public async Task SeedAsync(int retry = 0) { try { dbContext.Database.Migrate(); if (!await dbContext.Customers.AnyAsync()) { dbContext.Customers.AddRange(CustomerSeed.GetTestData()); } if (!await dbContext.Countries.AnyAsync()) { dbContext.Countries.AddRange(CountrySeed.GetTestData()); } if (!await dbContext.Cities.AnyAsync()) { dbContext.Cities.AddRange(CitySeed.GetTestData()); } await dbContext.SaveChangesAsync(); } catch (Exception) { if (retry > 0) { await SeedAsync(retry - 1); } } }