Akka libraries overview

Akka provides a set of libraries for building and running responsive applications. Key libraries and resources are outlined to help you get started.

TIP: Find the latest Akka library versions at Akka library versions.

Start Learning

• First example: Create a simple “Hello world!” example.

• Get started guide: Learn Akka fundamentals with an IoT project.

• Microservices guide: Build resilient and scalable microservices.

Foundations

• Actors: A model for concurrency and distribution without all the pain of threading primitives.

• Streams: An intuitive and safe way to do asynchronous, non-blocking, backpressured stream processing.

• Event Sourcing: Enables stateful actors to persist their state changes, so that the state can be recovered when an actor is restarted.

• Durable State: Enables stateful actors to persist their latest state, so that it can be recovered when an actor is restarted.

• Projections: Build a projected model out of streams of events.

Communication and Integrations

• HTTP: Modern, fast, asynchronous, streaming-first HTTP server and client.

• gRPC: Build typed, streaming gRPC services.

• Alpakka: Streaming integrations with Kafka and other technologies.

• Akka Persistence R2DBC: Use Postgres-compatible databases with Akka Persistence.

• Cassandra Persistence: Use Cassandra databases with Akka Persistence.

Resilience and Distribution

• Cluster: Boost resilience with distribution across multiple nodes.

• Cluster Sharding: Distribute actors across your cluster.

• Distributed Data: Eventually consistent, low latency data.

Architecture

• Distributed Cluster: Connect Akka services built on Akka libraries across geographical locations for lower latency and higher availability.

• Edge: Move your endpoints to the edge of the cloud for lower latency and higher availability. Akka Edge Rust extends the power of Akka’s event-driven model to resource-constrained devices.

Operations and Observability

• Management: Extensions for operating Akka on cloud providers and Kubernetes.

• Diagnostics: Identify configuration and operational issues in your Akka application.

• Insights: Intelligent monitoring and observability purpose-built for Akka.