Index: iknow-api/Repository/Implementations/RefreshTokenRepository.cs
===================================================================
--- iknow-api/Repository/Implementations/RefreshTokenRepository.cs	(revision 3347c1b709ebb3bce2d308c2a77f0e13470fc799)
+++ iknow-api/Repository/Implementations/RefreshTokenRepository.cs	(revision 3347c1b709ebb3bce2d308c2a77f0e13470fc799)
@@ -0,0 +1,37 @@
+using iknow_api.Models;
+using iknow_api.Data;
+using iknow_api.Models;
+using Microsoft.EntityFrameworkCore;
+using iknow_api.Services;
+using iknow_api.DTOs;
+
+namespace iknow_api.Repositories
+{
+    public class RefreshTokenRepository : IRefreshTokenRepository
+    {
+        private readonly AppDbContext _context;
+
+        public RefreshTokenRepository(AppDbContext context)
+        {
+            _context = context;
+        }
+        
+        public async Task AddTokenAsync(RefreshToken refreshToken)
+        {
+             _context.RefreshToken.Add(refreshToken);
+            await _context.SaveChangesAsync();
+        }
+
+        public Task<bool> DeleteTokenAsync(string refreshTokenDto)
+        {
+            throw new NotImplementedException();
+        }
+
+
+        public async Task<bool> VerifyTokenAsync(VerifyRefreshTokenDto refreshTokenDto)
+        {
+             return await _context.RefreshToken
+            .AnyAsync(rt => rt.Token == refreshTokenDto.token && !rt.IsValid && rt.ExpiresAt > DateTime.UtcNow);
+        }
+    }
+}