kurrent-io/samples

A new .NET sample project has been added to demonstrate the Crypto Shredding pattern for protecting sensitive data in event-sourced systems. The implementation includes a \JsonSerializer\ that automatically encrypts or decrypts fields marked with \\[PersonalData\]\ attributes, using an \EncryptorDecryptor\ to manage encryption keys in a \CryptoRepository\. The sample integrates with EventStoreDB, providing a complete flow for persisting, retrieving, and securely handling personal identifiable information (PII) in events.

_Crypto\_Shredding, Crypto\Shredding/Dotnet · high confidence

New quickstart samples have been added for .NET, Go, Java, Node.js, Python, and Rust. Each sample provides a Dockerized, Hello World application that connects to EventStoreDB, appends a visitor event to a stream, and reads back the full stream to display all greeted visitors. The samples include all necessary configuration files (Dockerfiles, docker-compose.yml, READMEs) to run the applications locally.

Quickstart · high confidence

A new Java Spring Boot sample application has been added to the quickstart directory, providing a complete 'Hello World' example. The project includes a Spring configuration class to register the EventStoreDB client as a bean, a main application class that registers a Gson mapper bean, and a REST controller that demonstrates writing and reading events from EventStoreDB using JSON serialization. Configuration files for the server port and logging are also included.

Quickstart/Java/esdb-sample-springboot · high confidence

The LoanApplication/Python directory now contains a complete sample implementation of a loan processing system. This includes Python scripts for handling loan requests, credit checks, loan decisions, and manual underwriting, along with JavaScript projections and a shell script to set them up. A key addition is the integration of AI (OpenAI) to provide automated recommendations and summaries for underwriters, configurable via the new config.py file.

LoanApplication/Python · high confidence

Introduced a new Java sample application demonstrating an e-commerce shopping cart implementation using CQRS and event sourcing with EventStoreDB. The sample includes the core infrastructure for event handling, including an \EventBus\ for publishing domain events, an \AggregateStore\ for persisting aggregate state to EventStoreDB streams, and a background worker to subscribe to all events and update projections. It also provides the \ShoppingCart\ aggregate, a \ShoppingCartService\ for command handling, and a REST controller to expose the shopping cart API. The sample also features a \ProductPriceCalculator\ for pricing logic and JPA-based projections to maintain read models.

_CQRS\_Flow/Java/event-sourcing-esdb-aggregates, CQRS\Flow/Java/event-sourcing-esdb-simple · high confidence

Added sample configurations for sending EventStoreDB logs to the Elastic Stack, including ready-to-use Docker Compose setups and configuration files for Logstash, Filebeat, and a combined Filebeat with Logstash pipeline. Each sample includes a README explaining the setup, a docker-compose file to spin up the necessary services (Elasticsearch, Kibana, and the chosen log collector), and the specific configuration files (e.g., logstash.conf, filebeat.yml) required to route logs from EventStoreDB to Elasticsearch with Kibana data views.

Logging · high confidence

The CQRS\_Flow area now includes a complete Carts API and domain implementation. The API exposes endpoints to initialize a shopping cart, add or remove products, and confirm a cart. The domain logic handles cart state transitions (Pending, Confirmed) and product item management. Additionally, unit and acceptance tests have been added to verify the cart initialization, product addition/removal, and confirmation workflows.

_CQRS\Flow · high confidence

Added build and dependency configuration files for sample applications across multiple languages. For .NET, new .csproj files define project references and package dependencies (e.g., xUnit, NSubstitute, Swashbuckle) for the CQRS and Crypto Shredding samples. For Java, new build.gradle and pom.xml files configure Spring Boot, EventStoreDB clients, and JPA dependencies. For Node.js, a package.json and lockfile specify the @eventstore/db-client and Express dependencies. For Go, a go.mod file adds the EventStoreDB client and Gin framework. For Rust, a Cargo.toml and lockfile define the eventstore and rocket dependencies. These changes establish the build environment for each sample.

(dependencies) · high confidence

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

• CAI 51 → 51 (-0.4)
• Rubric changed (rubric-2026.08.18 → rubric-2026.09.15) — scores are not directly comparable.

• Code Health 94 → 93 (-0.7)
• Architecture 94 → 94 (+0.0)
• Maturity 39 → 62 (+23.8)
• Readiness 43 → 41 (-1.5)
• Security 70 → 68 (-2.3)
• Domain Modelling 100 → 46 (-53.6)
• Event Sourcing 100 → 100 (+0.0)
• Performance 74 → 74 (+0.0)

• Bounded contexts not declared
• Critical CVE: [GHSA redacted] (Quickstart/Go/esdb-sample-go/go.mod)
• Critical CVE: [GHSA redacted] (Quickstart/Python/esdb-sample-python/requirements.txt)
• Critical CVE: [GHSA redacted] (Quickstart/Go/esdb-sample-go/go.mod)
• Critical CVE: [GHSA redacted] (Quickstart/Nodejs/esdb-sample-nodejs/package-lock.json)
• Dependency hygiene not measured — this repository's dependencies are not NuGet
• Duplicated block (19 lines × 2) (CQRS_Flow/Dotnet/Carts/Carts/Carts/Cart.cs)
• High CVE: [GHSA redacted] (Quickstart/Python/esdb-sample-python/requirements.txt)
• High CVE: [GHSA redacted] (Quickstart/Nodejs/esdb-sample-nodejs/package-lock.json)
• High CVE: [GHSA redacted] (Quickstart/Nodejs/esdb-sample-nodejs/package-lock.json)
• High CVE: [GHSA redacted] (Quickstart/Rust/esdb-sample-rust/Cargo.lock)
• High CVE: [GHSA redacted] (Quickstart/Python/esdb-sample-python/requirements.txt)
• High CVE: [GHSA redacted] (Quickstart/Nodejs/esdb-sample-nodejs/package-lock.json)
• High CVE: [GHSA redacted] (Quickstart/Rust/esdb-sample-rust/Cargo.lock)
• High vulnerability: [GHSA redacted] (Quickstart/Rust/esdb-sample-rust/Cargo.lock)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• High: security finding (details withheld)
• …and 40 more

• Critical CVE: [GHSA redacted] (Quickstart/Go/esdb-sample-go/go.mod)
• Critical CVE: [GHSA redacted] (Quickstart/Python/esdb-sample-python/requirements.txt)
• Critical CVE: [GHSA redacted] (Quickstart/Go/esdb-sample-go/go.mod)
• Critical CVE: [GHSA redacted] (Quickstart/Nodejs/esdb-sample-nodejs/package-lock.json)
• Documentation: no installation or build instructions (README.md)
• Documentation: no project overview (README.md)
• Duplicated block (10 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/shoppingcarts/productitems/PricedProductItem.java)
• Duplicated block (11 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/core/serialization/EventSerializer.java)
• Duplicated block (11 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/shoppingcarts/productitems/ProductItems.java)
• Duplicated block (12 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/shoppingcarts/productitems/ProductItems.java)
• Duplicated block (13 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/core/serialization/EventSerializer.java)
• Duplicated block (16 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/shoppingcarts/ShoppingCartService.java)
• Duplicated block (17 lines × 4) (CQRS_Flow/Dotnet/Carts/Carts/Carts/Cart.cs)
• Duplicated block (18 lines × 2) (CQRS_Flow/Dotnet/Carts/Carts/Carts/Cart.cs)
• Duplicated block (19 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/shoppingcarts/gettingbyid/ShoppingCartDetailsProjection.java)
• Duplicated block (20 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/core/aggregates/AggregateStore.java)
• Duplicated block (20 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/core/events/EventEnvelope.java)
• Duplicated block (20 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/core/projections/JPAProjection.java)
• Duplicated block (20 lines × 2) (CQRS_Flow/Java/event-sourcing-esdb-aggregates/src/main/java/io/eventdriven/ecommerce/shoppingcarts/gettingbyid/GetShoppingCartById.java)
• Duplicated block (21 lines × 2) (CQRS_Flow/Dotnet/Carts/Carts/Carts/Cart.cs)
• …and 143 more

• Unchanged — 9 HTTP endpoints

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

kurrent-io/samples was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point a surveyor at a repository you know and see whether you agree with it.