Rystem.RepositoryFramework allows you to use correctly concepts like repository pattern, CQRS and DDD. You have interfaces for your domains, auto-generated api, auto-generated HttpClient to simplify connection "api to front-end", a functionality for auto-population in memory of your models, a functionality to simulate exceptions and waiting time from external sources to improve your implementation/business test and load test.
public interface IRepositoryPattern<T> : IRepositoryPattern<T, string>, ICommandPattern<T>, IQueryPattern<T>, IRepositoryPattern, ICommandPattern, IQueryPattern
where TKey : notnull
{
}
Examples
Model
public class User
{
public string Id { get; set; }
public string Name { get; set; }
public string Email { get; set; }
}
Command
public class UserWriter : ICommandPattern<User, string>
{
public Task<bool> DeleteAsync(string key, CancellationToken cancellationToken = default)
{
//delete on with DB or storage context
throw new NotImplementedException();
}
public Task<bool> InsertAsync(string key, User value, CancellationToken cancellationToken = default)
{
//insert on DB or storage context
throw new NotImplementedException();
}
public Task<bool> UpdateAsync(string key, User value, CancellationToken cancellationToken = default)
{
//update on DB or storage context
throw new NotImplementedException();
}
}
Query
public class UserReader : IQueryPattern<User, string>
{
public Task<User?> GetAsync(string key, CancellationToken cancellationToken = default)
{
//get an item by key from DB or storage context
throw new NotImplementedException();
}
public Task<bool> ExistAsync(string key, CancellationToken cancellationToken = default)
{
//check if an item by key exists in DB or storage context
throw new NotImplementedException();
}
public Task<IEnumerable<User>> QueryAsync(Expression<Func<User, bool>>? predicate = null, int? top = null, int? skip = null, CancellationToken cancellationToken = default)
{
//get a list of items by a predicate with top and skip from DB or storage context
throw new NotImplementedException();
}
}
Alltogether as repository pattern
if you don't have CQRS infrastructure (usually it's correct to use CQRS when you have minimum two infrastructures one for write and delete and at least one for read)
public class UserRepository : IRepositoryPattern<User, string>, IQueryPattern<User, string>, ICommandPattern<User, string>
{
public Task<bool> DeleteAsync(string key, CancellationToken cancellationToken = default)
{
//delete on with DB or storage context
throw new NotImplementedException();
}
public Task<bool> InsertAsync(string key, User value, CancellationToken cancellationToken = default)
{
//insert on DB or storage context
throw new NotImplementedException();
}
public Task<bool> UpdateAsync(string key, User value, CancellationToken cancellationToken = default)
{
//update on DB or storage context
throw new NotImplementedException();
}
public Task<User?> GetAsync(string key, CancellationToken cancellationToken = default)
{
//get an item by key from DB or storage context
throw new NotImplementedException();
}
public Task<bool> ExistAsync(string key, CancellationToken cancellationToken = default)
{
//check if an item by key exists in DB or storage context
throw new NotImplementedException();
}
public Task<IEnumerable<User>> QueryAsync(Expression<Func<User, bool>>? predicate = null, int? top = null, int? skip = null, CancellationToken cancellationToken = default)
{
//get a list of items by a predicate with top and skip from DB or storage context
throw new NotImplementedException();
}
}