Trouble returning a valid result while integrating Stripe API into my Meteor app - meteor

Question

Here's the rundown:
I'm trying to run Stripe API on my Meteor app asynchronously
Long story short, everything works (i.e. subscription and charge is/are created normally and shows up in my Stripe dashboard)
When errors occur, the errors throw normally and show on client via user friendly alerts
I have a problem when there is a success and customer subscription is created, the result is not present in client and instead always returns as an error, despite it being a successful process
Here's what my method looks like on the server:
createCustomer: function(token, email, plan){
try{
let createCustomer = Meteor.wrapAsync(stripe.customers.create);
let result = createCustomer({
source: token,
email: email,
plan: plan
});
let subscription = {
customer: result.id,
sub: result.subscriptions.data[0].id,
plan: result.subscriptions.data[0].plan.name
};
Meteor.users.update({_id: Meteor.userId()}, {$set: subscription});
} catch(error){
if(error.code === "incorrect_cvc"){
throw new Meteor.Error("incorrect_cvc", error.message);
}
// More of such errors follows
}
}
Here's what it looks like on the client:
Stripe.card.createToken({
number: number,
cvc: cvc,
exp_month: exp,
exp_year: exp_year,
address_zip: zip,
address_country: country
}, function(status, response){
if(response.error){
console.log("Make sure all fields are filled before submitting order.");
} else{
let token = response.id;
Meteor.call("createCustomer", token, email, plan, function(error, result){
if(result){
console.log("Congratulations, everything worked!");
} else{
if(error.error === "incorrect_cvc"){
console.log("oops, the CSV is incorrect");
}
// More of such errors follow..
}
})
}
});
So, everything works in terms of when there is a real error, it throws fine on server + client. When user uses card, the charges are created and subscription is always created. HOWEVER, when there is a success and everything clicking fine, I still receive an error on client via callback and the result is never true or triggered. No idea why.

Answer 1

Not 100% up on Meteor, but it looks to me like your createCustomer method doesn't actually return anything, so the result from your (err, result) might never have anything in it?
As was mentioned in the comments, you might want to separate out the steps and wrap each in its own try-catch set so you can better isolate the issue.
Also, I feel like you could probably generalize your server-side error code to something like:
throw new Meteor.Error(error.error, error.message);
And I might even be tempted to do something like this, at least during testing/development - that way you can actually console.log() the original error in the browser:
throw new Meteor.Error(error.error, error.message, JSON.stringify(error));