Equinox Tutorial

Practical example for learning how to model a bi-temporal domain using Jet.com's Equinox Event Sourcing Platform.

Features

Bi-temporal, event sourced API in F# using Jet.com's Equinox platform and gRPC 🌌.
Protobuf files compiled with Uber's Prototool 🔧.
Fully typed GraphQL API using FSharp.Data.GraphQL 🎆.
Centralized logging with Seq 📜.
Web application using React and TypeScript 💻.
Fully Dockerized for fast local development 🐳.
Integration tests and example CI using GitHub Actions ⚡.
Build automation using FAKE 🔨.

The domain model is a lease, such as a car lease. A more detailed explanation about the motivation for modeling a bi-temporal domain can be found in the accompanying blog post.

TL;DR

docker-compose up -d --build web-app

Endpoints:

http://localhost:2113 -> Event Store UI (database; user:admin password:changeit)
http://localhost:8081 -> Seq UI (logging)
http://localhost:3000 -> Web application

Structure

equinox-tutorial
├── README.md           --> You are here
├── .github             --> CI/CD
├── docker-compose.yml  --> Dockerization
├── web-app             --> Web application
├── graphql-api         --> GraphQL API
├── lease-api           --> Lease gRPC API (business logic)
└── protos              --> Protobuf files

Screenshots

Application

GraphQL Playground

Seq Logs

Event Store

Time Travel

Resources

About

Tutorial for Jet.com Equinox library

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