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public class AddProductCommandHandler : IRequestHandler<AddProductCommand> | |
{ | |
private readonly ProductDatabase _database; | |
private readonly IMediator _mediator; | |
public AddProductCommandHandler(ProductDatabase database, IMediator mediator) | |
{ | |
_database = database; | |
_mediator = mediator; | |
} | |
public void Handle(AddProductCommand command) | |
{ | |
// command validation | |
// add product to database | |
var @event = new ProductAddedEvent(product.Id, product.Name, product.CategoryId); | |
_mediator.Publish(@event); | |
} | |
} | |
public class AddReviewCommandHandler : IRequestHandler<AddReviewCommand> | |
{ | |
private readonly ProductDatabase _database; | |
private readonly IMediator _mediator; | |
public AddReviewCommandHandler(ProductDatabase database, IMediator mediator) | |
{ | |
_database = database; | |
_mediator = mediator; | |
} | |
public void Handle(AddReviewCommand command) | |
{ | |
// command validation | |
// add review to database | |
var @event = new ReviewAddedEvent(review.Id, review.UserId, review.ProductId, review.Rating); | |
_mediator.Publish(@event); | |
} | |
} | |
public class CompleteOrderCommandHandler : IRequestHandler<CompleteOrderCommand> | |
{ | |
private readonly ProductDatabase _database; | |
private readonly IMediator _mediator; | |
public CompleteOrderCommandHandler(ProductDatabase database, IMediator mediator) | |
{ | |
_database = database; | |
_mediator = mediator; | |
} | |
public void Handle(CompleteOrderCommand command) | |
{ | |
// command validation | |
// create order in database | |
var @event = new OrderCompletedEvent(order.Id, order.ProductId, order.Amount); | |
_mediator.Publish(@event); | |
} | |
} | |
public class ChangeFieldValueCommandHandler | |
{ | |
private readonly ProductDatabase _database; | |
private readonly IMediator _mediator; | |
public ChangeFieldValueCommandHandler(ProductDatabase database, IMediator mediator) | |
{ | |
_database = database; | |
_mediator = mediator; | |
} | |
public void Handle(ChangeFieldValueCommand command) | |
{ | |
// command validation | |
// change field value for product | |
var @event = new FieldValueChangedEvent(fieldValue.Id, fieldValue.Value); | |
_mediator.Publish(@event); | |
} | |
} |
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