Couchbase CRUD operations Node js

couchbase.js

var uuid = require('uuid');
var couchbase = require("couchbase");

var cluster = new couchbase.Cluster("127.0.0.1:8091");
var CbBucket = "aBucket";
var pass = "12345678";

//get
var bucket = cluster.openBucket(CbBucket, pass, function(err) {
    if (err) {
        throw err;
    }
    else {
        bucket.get("User_6da5b3a7-5ab6-40a3-b0b4-95cb32237978", function(err, user) {
            if (err) {
                throw err;
            }
            else{
                console.log(user.value)
            }
        })
    }
})


//create
var bucket = cluster.openBucket(CbBucket, pass, function(err) {
    if (err) {
        throw err;
    }
    else {
        var user = {
            "type": "User",
            "id": "User_"+uuid.v4(),
            "name": "user",
            "email": "[email protected]",
            "deleted": false
        }
        bucket.insert(user.id, user, function(err, result) {
            if(err){
                throw err;
            }
            else{
                console.log("User Added");
            }
        });
    }
})


//update
var bucket = cluster.openBucket(CbBucket, pass, function(err) {
    if (err) {
        throw err;
    }
    else {
        bucket.get("User_6da5b3a7-5ab6-40a3-b0b4-95cb32237978", function(err, user) {
            if (err) {
                throw err;
            }
            else{
                user.value.name = "User";
                bucket.replace(user.value.id, user.value, function(err) {
                    if(err){
                        throw err;
                    }
                    else{
                        console.log("user updated")
                    }

                })

            }
        })
    }
})