Best practice to maintain a mgo session

Question

I\'m currently using a mongodb with mgo lib for a web application, but I\'m not sure if the way I\'m using it, is good one ..

package db

import (
    \"gopk         


        

Answer 1

Although not directly answering your question, regarding mgo session checking you must use defer/recover since mgo calls (even mgo.session.Ping) panic. As far as I can tell there is no other way of checking mgo session state (mgo godocs). You can use Gustavo Niemeyer's suggestion and add a method on your DataStore type.

func (d *DataStore) EnsureConnected() {
    defer func() {
        if r := recover(); r != nil {
            //Your reconnect logic here.
        }
    }()

    //Ping panics if session is closed. (see mgo.Session.Panic())  
    d.Ping()
}