ocaparoglu 

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

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

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

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

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

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

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: named buses each with multiple queues; per-queue HasInbox chooses the IInboxWriter (from Onspay.Infrastructure.Inbox) or a project-supplied IRabbitMqMessageHandler; multi-bus... More information

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

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

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>) AND tenant-configured external integrations (AddExternalClient<TApiInterface>). Automatically... More information

Wire contracts for AuditService: AuditRecordRequest, AuditReply, AuditReceipt, their enums, and the audit exchange/queue names. No dependencies beyond the BCL.

Client for AuditService's two delivery modes: IAuditClient.RecordAsync (Required — audit-before-act, fail-closed request-reply) and IAuditOutbox.Enqueue + IAuditClient.ConfirmAsync (Guaranteed — outbox inside... More information

Shared engine for Onspay.Infrastructure.Inbox/Outbox: MessageProcessingJobBase (Quartz + Dapper polling with FOR UPDATE SKIP LOCKED, retry with exponential backoff), IProcessingScopeProvider (single scope by... More information

Dependency-free tenancy contracts: ICurrentTenantContext (+ AsyncLocal CurrentTenantContext), ITenantResolver, IActiveTenantsProvider, TenantInfo, ModuleCode. Reference this instead of... More information