Axon Framework

Axon Framework is a Java framework for building event-driven microservices using CQRS (Command Query Responsibility Segregation) and event sourcing patterns, providing the building blocks to implement scalable and maintainable distributed systems.

1 APIs 8 Features

CQRSEvent SourcingEvent-DrivenJavaMessagingMicroservices

APIs

Axon Framework

Axon Framework is a Java framework for building event-driven microservices using CQRS and event sourcing patterns, providing infrastructure components for command handling, even...

Collections

Axon Server REST API

OPEN

Pricing Plans

Axon Framework Plans Pricing

3 plans

PLANS

Rate Limits

Axon Framework Rate Limits

5 limits

RATE LIMITS

FinOps

Axon Framework Finops

FINOPS

Features

CQRS Pattern

Separate command and query models for scalable, maintainable architecture.

Event Sourcing

Store application state as a sequence of events for full audit trail and time-travel debugging.

Domain-Driven Design

First-class support for DDD patterns including aggregates, sagas, and bounded contexts.

Axon Server Integration

Zero-configuration event store and message router with Axon Server.

Distributed Systems Support

Built-in routing for commands, events, and queries across distributed services.

Spring Boot Integration

Seamless Spring Boot auto-configuration for rapid application development.

Testing Support

Built-in testing fixtures for validating aggregate behavior without infrastructure.

Saga Management

Manage long-running business processes with durable saga state.

Use Cases

Microservices Architecture

Build event-driven microservices with reliable message routing.

Audit Trail

Maintain complete audit trails by storing all state changes as events.

Temporal Queries

Reconstruct system state at any point in time from the event store.

Collaborative Domains

Build complex collaborative domains with CQRS separation.

Workflow Automation

Automate multi-step business workflows with event-driven sagas.

Integrations

Spring Boot

Auto-configuration and starter dependency for Spring Boot integration.

Apache Kafka

Route events through Kafka as an alternative to Axon Server.

RabbitMQ

Route commands and events through AMQP with RabbitMQ extension.

JPA/Hibernate

Persist saga state and event-sourced entities with JPA.

Micrometer

Expose framework metrics via Micrometer for Prometheus and Grafana.

Semantic Vocabularies

Axon Framework Context

10 classes · 0 properties

JSON-LD

API Governance Rules

Axon Framework API Rules

5 rules · 3 errors 1 warnings 1 info

0 properties

3 fields

EXAMPLE

Resources

Sources

opencollection: 1.0.0
info:
  name: Axon Server REST API
  version: 4.9.0
items:
- info:
    name: Events
    type: folder
  items:
  - info:
      name: Axon Framework - List Events
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/events'
      params:
      - name: context
        value: ''
        type: query
      - name: trackingToken
        value: ''
        type: query
      - name: numberOfEvents
        value: ''
        type: query
    docs: Returns events from the event store with optional filtering.
  - info:
      name: Axon Framework - Append an Event
      type: http
    http:
      method: POST
      url: '{baseUrl}/v1/events'
      params:
      - name: context
        value: ''
        type: query
      body:
        type: json
        data: '{}'
    docs: Appends a new event to the event store.
  - info:
      name: Axon Framework - Get Events for an Aggregate
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/events/aggregates/:aggregateId'
      params:
      - name: aggregateId
        value: ''
        type: path
      - name: context
        value: ''
        type: query
      - name: initialSequence
        value: ''
        type: query
    docs: Returns all events for a specific aggregate.
- info:
    name: Snapshots
    type: folder
  items:
  - info:
      name: Axon Framework - Get Snapshots for an Aggregate
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/snapshots/:aggregateId'
      params:
      - name: aggregateId
        value: ''
        type: path
      - name: context
        value: ''
        type: query
    docs: Returns snapshots for a specific aggregate.
  - info:
      name: Axon Framework - Append a Snapshot
      type: http
    http:
      method: POST
      url: '{baseUrl}/v1/snapshots/:aggregateId'
      params:
      - name: aggregateId
        value: ''
        type: path
      - name: context
        value: ''
        type: query
      body:
        type: json
        data: '{}'
    docs: Appends a new snapshot for an aggregate.
- info:
    name: Commands
    type: folder
  items:
  - info:
      name: Axon Framework - List Command Handlers
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/commands'
      params:
      - name: context
        value: ''
        type: query
    docs: Returns registered command handlers and their routing information.
- info:
    name: Queries
    type: folder
  items:
  - info:
      name: Axon Framework - List Query Handlers
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/queries'
      params:
      - name: context
        value: ''
        type: query
    docs: Returns registered query handlers.
- info:
    name: Contexts
    type: folder
  items:
  - info:
      name: Axon Framework - List Contexts
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/context'
    docs: Returns all application contexts.
  - info:
      name: Axon Framework - Create a Context
      type: http
    http:
      method: POST
      url: '{baseUrl}/v1/context'
      body:
        type: json
        data: '{}'
    docs: Creates a new application context.
  - info:
      name: Axon Framework - Get a Context
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/context/:contextName'
      params:
      - name: contextName
        value: ''
        type: path
    docs: Returns details of a specific context.
  - info:
      name: Axon Framework - Delete a Context
      type: http
    http:
      method: DELETE
      url: '{baseUrl}/v1/context/:contextName'
      params:
      - name: contextName
        value: ''
        type: path
    docs: Deletes an application context.
- info:
    name: Applications
    type: folder
  items:
  - info:
      name: Axon Framework - List Applications
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/applications'
      params:
      - name: context
        value: ''
        type: query
    docs: Returns all registered applications (connected clients).
- info:
    name: Users
    type: folder
  items:
  - info:
      name: Axon Framework - List Users
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/users'
    docs: Returns all Axon Server users.
  - info:
      name: Axon Framework - Create a User
      type: http
    http:
      method: POST
      url: '{baseUrl}/v1/users'
      body:
        type: json
        data: '{}'
    docs: Creates a new Axon Server user.
  - info:
      name: Axon Framework - Delete a User
      type: http
    http:
      method: DELETE
      url: '{baseUrl}/v1/users/:username'
      params:
      - name: username
        value: ''
        type: path
    docs: Deletes an Axon Server user.
- info:
    name: Cluster
    type: folder
  items:
  - info:
      name: Axon Framework - Get Cluster Information
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/cluster'
    docs: Returns information about the Axon Server cluster.
  - info:
      name: Axon Framework - Remove a Node from the Cluster
      type: http
    http:
      method: DELETE
      url: '{baseUrl}/v1/cluster/:nodeName'
      params:
      - name: nodeName
        value: ''
        type: path
    docs: Removes a node from the Axon Server cluster.
- info:
    name: Event Processors
    type: folder
  items:
  - info:
      name: Axon Framework - List Event Processors
      type: http
    http:
      method: GET
      url: '{baseUrl}/v1/processors'
      params:
      - name: context
        value: ''
        type: query
    docs: Returns all tracking event processors and their status.
  - info:
      name: Axon Framework - Pause an Event Processor
      type: http
    http:
      method: PATCH
      url: '{baseUrl}/v1/processors/:processorName/pause'
      params:
      - name: processorName
        value: ''
        type: path
      - name: context
        value: ''
        type: query
      - name: tokenStoreIdentifier
        value: ''
        type: query
    docs: Pauses a tracking event processor.
  - info:
      name: Axon Framework - Start an Event Processor
      type: http
    http:
      method: PATCH
      url: '{baseUrl}/v1/processors/:processorName/start'
      params:
      - name: processorName
        value: ''
        type: path
      - name: context
        value: ''
        type: query
      - name: tokenStoreIdentifier
        value: ''
        type: query
    docs: Starts a paused tracking event processor.
bundled: true