boyneyy123

Hi HN,

Three years ago, I was struggling to keep track of the events and services in a growing event-driven system at an organization I was working at.

No events were documented, and we fell into a big ball of mud... (easy to do! with event architecture IMO)

2021 Christmas I started building EventCatalog as a weekend project to solve that — and it slowly grew into something much bigger.

EventCatalog is now an open source tool to document and visualize event-driven architectures — events, services, domains, diagrams — all in one place.

What started as a personal tool has turned into a community project used by teams to bring clarity to complex EDA systems. I’ve been working on it solo for 3 years, refining it with real users, adding governance features, imports/exports, and now even a Studio for visual modeling.

GitHub: https://github.com/event-catalog/eventcatalog

Demo / Docs: https://eventcatalog.dev

If you work with event-driven systems, I’d love your thoughts:

How do you document your events/services today?

What’s still painful or missing in tools like this?

This project has been a long journey — now I’m opening it up to more feedback and ideas from the HN community!

Thanks for reading!

Hey folks,

Last year I left AWS to take my open source side project into a full time job.

In the spirit of giving back, here are some lessons I learnt along the way, and hopefully they can help others.

Any questions let me know! Happy to help.

Thanks!

Yeah thats the whole point, just to help people out! I enjoy doing all sorts and writing tools so anything I can do to help people.

If your interested in the project, sign up for the early access, I give weekly updates on progress and hopefully soon give people links to give the tool ago for themself!

I just this second created another Youtube video with a weekly update if your interested:

https://youtu.be/rimFEf5grGk

I have built a few tools for developers:

- Mockit - A tool to quickly create mocked APIs.

- awsicons.dev - Quickly find AWS icons

- EventBridge Atlas - Discover and document your AWS EventBridge schemas

I'm currently building a tool that will hopefully help all open source engineers in the world.

I want to give open source engineers the ability to quickly create landing pages for their GitHub projects.

I think README.md files can only go so far, but (for me anyway) nothing beats a nice landing page selling your open source project.

Not all of us have the time or skills needed to create landing pages so I built https://gitpages.app that can help everyone.

https://gitpages.app is a tool that hopefully can inspire and help open source engineers. It's still in development but if people are interested let me know.

Cheers!

Yeah guess there is no reason why a monkey could not be worked on.

Here is how it works for MockIt, as you said its just some middleware

https://github.com/boyney123/mockit/blob/master/mockit-route...

Hey,

Yeah I will check that repo out and see what you've got.

Thanks, hopefully the UI is easy enough for people to do what they need to. :)

Yeah, some interesting thoughts. I will have a think and see what can be done to extend the Monkey

No problem, hope you find it useful

Ha awesome, no problem!

Hope you find it useful, if you have any questions or feature requests let me know :)

Yeah they look quite simular.

Yeah I'm not sure I would use it for automated tests, you kind of want something abit more "robust" for those tests. This tool was designed to help get people off the ground, but I guess there is no reason why you could'nt use it for automated tests etc. Not sure I would!