Golang and MongoDb remote access fail (server returned error on SASL authentication step: Authentication failed.)

Question

I am trying to connect to remote MongoDB database (Mongolab) from Go with mgo library but getting error panic: server returned error on SASL authentication step: Authentication failed. Here is my code

package main

import (
    "fmt"
    "gopkg.in/mgo.v2"
    "gopkg.in/mgo.v2/bson"
    "log"
)

type Person struct {
    Name  string
    Phone string
}

func main() {
    session, err := mgo.Dial("mongodb://<dbusername>:<dbpassword>@ds055855.mlab.com:55855")

    if err != nil {
        panic(err)
    }
    defer session.Close()

    // Optional. Switch the session to a monotonic behavior.
    session.SetMode(mgo.Monotonic, true)

    c := session.DB("catalog").C("History")
    err = c.Insert(&Person{"Ale", "[phone]"},
        &Person{"Cla", "[phone]"})
    if err != nil {
        log.Fatal(err)
    }

    result := Person{}
    err = c.Find(bson.M{"name": "Ale"}).One(&result)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println("Phone:", result.Phone)
}

How can I fix this? And of course instead of stars in my code i write my login and password.

Answer 1

Please check if you have added users for your Mongolab database instance (https://mongolab.com/databases/catalog#users in case if your DB name is catalog) because by default your users list is empty (account user/password != database user/password).

Also add /<databasename> to the end of your connection string - mongodb://*******:*******@ds045795.mongolab.com:45795/databasename.