Meteor：在Meteor.method中调用异步函数并返回结果 [英] Meteor: Calling an asynchronous function inside a Meteor.method and returning the result

问题描述

我想在Meteor方法中调用异步函数，然后将该函数的结果返回给Meteor.call。

I want to call an asynchronous function inside a Meteor method and then return the result from that function to Meteor.call.

（如何）可能？

Meteor.methods({
  my_function: function(arg1, arg2) {
    //Call other asynchronous function and return result or throw error
  }
});

推荐答案

Andrew Mao是对的。对于这种情况，Meteor现在有 Meteor.wrapAsync（）。

Andrew Mao is right. Meteor now has Meteor.wrapAsync() for this kind of situation.

这是通过条带进行收费的最简单方法，也可以传递回调函数：

Here's the simplest way to do a charge via stripe and also pass a callback function:

var stripe = StripeAPI("key");    
Meteor.methods({

    yourMethod: function(callArg) {

        var charge = Meteor.wrapAsync(stripe.charges.create, stripe.charges);
        charge({
            amount: amount,
            currency: "usd",
            //I passed the stripe token in callArg
            card: callArg.stripeToken,
        }, function(err, charge) {
            if (err && err.type === 'StripeCardError') {
              // The card has been declined
              throw new Meteor.Error("stripe-charge-error", err.message);
            }

            //Insert your 'on success' code here

        });
    }
});

我发现这篇文章真有帮助：
Meteor：在服务器上正确使用Meteor.wrapAsync

I found this post really helpful: Meteor: Proper use of Meteor.wrapAsync on server

这篇关于Meteor：在Meteor.method中调用异步函数并返回结果的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！