ocaparoglu 

Shared kernel primitives: Result, Error, Entity, domain event abstractions, and IDateTimeProvider.

CQRS interfaces (ICommand, IQuery, handlers), inbox message handler base, SQL connection factory abstraction, ConcurrencyException, and DI registration with validation/logging decorators via Scrutor.

Correlation ID primitives for distributed tracing: ICorrelationAccessor, AsyncLocal scope management, and Serilog enricher.

Inbox pattern: InboxMessage entity, EF Core configuration, IInboxDbContext, ProcessInboxMessagesJob (Quartz + Dapper), and InboxOptions.

ASP.NET Core utilities: GlobalExceptionHandler, CustomResults (Result-to-ProblemDetails), CorrelationIdMiddleware, RequestResponseLoggingMiddleware, IEndpoint pattern, Result Match extensions, ApiResponse... More information

DomainEventDispatcher, DomainEventDbContextBase (EF Core base with SaveChanges dispatch), and DateTimeProvider.

Outbox pattern: OutboxMessage entity, EF Core configuration, IOutboxDbContext, ProcessOutboxMessagesJob (Quartz + Dapper), and OutboxOptions.

RabbitMQ messaging: RabbitMqPublisher, RabbitMqConsumer (BackgroundService writing to inbox), RabbitMqOptions, and DI registration.

Keycloak JWT Bearer authentication, role/permission claim mapping, authorization policies, and Serilog structured logging for Onspay microservices.

Redis distributed cache: ICacheService, RedisCacheService (StackExchange.Redis via IDistributedCache), ICachedQuery marker interface, CachingDecorator for IQueryHandler, and CacheOptions.

Environment-based Elasticsearch logging with ECS-native data streams, correlation ID enrichment, and Serilog configuration.

Keycloak Admin REST API client for user, role, permission, and group management. Used by services that need to provision or modify Keycloak users (e.g., AuthService).

Elasticsearch sink for Onspay logging: opinionated ECS data stream naming, buffered ingestion, and API key authentication. Extends Onspay.Infrastructure.Logging.

HashiCorp Vault integration: IVaultService for reading KV v2 secrets via token auth, with short-TTL in-memory caching, and VaultOptions configuration.

Multi-tenant context: ICurrentTenantContext (ambient AsyncLocal, mirrors Onspay.Infrastructure.Correlation's pattern), ITenantResolver / ITenantClientEndpointResolver contracts with TenantResolverBase /... More information

Refit-based typed HTTP client registration for platform module-to-module calls (AddModuleClient<TApiInterface>). Automatically chains Onspay.AspNetCore's CorrelationIdDelegatingHandler/TenantIdDelegatingHandler... More information