This week in Mainz was JAX 2023 again, organized by Software & Support. It was nice, because slowly the conferences are getting more full, more real again. JAX was also hybrid and the organizers put a lot of effort into streaming all workshops and talks in parallel and connecting visitors at home via chat. But it’s not the same as on-site, sharing, discussing, laughing, eating and drinking.
As I said, the conference consisted of workshops on Monday and Friday, and three days of keynotes, talks and panel discussions from Tuesday through Thursday.
I’m happy to share with you some news about the new release v0.3.0 of the Tideland Go Actor. This new version comes with a handful of exciting updates and improvements that make it easier and more efficient to work with Actors in Go. One important change in this release is the addition of the Repeat() method. This new feature allows developers to run background Actions in intervals, making it easier to handle long-running tasks in the background.
So far I had not missed generics in Go. Much could be solved via interfaces or closures. And with the disgusting syntactic aberrations of other languages when dealing with generics, I was rather afraid that the elegant simplicity of Go could be lost. As of Go 1.18, Google’s language now handles generics after much discussion.
I have always appreciated the implicit simplicity with which, for example, types in a statement like
As you know, I from time to time have the chance to give a talk about an interesting topic. Sometimes it’s pretty close to my work, sometimes it’s just inspired by my own ideas. In this case it’s a mix.
The conference this time had been the betterCode() API on 27.04.2022. Here I had the talk “Let the computer do it - Usage of declarative APIs”. It describes the troubles of today usual imperative APIs and how to use them in a declarative way.
The package Tideland Go Wait reached v0.2.0 due to a new added feature. It now contains the type Throttle to provide a limited processing of events per second, e.g. for web handlers. The events are simple closures or functions with a given signature. The limit and a burst size for the maximum number of events during one call are defined at throttle creation.
Example A throttled wrapper of a http.Handler.
There are times when you find a bug in your software. Today it had been in my testing library TIdeland Go Audit. Here the assertion ErrorContains() reacted with a panic in case of a nil error. So I fixed it like I already had done it earlier in ErrorMatch(). Interestingly I found in testing that I didn’t verified it there. So this test is now changed too.
Additionally during tests for a different library with high concurrency I, or better go test during the tests, discovered a race condition.
As described a few days ago, I am migrating individual packages of the Tideland libraries to own repositories. I’ve described my motivation for this before. In the meantime, two more packages have been migrated to the main level: Tideland Go Actor and Tideland Go Wait.
The package Tideland Go Actor pursues the idea to realize concurrency in Go not only via CSP, but with the Actor Model. It picks up the concept of the Erlang/OTP module gen_server.
A look at the Tideland Go repositories shows that these today are libraries for individual topics with various packages included. One problem with this form of organization is that these packages are difficult to find. At the same time, their individual histories and their versions are tied to those of the entire library. This must be improved.
Therefore, the reconstruction of these projects has now begun. The packages from the repositories move to the main level and become independent projects.
I’ve mentioned before that I’m currently reorganize my Tideland Go Libraries - once again. I’m sorry for it and it will be interesting just for those who want to participate in development. The import into your own projects will stay the same.
This time it’s about the Tideland Go Audit library, I’ve just released the new v0.5.0. It’s a well approved and robust library containing helpful packages for testing. So the update only contains a few changes.
In January 21 to 23, 2020 are the next GoDays in Berlin, Germany. And I hope it will be a great conference for all Gophers again like it has been this year too.
While being a passive visitor last time I’ll be active with two slots this time:
First one will be a workshop from 9:00 am to 5:00 pm on 21st together with Nico Schieder and Indradhanush Gupta. We’ll introduce you in Kubernetes as platform for own components, because it can do more than deploy and manage containers.
