Multiple databases support

[deividaspetraitis]

Hello Ben,

Thanks for sharing these great resources!
I was wondering how you would handle a case adding new database support say let's say leaving User fetching as it is in sqllite and UserAuths from another database or even external service API.

Would it be good approach inject DB/API service handler into UserService ?

Thank you,

Deividas

[benbjohnson]

Hi @deividaspetraitis. If the sqlite.UserService needed to interact with an AuthService then I'd probably attach it as a field on sqlite.UserService:

package sqlite

type UserService struct {
	AuthService myapp.AuthService
}

Then I'd attach the concrete implementation in the cmd/myapp/main.go so that the sqlite implementation wouldn't need to know anything about the other database implementation.

[deividaspetraitis]

Thank you @benbjohnson for sharing your thoughts!