Mika Koivisto

Solution Architect & OpenSource contributor. Interests: #PSD2, #Vertx, #Microservices, #API, #OSGi, #AWS, #REST, #Java, #OpenBanking, #Fintech 👉🏻@mikakoivisto

[Mika Koivisto @koivimik]

As my Vert.x microservices grow in complexity, I’ve felt the need for dependency injection to keep things modular and maintainable. But instead of bringing in the weight of Spring, I looked for lighter alternatives—and that’s where Dagger 2 comes in.

https://t.co/A53MRBTfHk

[Mika Koivisto @koivimik]

https://t.co/CRDrrvdiCc + Vert.x 🔥I’ve been missing DI in my pure Vert.x apps but didn’t want to taint them with Spring.

[Mika Koivisto @koivimik]

@rotty3000 If you ever find yourself in Finland let me know.

[Mika Koivisto @koivimik]

Next stop

[Mika Koivisto @koivimik]

@rotty3000 Damn. Would have been nice to see.

[Mika Koivisto @koivimik]

@zenorocha Congrats Zeno!

[Mika Koivisto @koivimik]

Yeah it’s all good as long as there is no ORM, Spring or any EE for that matter. Vert.x and JDBC all the way and we use Lombok to keep the classes clean.

[Oliver Drotbohm 🥁 & 👨‍💻 @odrotbohm]

The best ways to waste time in discussions in the Java world:

- Lombok VS. non-Lombok
- ORMs VS. JDBC
- Spring VS. JakartaEE

PSA: All of them are pointless. Save your time. Go ahead and work on stuff you consider important instead.

[Mika Koivisto @koivimik]

Rewrote my ControlMySpa Home Assistant integration so it’s actually useful and stable. https://t.co/NjsCa99yB9

[Mika Koivisto @koivimik]

Got a Volvo and want to control it’s charging from Home Assistant? Well this may help https://t.co/G3LTG8d33c #volvooncall #homeassistant

[Mika Koivisto @koivimik]

Does anyone know how you can turn off chunked transfer encoding in #vertx 4.1.2 WebClient? It’s causing issues for one IBM product which apparently doesn’t support it. In Vert.x 3.8.x the same exact WebClient call didn’t use chunked transfer encoding.

[Mika Koivisto @koivimik]

This is very useful tool.

[Bruno Borges @brunoborges]

Oh, @PayPal uses #Java. Not surprising!

They published a tool to sanitize heap dumps. Nice!

https://t.co/UBibGA48h2

[Mika Koivisto @koivimik]

I'm really trying to like @Dynatrace but it's just not working well with @vertx_project & OpenTelemetry. Traces look like this with no info and it's not propagated to the receiving service via Vert.x WebClient. OpenTracing is even worse and that worked perfectly with @datadoghq

[Mika Koivisto @koivimik]

@brianchandotcom Why so many baby wipes? I know they are when traveling especially with children but that seems a bit excessive.

[Jimmy Bogard is on Bluesky FYI @jbogard]

Pssssst Clean Architecture doesn’t actually solve these problems

[Mika Koivisto @koivimik]

MTLS & payload signing with caller IP limitation make it already quite hard to exploit but that should never be an excuse for not writing secure code.

[Mika Koivisto @koivimik]

It’s always nice to hear from security auditor they couldn’t find any holes in your API but it makes me always suspicious when there isn’t a single finding. Thanks to all the stuff I learned while working with @topolik we were able to plug the attack surface xml & SOAP brings.

[Mika Koivisto @koivimik]

@mtaivai Not having proper constraints and well defined errors in the REST APIs is bad but with OpenAPI you can describe those to certain extent but if you do any generated client will probably be crap.

[Mika Koivisto @koivimik]

In the year 2020 who in their right mind still uses SOAP web services for a brand new API. It’s of course for the govenment bank data API. Despite the horrible API we managed to implement it with Vert.x and minimal SOAP dependencies while leveraging work we did for our REST APIs.

[Mika Koivisto @koivimik]

@rotnroll666 Maven used to be horrible but now it’s pretty usable even though people still don’t do it right. Everyone else is still playing catch up.