Mongo connection with go lang

In this article, we will discuss how to make the connection with mongodb by single separate file.

Make a single file for the connection’s separate code, path will be db/mongo.go

package db
import (
"go-echo-restful-api/config"
 "github.com/labstack/gommon/log"
 mgo "gopkg.in/mgo.v2"
)
var (
 session      *mgo.Session
 databaseName = "example"
)
func init() {
 stgConnection()
}
func stgConnection() {
 hosts := config.Config.Database.Address // localhost
 mgoSession, err := mgo.Dial(hosts)
 if err != nil {
  log.Fatal(err)
 }
 session = mgoSession
}
func pullSession() *mgo.Session {
 return session.Copy()
}
// Ping connection
func Ping() error {
 sessionCopy := pullSession()
 defer sessionCopy.Close()
 return sessionCopy.Ping()
}

How will be call from main file.

err := db.Ping()
if err != nil {
  logrus.Fatal(err)
}

That’s it for this time! I hope you enjoyed this post. As always, I welcome questions, notes, comments and requests for posts on topics you’d like to read. See you next time! Happy Coding !!!!!