Major update

teams/Handlers/GetTeamsQueryHandler.cs

@@ -0,0 +1,26 @@
+using System;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Teams.DbContexts;
+using Teams.Entities;
+using Teams.Helpers;
+using Teams.Queries;
+
+namespace Teams.Handlers
+{
+	public class GetTeamsQueryHandler : IRequestHandler<GetTeamsQuery, PagedList<Team>>
+	{
+		private readonly TeamsContext _dbContext;
+
+		public GetTeamsQueryHandler(TeamsContext dbContext)
+		{
+			_dbContext = dbContext ?? throw new ArgumentNullException(nameof(dbContext));
+		}
+
+		public async Task<PagedList<Team>> Handle(GetTeamsQuery request, CancellationToken cancellation)
+		{
+			return PagedList<Team>.ToPagedList(await _dbContext.Teams.ToListAsync(), request.PageNumber, request.PageSize);
+		}
+	}
+}
+