Event Sourcing
📘 Resources
📕 Articles
Event Sourcing Event Sourcing and CQRS in C# Event Sourcing: Awesome, powerful & different Event Sourcing: Eventual Consistency and Responding to Events vent Sourcing: CQRS and querying using read models About event sourcing Event Sourcing pattern Event Sourcing with Azure SQL and Entity Framework Core Projections in Event Sourcing: Build ANY model you want! Reactive in practice, Unit 5: Event sourcing Reactive in practice, Unit 7: CQRS, Part 2 – ReadSideProcessor for queries and views EVENT SOURCING MICROSERVICES PATTERN Event Based Architecture: What do you mean by EVENT? Beginner’s Guide to Event Sourcing | Event Store * Snapshots in Event Sourcing | Event Store * CQRS(Command-Query Responsibility Segregation) | Event Store *Eventsourcing Patterns: Forgettable Payloads Counterexamples regarding consistency in event sourced solutions (Part 1) | Event Store Counterexamples regarding consistency in event sourced solutions (Part 2) | Event Store Counterexamples regarding consistency in event sourced solutions (Part 3) | Event Store Event Sourcing: Events Evolution, Versioning, and Migration Event-sourcing at Nordstrom: Part 1 Event-sourcing at Nordstrom: Part 2 Live projections for read models with Event Sourcing and CQRS | Event Store Event Streaming is not Event Sourcing! Overselling Event Sourcing - Alexey Zimarev ⭐MICROSERVICES .NET CORE WITH EXAMPLE — Part 4 MICROSERVICES .NET CORE WITH EXAMPLE — Part 5 Why a bank account is not the best example of Event Sourcing? Real-World CQRS/ES with ASP.NET and Redis Part 1 - Overview Real-World CQRS/ES with ASP.NET and Redis Part 2 - The Write Model Real-World CQRS/ES with ASP.NET and Redis Part 3 - The Read Model What is Event Sourcing? Event Sourcing with ASP.NET Core – 01 Store Event Sourcing with ASP.NET Core – 02 Messaging Event Sourcing applied – the application service Event Sourcing applied – the Aggregate Event sourcing revisited Reactive in practice, Unit 5: Event sourcing Event Sourcing Examined Part 1 of 3 Event Sourcing Examined Part 2 Of 3 Event Sourcing Examined Part 3 Of 3 Event immutability and dealing with change How Event Sourcing makes for a better debugging experience for developers Projections in Event Sourcing ⭐Entities as event streams Event Sourcing basics ⭐Event Sourcing and CQRS ⭐Entities as event streams ⭐Reporting models and Event Sourcing ⭐Event Sourcing and Microservices ⭐Event immutability and dealing with change How to get the current entity state from events? When not to use Event Sourcing? Revolution now! How to (not) do the events versioning? What if I told you that Relational Databases are in fact Event Stores? How to create projections of events for nested object structures? How to scale projections in the event-driven systems? Anti-patterns in event modelling - Property Sourcing Anti-patterns in event modelling - State Obsession How to build event-driven projections with Entity Framework Let’s talk about positions in event stores Simple patterns for events schema versioning ⭐How to (not) do the events versioning? How to do snapshots in Marten? Keep your streams short! Temporal modeling for fast reads and optimal data retention Integrating Marten with other systems Using strongly-typed identifiers with Marten A simple trick for idempotency handling in the Elastic Search read model Getting Started with CQRS – Part 1 Getting Started with CQRS – Part 2 Getting Started with CQRS – Part 3 Dealing with Eventual Consistency and Idempotency in MongoDB projections Global event stream Live projections for read models with Event Sourcing and CQRS DDD, CQRS and Event Sourcing in .NET Core with Weapsy.Mediator Building an Event Storage Event Sourcing: 5 things to consider when approaching it Event Sourcing pattern for microservices in .Net Core Snapshots in Event Sourcing for Rehydrating Aggregates Scalable Microservices with Event Sourcing and Redis CQRS & Event Sourcing Code Walk-Through Event Sourced Aggregate Design: Focus on Business Logic Testing your Domain when Event Sourcing Projections in Event Sourcing: Build ANY model you want! Event Sourcing Example & Explained in plain English Event Sourcing: Projections with Liquid Projections Event Sourcing with SQL Stream Store Event Stream as a Message Queue Event Store Persistent Subscriptions Event Store Persistent Subscriptions Demo Persistent subscription Event Store Subscribe to changes Migration to gRPC client Event Schema Versioning Event Sourcing: Snapshotting Convince your CTO to use Event Sourcing The Right Way - Event Sourcing done right Event Sourcing - Kamil What they don’t tell you about event sourcing Reactive Event Sourcing in Java, Part 1: Domain Reactive Event Sourcing in Java, Part 2: Actor Model Reactive Event Sourcing in Java, Part 3: Service Reactive Event Sourcing in Java, Part 4: Controller Implementing event sourcing using a relational database Read models in event-sourced systems EventStoreDB Vs Kafka Event Sourcing: Why Kafka is not suitable as an Event Store Event Versioning with Marten Slim your aggregates with Event Sourcing! Functional Event Sourcing Decider A Vision for Low Ceremony CQRS with Event Sourcing How to effectively compose your business logic CQRS + Event Sourcing – Step by Step Testing business logic in Event Sourcing, and beyond! Testing an Event Sourced Aggregate Root An Executable Specification Event Sourcing explained ⭐Essential features of an Event Store for Event Sourcing Event Sourcing Part I: Understanding what it is, core components, and common misconceptions Event Sourcing Part II: Implementing an end-to-end solution Guide to Projections and Read Models in Event Driven Architecture ⭐Event-driven projections in Marten explained Projecting Marten events to Elasticsearch Ensuring uniqueness in Marten event store Event stores are key-value databases, and why that matters How to scale out Marten Implementing Closing the Books pattern Explicit events serialisation in Event Sourcing Marten, Metrics, and Open Telemetry Support Marten, PostgreSQL, and .NET Aspire walk into a bar Why you should batch message processing and how to do it with .NET AsyncEnumerable Persistent vs catch-up, EventStoreDB subscriptions in action Filtering EventStoreDB subscriptions by event types Using event metadata in event-driven projections Event sourcing, CQRS, stream processing and Apache Kafka: What’s the connection? Event Sourcing: Why Kafka is not suitable as an Event Store
📺 Videos
📦 Libraries
Eventuous/eventuous - Minimalistic Event Sourcing library for .NETEventFlow - Async/await first CQRS+ES and DDD framework for .NEToskardudycz/GoldenEye - The CQRS flavoured framework that will speed up your WebAPI and Microservices developmentAggregateSource - Lightweight infrastructure for doing eventsourcing using aggregatesProjac - A set of .NET projection librariesAggregates.NET - .NET event sourced domain driven design model via NServiceBus and GetEventStoreCanerPatir/Algorist.EventSourcing - An event sourcing building block for .net corejet/equinox - .NET Event Sourcing library with CosmosDB, EventStoreDB, SqlStreamStore and integration test backends.revoframework/Revo - Event Sourcing, CQRS and DDD framework for C#/.NET Coregautema/cqrslite - A lightweight framework to help creating CQRS and Eventsourcing applications in C#lucabriguglia/OpenCQRS - .NET Standard framework to create simple and clean design. Advanced features for DDD, CQRS and Event Sourcing.SQLStreamStore/SQLStreamStore - Stream Store library targeting RDBMS based implementations for .NETjacqueskang/EventSourcing - .NET Core event sourcing frameworkdasiths/NEventLite - NEventLite - An extensible lightweight library for .NET that manages the Aggregate lifecycle in an Event Sourced system. Supports Event and Snapshot storage providers like EventStore/Redis or SQL Server. Built with dependency injection in mind and seamlessly integrates with AspNetCore.Eveneum/Eveneum - Event Store backed by Azure Cosmos DBSlacquer/api-blox - .NetCore & AspNetCore API Building Blocks.learningcom/Learning.EventStore - A framework for CQRS, Eventsourcing, and messaging that uses Redis pub/sub for messaging and offers event persistence in Redis, SQL Server, or PostgreSQL.liquidprojections/LiquidProjections EventStore/replicator - Real-time replication toolnstoredev/NStore IEvangelist/azure-cosmos-dotnet-repository - Wraps the .NET SDK for Azure Cosmos DB abstracting away the complexity, exposing a simple CRUD-based repository patternForrestTech/Eventus - A framework for creating updating and storing event sourced aggregates using a range of storage providers.NEventStore/NEventStore - A persistence agnostic Event Store for .NETircnelson/enjoy.cqrs - This library help you to build your applications using CQRS and Event source concepts.J-Tech-Japan/Sekiban - Sekiban - an Opinionated Event Sourcing and CQRS Framework using C#. It can store data into Azure Cosmos DB, AWS Dynamo DB or Postgres
🚀 Samples
VenomAV/EventSourcingCQRS oskardudycz/EventSourcing.NetCore - Examples and Tutorials of Event Sourcing in .NEToskardudycz/EventSourcing.NodeJS - Examples and Tutorials of Event Sourcing in NodeJSmizrael/SuperSafeBank - Sample Event Sourcing implementation with .NET CoreHands-On-Domain-Driven-Design-with-.NET-Core Aggregates.NET - .NET event sourced domain driven design model via NServiceBus and GetEventStoreeShopOnContainersDDD - Fork of dotnet-architecture/eShopOnContainers in full DDD/CQRS design using my own patternsProductContext-EventSourcing - A practical/experimental Event Sourcing application on Product Bounded Context in an e-commerceddd-and-eventsourcing-example EventStore/Webinars EventStore/samples - Samples showing practical aspect of EventStoreDB, Event Sourcingddd-by-examples/event-source-cqrs-sample - Sample ES/CQRS applicationexceptionnotfound/DotNetCqrsDemo NHadi/Pos - Sample Application DDD, Reactive Microservices, CQRS Event Sourcing Powered by DERMAYON LIBRARYoskardudycz/GoldenEye/DDD/Tickets learningcom/Learning.EventStore - A framework for CQRS, Eventsourcing, and messaging that uses Redis pub/sub for messaging and offers event persistence in Redis, SQL Server, or PostgreSQL.Reacture/FoxOffice - Sample application demonstrating how to build a distributed cloud .NET Core application based on CQRS and Event Sourcing.amolenk/CosmosEventSourcing - Example of event sourcing implemented with Cosmos DBUbiquitousLanguage/WorkshopEventSourcing - Practical event-sourcing with C# workshop repositorymadslundt/NetCoreMicroservicesSample Eventuous/dotnet-sample - Sample application using Eventuous .NEToskardudycz/EventSourcing.NetCore/Workshops/IntroductionToEventSourcing - Introduction to Event Sourcing Workshoposkardudycz/EventSourcing.JVM - Examples and Tutorials of Event Sourcing in JVM languagesAleksK1NG/Java-Spring-CRQS-Eventsourcing-Microservice - Java-Spring-CRQS-Eventsourcing-MicroserviceAleksK1NG/Java-Quarkus-Reactive-CQRS-EventSourcing - Java-Quarkus-Reactive-CQRS-EventSourcingevgeniy-khist/eventstoredb-event-sourcing - EventStoreDB is the database for Event Sourcing. This repository provides a sample of event sourced system that uses EventStoreDB as event store.evgeniy-khist/postgresql-event-sourcing - PostgreSQL is the world’s most advanced open source database. Also, PostgreSQL is suitable for Event Sourcing. This repository provides a sample of event sourced system that uses PostgreSQL as event store.Finaps/EventSourcing - Event Sourcing in .NET 6bymyslf/payment-gateway - A sample project using Hexagonal (Ports & Adapters) architecture, Event Sourcing, CQRS and DDD tactical patternssoftwaremill/reactive-event-sourcing-java RailsEventStore/ecommerce - Application with CQRS and Event Sourcing built on Rails and Rails Event StoreAleksK1NG/Kotlin-ES-CQRS-Microservice - Kotlin-ES-CQRS-Microserviceoskardudycz/EventStoreInOneHour - Repository for Live Stream “Event Store in One Hour”AntonioFalcaoJr/EDA.CleanArch.DDD.CQRS.EventSourcing - A full-stack .NET 7 EDA solutionMarkNijhof/Fohjin - This is a personal sand boxEventStore/training-advanced-dotnet mat-mcloughlin/PatientMangement - A simple example of how to build an event sourced applicationklimisa/aggregate-implementation-patterns-csharp - Aggregate implementations workshop port to C#bitloops/ddd-hexagonal-cqrs-es-eda - Complete working example of using Domain Driven Design (DDD), Hexagonal Architecture, CQRS, Event Sourcing (ES), Event Driven Architecture (EDA), Behaviour Driven Development (BDD) using TypeScript and NestJSmatt-bentley/AspNetCore.EventSourcing - Simple Event Sourcing implementation in ASP.NET with Entity Framework Core and MediatRJasperFx/CritterStackSamples - Samples using the “Critter Stack” Toolsoskardudycz/EventSourcing.JVM/tree/main/samples/event-sourcing-esdb-aggregates ⭐oskardudycz/EventSourcing.NetCore/tree/main/Sample/EventStoreDB/ECommerce ⭐oskardudycz/EventSourcing.JVM/tree/main/samples/event-sourcing-esdb-simple ⭐oskardudycz/EventSourcing.NetCore/tree/main/Sample/EventStoreDB/Simple ⭐oskardudycz/EventSourcing.NetCore/tree/main/Sample/EventsVersioning ⭐