客户端中针对未返回的Meteor方法调用的回调

Question

So I'm calling a method from the client that has a callback:

Meteor.call("readHeaders", Meteor.user().emails[0].address+'/'+Session.get("file1"), 
            function(err,result){
                console.log(result);
        });

and here is the method that's being called:

readHeaders: function(fileName){
        var nodeFS = Meteor.npmRequire('node-fs');
        nodeFS.readFile("somepath/"+fileName,'utf8', function read(err, data){
            if (err) {
                throw err;
            }
            var headers = [data.slice(0,data.indexOf('\n')).split(",")];

            return headers;

        });
    }

The correct result gets printed on the server, but on the client it returns undefined. Any suggestions?

Answer 1

I'm guessing your method call and callback are fine, but your method itself is probably not returning what you're expecting. Add a console.log(headers) before the return headers line and make sure it's an object.