Java Vert.x with Dependency Injection

[Zolf]

Hi there,

I want to know does the community recommend the need to use DI with Java Vertx or I can create objects using simple constructor. Any feedback will be greatly appreciated.

regards

Zolf

[Nicolas Le Bas]

Hi,

I suppose your question derives from a confusion between DI (as in SOLID principles) and DI frameworks (like Spring).

I believe DI as a programming technique should always be used, because it allows mocking dependencies and is a cornerstone of unit testing.

It could be simple constructor injection without a framework. Whether the use of a framework like Spring will help with your project or not, that's independent from Vert.x .

Hope this helps,

Nic

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[andriusk]

Hi,

check this article https://taraskohut.medium.com/vert-x-micronaut-do-we-need-dependency-injection-in-the-microservices-world-84e43b3b228e

the author discusses this topic and shows demo Vertx with Micronaut DI. Other available options are discussed in the same article as well. 

Micronaut documentation claims that their DI does not rely on runtime reflection and proxies, so it gives better startup time and performance. 

Also, Micronaut's DI can be used completely independently of Micronaut framework for whatever application type you wish to build.

Here is documentation https://docs.micronaut.io/latest/guide/#ioc

Quarkus framework uses Vertx components and it is possible to use Vertx directly within the framework. Quarkus also supports DI https://quarkus.io/guides/cdi

Thanks

Andrius

[hantsy bai]

It is easy to integrate Spring and Weld(CDI) with Vertx and provides DI service.

Check my example:

https://github.com/hantsy/vertx-sandbox#sample-codes

Hantsy Bai

Self-employed consultant, fullstack developer, agile coach

GitHub: https://github.com/hantsy

Twitter: https://twitter.com/@hantsy

Medium: https://medium.com/@hantsy

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