command-handler

To implement MediatR command handlers for event-sourced microservices, use primary constructor dependency injection and IUnitOfWork to orchestrate commands. Rebuild aggregates from history using LoadFromHistory, then commit new events deterministically via ICommitEventService to ensure idempotency and proper event sourcing.

The best way to rebuild aggregates from event history in a command handler is using the LoadFromHistory method. Apply domain-specific command patterns to reconstruct aggregate state before validating and committing new events through ICommitEventService, ensuring reliable and idempotent workflows.

To ensure idempotency when committing events in a MediatR command handler, use ICommitEventService to commit new events deterministically. Rebuild aggregates from history first, apply domain commands, then commit through the dedicated service to maintain reliable event sourcing workflows.

Yes, this command handler pattern works with domain-driven design and feature-folder organization. Commands are structured under Application/Features/Commands folders, enforcing primary constructor DI, IUnitOfWork, and ICommitEventService usage for maintainable and consistent event-sourced microservices.

To structure create and update commands using MediatR and IUnitOfWork, use primary constructor dependency injection within feature-folder boundaries under Application/Features/Commands. Rebuild aggregates from history, apply domain commands, and commit events through ICommitEventService for reliable workflows.

Your event-sourced command handler needs ICommitEventService alongside IUnitOfWork to commit new events deterministically. While IUnitOfWork manages transactional boundaries, ICommitEventService ensures proper event sourcing and idempotency when persisting new events after rebuilding aggregates from history.