The open-source, functional database with Complex Event Processing in JavaScript.

This is the repository for the open source version of Event Store, which includes the clustering implementation for high availability.

Information on support and commercial tools such as LDAP authentication can be found here: Event Store Support.

Documentation for Event Store can be found here: Event Store Docs

We have a fairly active google groups list. If you prefer slack, there is also an #eventstore channel in the DDD-CQRS-ES slack community.

The latest release packages are hosted in the downloads section on the Event Store website: Event Store Downloads

We also host native packages for Linux on Package Cloud and Windows packages can be installed via Chocolatey (4.0.0 onwards only).

Event Store is written in a mixture of C#, C++ and JavaScript. It can run on Windows, Linux and macOS using the .NET Core runtime. However, the projections library (which uses the V8 javascript engine) contains platform specific code and it must be built for the platform on which you intend to run it.

Prerequisites

• .NET Core SDK 3.1

Once you've installed the prerequisites for your system, you can launch a Release build of EventStore as follows:

dotnet build -c Release src/EventStore.sln -f netcoreapp3.1 -r <runtime identifier>

where <runtime identifier> needs to be replaced by the RID of the platform you want to build for.

The build scripts: build.sh and build.ps1 are also available for Linux/macOS and Windows respectively to simplify the build process.

To start a single node, you can then run:

dotnet bin/Release/EventStore.ClusterNode/netcoreapp3.1/<runtime identifier>/EventStore.ClusterNode.dll --db /path/to/db --log /path/to/logs

Note: The build system has changed after version 5.0.5, therefore the above instructions will not work for older releases.

You can launch the tests as follows:

dotnet test src/EventStore.sln

You can build the different clients by following the steps below. This will generate a nuget package file (.nupkg) that you can include in your project.

dotnet pack -c Release src/EventStore.ClientAPI/EventStore.ClientAPI.csproj /p:Version=6.0.0

dotnet pack -c Release src/EventStore.Grpc/EventStore.Grpc.csproj /p:Version=6.0.0

dotnet pack -c Release src/EventStore.ClientAPI.Embedded/EventStore.ClientAPI.Embedded.csproj /p:Version=6.0.0

The web UI repository is a git submodule of the current repository located under src/EventStore.UI.

The web UI is prebuilt and the files are located in src/EventStore.ClusterNode.Web/clusternode-web. However, if you still want to build the latest web UI, there is a parameter in the build.sh ([<build_ui=yes|no>]) and build.ps1 (-BuildUI) scripts to allow you to do so.

The list of precompiled projections libraries can be found in src/libs/x64. If you still want to build the projections library please follow the links below.

• Windows
• Linux
• macOS

Development is done on the master branch. We attempt to do our best to ensure that the history remains clean and to do so, we generally ask contributors to squash their commits into a set or single logical commit.

If you want to switch to a particular release, you can check out the tag for this particular version. For example:
git checkout oss-v6.0.0-preview1