ANTOOZA-BACKEND/Web.Api/Endpoints/Member/Follow/IsFollowing.cs

using System.Security.Claims;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Application.Abstractions.Messaging;
using Web.Api.Common;
using Web.Api.Extensions;

namespace Web.Api.Endpoints.Member.Follow;

internal sealed class IsFollowing : IEndpoint
{
    public sealed record Request(IReadOnlyList<string>? Sids);

    public void MapEndpoint(IEndpointRouteBuilder app)
    {
        app.MapPost("api/member/follow/check", async (
            [FromBody(EmptyBodyBehavior = EmptyBodyBehavior.Allow)] Request? request,
            ClaimsPrincipal user,
            ISender sender,
            CancellationToken ct
        ) => {
            var memberID = user.GetMemberID();

            if (memberID is null)
            {
                return ApiResponse.Fail(StatusCodes.Status401Unauthorized, "Invalid token");
            }

            var sids = request?.Sids ?? [];
            var query = new Application.Features.Api.Member.Follow.IsFollowing.Query(memberID.Value, sids);

            var result = await sender.Send(query, ct);

            return result.Match(
                data => ApiResponse.Ok(data),
                CustomResults.Problem
            );
        })
        .WithTags("Member.Follow")
        .RequireAuthorization();
    }
}