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      This guide is ideal for beginners looking to learn about CQRS (Command Query Responsibility Segregation). It covers the benefits and core principles, as well as some misconceptions around the pattern.
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Home/Blog

Event Store blog

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      Follow this blog to stay up to date on what’s happening at Event Store:

    • News

      EventStoreDB Alpha Docker Image Release for MacBook Air M1

      Event Store has some amazing Team Members who go above and beyond to get the most out of EventStoreDB, and make it a better...
      Steph Gill  |  27 September 2021
    • News

      Event Sourcing Live

      Event Sourcing Live is taking place virtually from 7-8 October 2021. Everyone at Event Store is excited about the conference....
      Steph Gill  |  20 September 2021
      • Event Sourcing
      • EventStoreDB
      • Event Store Cloud
      • Event Store
    • Articles

      Announcing EventStore Client for Dart

       
      Kenneth Gulbrandsøy  |  20 September 2021
      • EventStoreDB
      • Client
      • gRPC
      • Dart client
      • C#
      • Flutter
    • Release Notes

      5.0.11 Release Notes

      We are pleased to announce the release of EventStoreDB 5.0.11 for the following operating systems:
      Hayley Campbell  |  27 August 2021
      • v5
      • Documentation
      • Release Notes
    • Articles

      Protecting Sensitive Data in Event-Sourced Systems with Crypto Shredding

      As opposed to more traditional systems where the state is persisted in a database and where CRUD operations are exposed to mutate...
      Diego Martin  |  12 August 2021
      • EventStoreDB
      • Guest post
      • Crypto
      • Shredding
      • GDPR
    • Release Notes

      20.10.4 Release Notes

      We are pleased to announce the official release of EventStoreDB 20.10.4 for the following operating systems:
      Hayley Campbell  |  11 August 2021
      • v20.10
      • Release Notes
    • Tutorials

      Building A NestJS Web Application With EventStoreDB

      Event sourcing can seem overwhelming at first. It's a paradigm shift from the classic RDBMS style of storing and querying data....
      James Hickey  |  05 August 2021
      • EventStoreDB
      • Guest post
    • News

      NodeJS gRPC client version 2.0.0 is out!

      Recently, we have been focused on making our NodeJS gRPC client even more robust and stable. To achieve this, we had to introduce...
      Oskar Dudycz  |  04 August 2021
      • Nodes
      • v2
      • NodeJS
      • gRPC
    • Articles

      Testing Event Sourced applications, part 1: some theory

      Introduction There is a lot of content already available on how to model and implement event-sourced systems. There are also...
      Yves Lorphelin  |  03 August 2021
      • CQRS
      • Event Sourcing
      • Testing
    • Articles

      Bloom Filters in EventStoreDB

      How many new streams can be created per second in EventStoreDB?
      Tim Coleman  |  30 July 2021
      • Event Store
      • Events
    • Articles

      Snapshotting Strategies

      Looking at resources from the Internet, you may conclude that snapshots are an essential part of the Event Sourcing system. It...
      Oskar Dudycz  |  16 July 2021
      • EventStoreDB
      • Snapshot
    • Articles

      How to get the current entity state from events?

        In Event Sourcing, the application state is stored in events. When we add an event, it is placed at the end of a structure...
      Oskar Dudycz  |  15 July 2021
      • Event Sourcing
    • News

      EventStoreDB 21.6: stability, performance, and strategic importance

      June is here and, as planned, EventStore 21.6 has been shipped. It is a substantial release containing important usability,...
      Mat McLoughlin  |  14 July 2021
      • EventStoreDB
      • Event Store
      • v21.6
    • Articles

      Counterexamples regarding consistency in event sourced solutions (Part 4)

      In Part 3 we looked at a counter-example rooted in the lack of a clear 'source' for transitions of data. Having competing sources...
      Julian May  |  05 July 2021
      • EventStoreDB
      • Guest post
    • Articles

      Counterexamples regarding consistency in event sourced solutions (Part 3)

      In Part 2 we looked at two counterexamples, one related to failing projections, and another about how not to propagate domain...
      Julian May  |  04 July 2021
      • EventStoreDB
      • Guest post
    • Articles

      Counterexamples regarding consistency in event sourced solutions (Part 2)

      In Part 1 the introduction talked about certain blind-spots we may have, when getting into event sourcing. We also covered the...
      Julian May  |  03 July 2021
      • EventStoreDB
      • Guest post
    • Articles

      Counterexamples regarding consistency in event sourced solutions (Part 1)

      Some mistakes can easily be prevented, by knowing how to avoid them. Some things may seem implicit and obvious to some people,...
      Julian May  |  02 July 2021
      • EventStoreDB
      • Guest post
    • Release Notes

      21.6.0 Release Notes

      We are pleased to announce the official release of EventStoreDB 21.6.0 for the following operating systems:
      Hayley Campbell  |  01 July 2021
      • Release Notes
      • v21.6
    • Articles

      Getting started with Elixir and EventStoreDB with the Spear gRPC client

      Elixir is a dynamic, functional language built on the Erlang VM. Elixir has powerful built-in abstractions for writing reactive,...
      Michael Davis  |  15 June 2021
      • EventStoreDB
      • Guest post
      • Elixir
      • Client
    • Videos

      Event Store Conversations hosted by Yves Lorphelin

      Yves Lorphelin has started a series of videos on YouTube called Event Store Conversations. Each Conversation is with a member of...
      Steph Gill  |  14 June 2021
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