<IActionResult> Get(CancellationToken cancellationToken)
+        {
+            return Ok(await _mediator.Send(new GetMaintainers.Query(), cancellationToken));
+        }
+    }
+}

services/directory/src/FilterLists.Directory.Application/Queries/GetMaintainers.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using AutoMapper;
+using AutoMapper.QueryableExtensions;
+using FilterLists.Directory.Infrastructure.Persistence.Queries.Context;
+using FilterLists.Directory.Infrastructure.Persistence.Queries.Entities;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace FilterLists.Directory.Application.Queries
+{
+    public static class GetMaintainers
+    {
+        public class Query : IRequest<IEnumerable<MaintainerViewModel>>
+        {
+        }
+
+        public class Handler : IRequestHandler<Query, IEnumerable<MaintainerViewModel>>
+        {
+            private readonly IQueryContext _context;
+            private readonly IMapper _mapper;
+
+            public Handler(IQueryContext context, IMapper mapper)
+            {
+                _context = context;
+                _mapper = mapper;
+            }
+
+            public async Task<IEnumerable<MaintainerViewModel>> Handle(
+                Query request,
+                CancellationToken cancellationToken)
+            {
+                return await _context.Maintainers
+                    .ProjectTo<MaintainerViewModel>(_mapper.ConfigurationProvider)
+                    .ToListAsync(cancellationToken);
+            }
+        }
+
+        public class MaintainerViewModelProfile : Profile
+        {
+            public MaintainerViewModelProfile()
+            {
+                CreateMap<Maintainer, MaintainerViewModel>()
+                    .ForMember(m => m.FilterListIds,
+                        o => o.MapFrom(m => m.FilterListMaintainers.Select(fl => fl.FilterList.Id)));
+            }
+        }
+
+        public class MaintainerViewModel
+        {
+            public int Id { get; set; }
+            public string Name { get; set; } = null!;
+            public Uri? Url { get; set; }
+            public string? EmailAddress { get; set; }
+            public string? TwitterHandle { get; set; }
+            public IEnumerable<int>? FilterListIds { get; set; }
+        }
+    }
+}