Creating new app. should i use v4 or v5?

[smam-tech]

Hello, currently i am creating new app for thesis and probably will have lot of upgrading. I want to use v4 but i am afraid that i will need to upgrade to v5 when v5 is released. I am still newbie in go so i welcome any recommendation.

here is my project repository : https://github.com/SMAMHTN/Knowledge-Management-Systems

So the idea is i want to create erp like system with microservice as its architecture, but currently because i want to finish my study so i only focused on 1 module that is knowledge management system. this system will be able to store any information and file. here is the architecture looks like

Note : scrap that mongodb, i dont think mongodb will be really used.

Core : any information regarding user, company, and application setting using Golang
KMS : any information regarding to stored information and file using Golang
Solr : for search engine using apache solr
Frontend KMS : for showing the interface using React

so i want Core and KMS to be able to communicate with other apps through API and sending text,image, or any other file. should i use the v4 or v5 for long term development purpose? thanks!

[aldas]

You should use v4. v5 is unreleased and could have, actually I am quite sure, has plenty of changes and has no definite release date.

[smam-tech]

that plenty of changes is what i am afraid of, if v5 is released then i need to change a lot of things. but knowing that you said that it has no definite release date. then its safe to assume that it still long til i need to migrate from v4 to v5. Thanks for your answer!

[aldas]

I suggest creating your system as clean/onion architecture and code your handlers distinctly separate from your business layer. In that case the change is in single place/layer. Use DTOs/Command objects to pass extracted data from handlers to business layer/services and for responses - map business domain objects to response DTOs.

Eventually your HTTP layer code is only small part of your system. Most of the complexity and code will be in business layer.

[smam-tech]

yeah, currently i am trying to do it like that. still learning tho, thanks for the suggestion!