Today we are releasing [MeiliES](https://github.com/meilisearch/MeiliES), our event store which is fully implemented in Rust.

Event sourcing is a way to _"Capture all changes to an application state as a sequence of events"_ as [Martin Fowler describes it](https://martinfowler.com/eaaDev/EventSourcing.html). The first purpose of the server is to publish events of a stream to subscribed clients. A client can also specify from which event number it wants to read, therefore it is possible to recover from a crash by rebuilding a state with new events only.

Since [a message queue is not made for event-sourcing](https://medium.com/serialized-io/apache-kafka-is-not-for-event-sourcing-81735c3cf5c), there are few available applications for event sourcing: the main option being [EventStore](https://eventstore.org/), an event sourcing database made in C#.  
So we began using EventStore for our event sourcing needs and ran against some troubles:

*   Portability: EventStore is built with C# and uses mono, making it quite difficult to install and run on UNIX
*   Support: We asked for information about EventStore commercial support and never got any response
*   Stability: the Rust client is not production-ready, and despite making some merge-requests there was still a lot to do while many of the available features were not useful to us.

So we decided to implement our own event store to resolve these issues.

MeiliES is an _Event Sourcing database_ that uses the _RESP_ (REdis Serialization Protocol) to communicate. We use the Redis protocol to simplify clients implementation. The portability problematics are resolved by using a full Rust implementation (we are using [Sled as internal storage](https://github.com/spacejam/sled)).

Installation is as simple as doing a `cargo build --release`. If you do not want to clone the repository you can [download the binaries from the Azure pipeline](https://dev.azure.com/thomas0884/thomas/_build) or run it using docker `docker run -p 6480:6480 --rm getmeili/meilies:latest`.

If you have any questions regarding MeiliES, you can tweet [@meilisearch](https://twitter.com/meilisearch) or make an [issue on GitHub](https://github.com/meilisearch/MeiliES) 🎉

MeiliES - Event sourcing in Rust

It is never easy to start a blog, we never know what to say on the first blog post 😱 so I will keep it simple here.

We are Meili, a team of three developers. In our previous job we worked on building a search engine aiming for the best end-user experience.

The most common alternatives were Algolia or ElasticSearch. Where the first one is only available as a service, you hand over your data and could be expensive. The second one is overkill for a simple end-user search,  complicated to setup and configure.

So here came our idea to develop [an open source alternative](https://github.com/meilisearch/MeiliDB) to Algolia, easy to setup, lightweight and fast.

So...

...Welcome on our blog! 🎉

I expect we will use it as often as possible to talk about what we build, company news and various thoughts.

  
(I just hope I won't be the only reader of this blog 🤭)

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MeiliES - Event sourcing in Rust

Starting our blog