softwaremill/elasticmq
Elasticmq
ElasticMQ is an Amazon SQS mock server and emulator designed for local development and testing of asynchronous messaging logic without requiring cloud connectivity. It provides a local messaging test tool that mimics cloud-based messaging infrastructure to verify message producer and consumer behavior.
The project can be deployed as a standalone service or as an embedded emulator that runs directly within a Java application process to remove external dependencies. It includes a web-based queue management interface for monitoring queue statistics and managing messages visually.
The system supports in-memory message storage with optional file-based state persistence to maintain data consistency across restarts. It also provides server health checks and exposes internal metrics via management beans for external monitoring.
Features
- Cloud Service Emulators - Acts as a local cloud service emulator by mimicking Amazon SQS behavior and APIs.
- Messaging Broker Emulators - Implements an in-memory messaging broker emulator for testing logic without external infrastructure.
- In-Memory Queues - Utilizes in-memory queues for high-performance local emulation of messaging services.
- Local SQS Development - Enables developing and testing SQS-dependent applications without needing cloud connectivity or accounts.
- Embedded Queue Servers - Supports running the queue server directly within the application to eliminate external dependencies.
- Embedded Messaging Infrastructure - Integrates a lightweight SQS-compatible queue directly into Java applications to simplify developer setup.
- Queue Emulation - Provides standalone and embedded interfaces that mimic cloud messaging services for local development.
- Messaging Test Tools - Provides a tool for verifying asynchronous messaging logic using an SQS-compatible interface.
- Embedded Server Runtimes - Provides an embedded server runtime that allows the queue to run within the application process.
- API Emulators - Implements API emulators that mimic cloud service endpoints for seamless local development.
- Cloud Service Mock Servers - Provides a standalone mock server that emulates Amazon SQS for local development.
- Integration Testing - Facilitates integration testing of producer and consumer logic against a local SQS emulator.
- Interfaces - Ships a web-based interface for monitoring queue statistics and managing messages visually.
- Message Queue Dashboards - Provides a web-based dashboard for visualizing queue depths and managing messages.
- Message Queue Management Interfaces - Provides a web-based user interface to display real-time queue statistics and manage messages visually.
- Queue and Log Persistence - Saves the task queue and metadata to disk to ensure state survives system restarts.
- File-Based Persistence - Implements file-based state persistence to maintain queue metadata and messages across restarts.
