working customer post, get and delete

AB.Persistence/Repos/CustomerRepository.cs

@@ -0,0 +1,36 @@
+using AB.Domain.Entities;
+using AB.Domain.Repositories;
+using Microsoft.EntityFrameworkCore;
+
+namespace AB.Persistence.Repos;
+
+public class CustomerRepository : ICustomerRepository
+{
+
+    private readonly RepoDbContext _dbContext;
+
+    public CustomerRepository(RepoDbContext dbContext)
+    {
+        _dbContext = dbContext;
+    }
+
+    public async Task<IEnumerable<Customer>> GetAllAsync(CancellationToken cancellationToken)
+    {
+        return await _dbContext.Customers.ToListAsync(cancellationToken);
+    }
+
+    public async Task<Customer> GetByIdAsync(Guid customerId, CancellationToken cancellationToken)
+    {
+        return await _dbContext.Customers.FirstOrDefaultAsync(x => x.CustomerId == customerId, cancellationToken);
+    }
+
+    public void Insert(Customer customer)
+    {
+        _dbContext.Customers.Add(customer);
+    }
+
+    public void Remove(Customer customer)
+    {
+        _dbContext.Customers.Remove(customer);
+    }
+}