Packages

The framework is split into focused NuGet packages so you only take what you need.

Core packages

Package	Description
Deveel.Events.Annotations	Attributes for describing event metadata on your data classes
Deveel.Events.Publisher	Core publisher infrastructure (EventPublisher, EventPublisherBuilder, DI helpers)

Channel packages

Package	Description
Deveel.Events.Publisher.AzureServiceBus	Publish events to an Azure Service Bus queue or topic
Deveel.Events.Publisher.RabbitMq	Publish events to a RabbitMQ exchange
Deveel.Events.Publisher.MassTransit	Publish events through a MassTransit bus
Deveel.Events.Publisher.Webhook	Deliver events to HTTP webhook endpoints
Deveel.Events.Publisher.Outbox	Persist events to a transactional outbox for later relay
Deveel.Events.Publisher.Outbox.EntityFramework	Entity Framework Core repository and helpers for the outbox channel
Deveel.Events.Amqp.Annotations	AMQP-specific attributes (exchange name, routing key)

Subscriptions package

Package	Description
Deveel.Events.Subscriptions	In-process event subscription registry and dispatcher

Schema packages

Package	Description
Deveel.Events.Schema	Core schema model, fluent builder, JSON writer, and schema validation
Deveel.Events.Schema.Yaml	Export an event schema as a YAML document
Deveel.Events.Schema.AsyncApi	Export schemas as an AsyncAPI 2.x document (JSON or YAML)

Test package

Package	Description
Deveel.Events.TestPublisher	In-memory test channel and helpers for unit tests

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Package Details

Deveel.Events.Annotations

Contains the [Event] and [EventProperty] attributes used to annotate data-transfer classes with event type metadata. No dependencies except the .NET BCL.

dotnet add package Deveel.Events.Annotations

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Deveel.Events.Publisher

The heart of the framework. Provides:

• EventPublisher
• IEventPublishChannel and IBatchEventPublishChannel
• EventPublisherBuilder for fluent DI registration
• IEventFactory, IEventIdGenerator, and IEventSystemTime extensibility points
• EventPublisherOptions for global defaults
• named publisher pipelines resolved through keyed DI

dotnet add package Deveel.Events.Publisher

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Deveel.Events.Publisher.AzureServiceBus

Azure Service Bus channel implementation. Serialises CloudEvent objects as ServiceBusMessage instances and sends them to a configured queue or topic.

dotnet add package Deveel.Events.Publisher.AzureServiceBus

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Deveel.Events.Publisher.RabbitMq

RabbitMQ channel implementation using the official RabbitMQ.Client library. Supports AMQP exchange/routing-key annotations, publisher confirms, and persistent messages.

dotnet add package Deveel.Events.Publisher.RabbitMq

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Deveel.Events.Publisher.MassTransit

Wraps MassTransit's IPublishEndpoint / ISendEndpointProvider so events can be routed through any MassTransit-supported transport.

dotnet add package Deveel.Events.Publisher.MassTransit

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Deveel.Events.Publisher.Webhook

Delivers events over HTTP to a webhook endpoint. Features HMAC signing (SHA-256/384/512), exponential-backoff retries, configurable headers, and pluggable serialisers.

dotnet add package Deveel.Events.Publisher.Webhook

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Deveel.Events.Publisher.Outbox

Implements the transactional outbox pattern for event publishing. It adds the AddOutbox<TMessage>() builder entry point, outbox relay services, repository abstractions, and message-factory hooks for persisting events before relaying them to a transport-specific publisher pipeline.

dotnet add package Deveel.Events.Publisher.Outbox

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Deveel.Events.Publisher.Outbox.EntityFramework

Adds Entity Framework Core integration for the outbox channel, including DbOutboxMessage, OutboxDbContext, and the WithEntityFramework() registration helper that wires an IOutboxMessageRepository<TMessage> backed by EF Core.

dotnet add package Deveel.Events.Publisher.Outbox.EntityFramework

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Deveel.Events.Amqp.Annotations

Adds [AmqpExchange] and [AmqpRoutingKey] attributes to let you declare per-event-type AMQP routing metadata directly on your data classes. See RabbitMQ — AMQP Annotations for usage details.

dotnet add package Deveel.Events.Amqp.Annotations

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Deveel.Events.Subscriptions

Adds an in-process event subscription registry and dispatcher middleware to the EventPublisher pipeline. Includes:

• IEventSubscription and EventSubscription — the subscription model
• IEventSubscriptionRegistry — default in-memory registry
• IEventSubscriptionResolver — extensibility point for database- or remote-backed resolvers
• EventDispatcher — middleware that queries resolvers and invokes matched handlers
• EventFilter / EventFilterBuilder — composable FilterExpression factory for envelope and data-payload filtering

dotnet add package Deveel.Events.Subscriptions

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Deveel.Events.Schema

Core schema model. Includes EventSchema, EventSchemaBuilder (fluent API), EventSchemaCreator (reflection-based), IEventSchemaFactory, IEventSchemaWriter, and IEventSchemaValidator.

dotnet add package Deveel.Events.Schema

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Deveel.Events.Schema.Yaml

Adds EventSchemaYamlWriter, which serialises an IEventSchema to a YAML stream using YamlDotNet.

dotnet add package Deveel.Events.Schema.Yaml

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Deveel.Events.Schema.AsyncApi

Exports single or multiple event schemas as a complete AsyncAPI 2.x document (JSON or YAML).

dotnet add package Deveel.Events.Schema.AsyncApi

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Deveel.Events.TestPublisher

An in-memory publish channel for use in unit and integration tests. Invokes a user-supplied callback whenever an event is published, so you can assert on published events without a real transport.

dotnet add package Deveel.Events.TestPublisher