node/express server. parameter is undefined - node.js

Question

What is going wrong with my string parameter?
var express = require('express');
var app = module.exports = express();
var mongoose = require('mongoose');
var bodyParser = require('body-parser');
var braintree = require("braintree");
Schema = mongoose.Schema;
var user = require('../shared/userFunctions.js')
//register functions
app.register = function(api) {
api.get('get_client_token', generateClientToken);
api.get('find_customer', findCustomer);
api.post('checkout', checkout);
api.post('create_customer', createCustomer);
api.post('create_payment_method', newPaymentMethod);
}
The checkout function is where I call the local function with user.getuser
function checkout(request, response) {
var email = request.body.email;
var nonce = request.body.payment_method_nonce;
//var nonce = req.param("payment_method_nonce");
var amount = request.body.amount;
// Use payment method nonce here
gateway.transaction.sale({
amount: amount,
paymentMethodNonce: nonce,
}, function (err, result) {
if(err){
return response.send(500, "Checkout failed")
}
/* request.add({"amount": 10})
request = nonce;
newPaymentMethod(request);*/
/* return res.send(200, "Checkout Success")*/
});
user.getuser(email, function(u){
console.log("returning user: " + JSON.stringify(u))
return response.send(200, JSON.stringify(u))
})
}
If I hard core the email address into the mongoose query, it returns the user. What gives? Please give advice on my node async style. I am still new to it, but sometimes error first fucntions don't work and sometimes I need "next". The static email works but is my style the problem?
exports.getuser = function(email, res) {
var db = mongoose.connection;
mongoose.connect(process.env.MongoConnectionString);
db.on('error', function () {
});
db.once('open', function callback() {
console.log("Sucessfully Logged into mongo");
User.findOne({email:email}, function (err, user, next) {
if (err) {
mongoose.disconnect();
return next(err);
}
mongoose.disconnect();
console.log("Sending user response");
if(!user){
console.log("failed to get user")
return
}
return res(user);
});
});
EDIT
This function is responsible for calling the internal function. It seems to work exactly like the checkout function, except for its magical ability to work correctly.
function getUser(request, response) {
var email = request.param('email');
user.getuser(email, function(user){
return response.send(200, JSON.stringify(user))
})
};
Using a REST client so I assure you that body/params is not the problem. Thanks for the help thus far.

Answer 1

you can check your paratmeter in your api like this :
var password = req.body.passwordBrow || '';
var uidUser = req.body.uidUser || '';
and then check it :
if(password && uidUser){
// here you can log your parameters
}else{
// the parameter is undefined, so you need to check your request in the client
res.json({
status : "not_ok",
result : "empty_data",
resultType : serverConst.EmptyParams
});
}
hope it helps you.