打印散列值？

Question

我试图打印出一个应用了 sha256 散列的 int，但我只在服务器日志中得到 [object Object]。

关于如何打印/查看对象的任何想法？

Meteor.methods({
twilioTest:function () {

console.log("Twilio Test Called!");

    // Get time for 2fa code
    var d = new Date();
    var seconds = d.getTime() / 1000;
    seconds = parseInt(seconds);

    // Get large random int
    var largeInt = Math.floor(Math.random() * (999999999 - 99999999999999999) + 99999999999999999);

    console.log("seconds value: " + seconds);
    console.log("largeInt value: " + largeInt);

    // Combine the values
    var combined = seconds + largeInt;

    console.log("combined value: " + combined);

    // Hash the value
    combined = Meteor.call('generateHash',combined);
    console.log("combined value HASHED: " + combined);

},

generateHash: function(val){
    check(val, Match.Any);
    var hash = 0;

    var crypto = Npm.require('crypto');
    var key = 'abc123';

    hash = crypto.createHmac('sha256', key);

    return hash;
}
});

Answer 1

Meteor.call() 没有 return 您期望的值；你需要检查回调。使用这样的东西：

Meteor.call('generateHash', function(error, hash) {
    if (error) {
        console.log(error);
    } else {
        console.log(hash);
    }
});

Answer 2

我的问题是散列值的方式。首先，我确保将我的 int 类型转换为一个字符串，然后这就是哈希应该如何生成的：

generateHash: function(val){
    check(val, Match.Any);
    var hash = 0;

    var crypto = Npm.require('crypto');
    var key = 'abc123';

    hash = crypto.createHmac('sha256', key).update(val).digest('hex') // This line is key

    return hash;
}

打印散列值？

Printing out hashed values?

javascript

hashcode

meteor