EventStore/EventStore

Features

• Event-Native Databases - Stores application state as an immutable, ordered sequence of events for audit, replay, and event-driven architectures.
• Append-Only Event Logs - Stores application state as an immutable, ordered sequence of events for audit and replay.
• Projection Engines - Runs user-defined JavaScript functions within the database to transform and aggregate event streams into materialized views.
• Multi-Language gRPC Client Libraries - Provides official multi-language gRPC client libraries for Python, Node.js, Java, .NET, Go, and Rust.
• Atomic Multi-Stream Writes - Writes events to multiple streams in a single atomic operation with conditional version checks for consistency.
• Event Stores - Persists and retrieves sequences of events for state reconstruction or subscriber synchronization.
• Event Stream Implementation - Appends new events to a named stream, preserving the order and history of state changes.
• Immutable Event Appends - Appends events to an immutable log, preserving full history for event sourcing.
• Event Store gRPC Streaming - Streams persisted events to clients in real time using the gRPC protocol for event-driven processing.
• Event Streaming Databases - Persists events as immutable streams and delivers them to subscribers in real time via gRPC and HTTP.
• JavaScript Projection Functions - Runs user-defined JavaScript functions to transform and aggregate event streams into materialized views.
• Event Stream Reads - Retrieves events from a named stream in order, enabling replay or processing of past state changes.
• gRPC Connection Establishment - Ships gRPC client libraries that establish connections for event streaming operations.
• Event Store gRPC Clients - Provides official gRPC client libraries for connecting applications in multiple languages to the event store.
• Multi-Language gRPC Clients - Provides official gRPC client libraries for Python, Node.js, Java, .NET, Go, and Rust.
• gRPC Event Communication - Communicates with clients using gRPC for efficient, language-agnostic bidirectional streaming.
• Real-time Event Streams - Delivers events to subscribers in real time via gRPC and HTTP for reactive processing.
• Event Stream Subscriptions - Reads and writes event data as a continuous stream, enabling real-time processing and event-driven workflows.
• Multi-Stream Atomic Writes - Supports atomic writes to multiple streams in a single transaction with conditional version checks.
• Event-Driven Architectures - Models application state as a sequence of events, simplifying data modeling in event-driven architectures.
• Event-Driven Coordination - Coordinates distributed services through event streams for decoupled communication.
• Integrated Event Storage and Streaming - Persists events as the source of truth and streams them to consumers, ensuring data consistency across distributed services.
• Immutable Event Logs - Stores application state as an immutable, ordered sequence of events, preserving full history for audit and replay.
• Event Log Projections - Transforms and aggregates event streams into materialized views for efficient querying and reporting.
• Event-Driven Databases - Combines event storage with streaming and projection capabilities for event-driven applications.
• gRPC Event Streaming - Uses gRPC for efficient, language-agnostic bidirectional streaming and command execution.
• Kubernetes Operators - Ships a Kubernetes operator for automating cluster deployment, scaling, and recovery.
• Database Lifecycle Operators - Manages database cluster deployment, scaling, and recovery on Kubernetes via a custom operator.
• Event Store Operators - Manages the lifecycle of event store database clusters on Kubernetes, including deployment, scaling, and recovery.
• AtomPub HTTP Subscription Protocols - Delivers real-time event notifications over HTTP using the Atom Syndication Format.
• Database Backup and Restore - Provides procedures for creating backups of cluster data and restoring from them for failure recovery.
• Event Stream Connectors - Provides built-in connectors that stream events to traditional databases and data pipelines.
• Managed Event Store Platforms - Provisions and operates event store database clusters on major cloud providers through a managed service.
• Cloud Infrastructure Automation - Manages cloud resources programmatically via Terraform, Pulumi, and a CLI tool.
• Managed Event Store Deployments - Provisions and runs event store clusters on major cloud providers as a managed service.
• SSL-Enabled Cluster Setups - Provides SSL certificate and license key configuration for secure, highly-available cluster deployments.
• Docker Container Deployments - Ships Docker container deployments for single-node and three-node secure cluster setups.
• Managed Cloud Deployments - Deploys event store clusters on AWS, Azure, or GCP as a fully managed service.
• Kubernetes Deployment - Manages database lifecycle on Kubernetes using a dedicated operator.
• Persistent Subscription Reliability - Ensures subscription continuity and performance under cluster leader elections and burst load conditions.
• HTTP Event Subscription - Offers a RESTful HTTP interface with AtomPub-based subscriptions for real-time event consumption.
• Databases and Storage - Functional database with complex event processing capabilities.
• Messaging and Queuing - Functional database with complex event processing.

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