Callback function in Nodejs - node.js

Question

I have function
var checkTokenIsExpired = function(name, token, response) {
LoginToken.find( { name: name, series: token }, function(error, info){
console.log("info: ", info[0]['expire']);
if (error) {
// response.send("error: %s}", error);
response(error);
}
if (info.length > 0) {
var expire = new String(info[0]['expire']);
// expire = expire.substr(0,26);
var date = new Date(expire);
if (date >= new Date()) {
// response.send("{info: success" );
response("success");
}
else{
// response.send("error: token-has-expired");
response("token-has-expired");
}
console.log("Response: ", info);
}
else {
response(null);
}
} );
}
To check token is expired or not? It will return a string.
And I call this function in here
exports.updateAccount = function(newData, callback)
{
Accounts.find({name:newData.body.name}, function(err, docs){
if (err) {
callback.send('{error: ' + String(err) + "}");
}
if (docs.length==0 || !docs) {
callback.send("{error: NULL }");
}
else {
checkTokenIsExpired(newData.body.name, newData.body.token, function(error, info){
if (error){
callback.send("{error: " + error + "}");
// I want to get info here }
console.log("check token: ", info);
// check info of token is expired or not
if (info!=null && info!="token-has-expired") {
var updateString = "";
if (newData.body.screen_name){
Accounts.update( {'name': newData.body.name},
{
"screen_name" : newData.body.screen_name
},
{ 'upsert' : true },
function (err, numberAffected, raw) {
if (err) return handleError(err);
});
}
if (newData.body.email){
Accounts.update( {'name': newData.body.name},
{
"email": newData.body.email
},
{ 'upsert' : true },
function (err, numberAffected, raw) {
if (err) return handleError(err);
});
}
if (newData.body.password == ''){
} else{
var password = encodePassword(newData.body.password, docs[0]['salt']);
Accounts.update( {'name': newData.body.name},
{
"hassedPass" : password,
},
{ 'upsert' : true },
function (err, numberAffected, raw) {
if (err) return handleError(err);
});
}
}
});
}
I want to get the info when call checkTokenIsExpired but when I console.log("info", info) it return undefined.

Answer 1

in checkTokenIsExpired, you need to pass info to the response callback otherwise it is not in scope of your second code.
at least in the case where you have success:
response("success", info);
Instead of passing "success", you'd typically pass null to indicate there is no error.

Answer 2

I have solved problem
checkTokenIsExpired(newData.body.name, newData.body.token, function(error, info)
because it will take 1 parameter but I put 2
Change it into checkTokenIsExpired(newData.body.name, newData.body.token, function(info)
It will correct :D