https://github.com/akka/akka-projection
Akka Projections is intended for building systems with the CQRS pattern, and facilitate in event-based service-to-service communication.
https://github.com/akka/akka-projection
Last synced: 5 months ago
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Akka Projections is intended for building systems with the CQRS pattern, and facilitate in event-based service-to-service communication.
- Host: GitHub
- URL: https://github.com/akka/akka-projection
- Owner: akka
- License: other
- Created: 2018-10-12T08:40:21.000Z (over 7 years ago)
- Default Branch: main
- Last Pushed: 2025-06-06T05:15:40.000Z (about 1 year ago)
- Last Synced: 2025-06-06T05:25:57.926Z (about 1 year ago)
- Language: Scala
- Homepage: https://doc.akka.io/libraries/akka-projection/current/
- Size: 8.68 MB
- Stars: 103
- Watchers: 15
- Forks: 36
- Open Issues: 80
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome - akka/akka-projection - Akka Projections is intended for building systems with the CQRS pattern, and facilitate in event-based service-to-service communication. (<a name="Scala"></a>Scala)
README
Akka
====
*Akka is a powerful platform that simplifies building and operating highly responsive, resilient, and scalable services.*
The platform consists of
* the [**Akka SDK**](https://doc.akka.io/) for straightforward, rapid development with AI assist and automatic clustering. Services built with the Akka SDK are automatically clustered and can be deployed on any infrastructure.
* and [**Akka Automated Operations**](https://doc.akka.io/operations/akka-platform.html), a managed solution that handles everything for Akka SDK services from auto-elasticity to multi-region high availability running safely within your VPC.
The **Akka SDK** and **Akka Automated Operations** are built upon the foundational [**Akka libraries**](https://doc.akka.io/libraries/akka-dependencies/current/), providing the building blocks for distributed systems.
Akka Projections
================
Akka Projections provides an abstraction for consuming a stream of `Envelope` (where `Envelope` contains a payload and a trackable offset). This streams can originate from persisted events, Kafka topics, or other Alpakka connectors.
Akka Projections also provides tools to track, restart and distribute these projections.
Reference Documentation
-----------------------
The reference documentation for all Akka libraries is available via [doc.akka.io/libraries/](https://doc.akka.io/libraries/), details for the Akka Projections libraries
for [Scala](https://doc.akka.io/libraries/akka-projection/current/?language=scala) and [Java](https://doc.akka.io/libraries/akka-projection/current/?language=java).
The current versions of all Akka libraries are listed on the [Akka Dependencies](https://doc.akka.io/libraries/akka-dependencies/current/) page. Releases of the Akka Projections libraries in this repository are listed on the [GitHub releases](https://github.com/akka/akka-projection/releases) page.
License
-------
Akka is licensed under the Business Source License 1.1, please see the [Akka License FAQ](https://akka.io/bsl-license-faq).
Tests and documentation are under a separate license, see the LICENSE file in each documentation and test root directory for details.