How to pass database connection information to golang package?

Question

go

How, from the point of view of the architecture of the application on GO, to pass a database connection to all packages where it will be used?

Let's say now I do in the main package:

db, err := sql.Open("mysql", "database:[email protected](127.0.0.1:3306)/database?parseTime=true")

and I pass the connection to the servers package, then I pass the connection to the servers
servers.SocketsRun(db)

package to the connect package
connect.run(db)

, and so on along the chain ...

And how is it correct, from the point of view of architecture, to use the established connection to the database in all packages?

Answer 1

Would this option be correct?
https://fooobar.com/questions/10380979/sharing-ag...

Answer 2

You can use Dependency Injection by passing the database connection to the struct instantiation function

type Server struct {
    db *sql.DB
}

func NewServer(db *sql.DB) *Server {
    return &Server{
        db: db,
    }
}

func (s *Server) Run() {
    // s.db 
}

Answer 3

Use DI and IoC
Run-time: https://github.com/uber-go/dig
Compile-time: https://github.com/google/wire