我更改为Firebase后我的Firebase队列无法执行任何操作3

几周前我开始使用Firebase，并在我的node.js服务器代码上运行了Firebase队列。客户可以将消息推送到队列/任务，服务器将解决它们。 Firebase已更改为第3版后，我无法复制此内容，即使Firebase队列已更新且没有其他人似乎遇到问题。这可能只是我的代码中的一个小错误，但几天后我还没有找到它，如果有人能为我指出，我将不胜感激。我更改为Firebase后我的Firebase队列无法执行任何操作3

这里我有我的服务器代码。每当任务被添加到队列中时，它应该打印到控制台，但事实并非如此。最后一行显示它能够连接到服务器。

var firebase = require('firebase'); 
var Queue = require('firebase-queue'); 

firebase.initializeApp({ 
    serviceAccount: 'serviceAccountCredentials.json', 
    databaseURL: 'https://heretikchess-250ed.firebaseio.com/' 
}); 

var ref = firebase.database().ref('queue'); 

var queue = new Queue(ref, function(data, progress, resolve, reject) { 
    console.log('This should print whenever a task is pushed onto the queue.') 
    console.log(data); 
    setTimeout(function() { 
    resolve(); 
    }, 1000); 
}); 

ref.push('this is a push from the server'); 
//This push works fine, so there's no problem connecting to the server.

这里是我的客户端代码。推送到队列/任务是成功的。

<!doctype html> 
<html lang='en'> 
<head> 
    <meta charset="utf-8"> 
    <title>Why won't my code work?</title> 
    <script src="https://www.gstatic.com/firebasejs/3.0.0/firebase.js"></script> 
    <script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js'></script> 
</head> 

<body> 

    <div> 
     <h3>Submit push to firebase</h3> 
     <button id='submitbutton' class='btn btn-default' type='button'>Submit</button> 
    </div> 

<script> 
     var config = { 
     apiKey: "AIzaSyCJKI3tjnnuOIcx2rnOuSTUgncuDbbxfwg", 
     authDomain: "heretikchess-250ed.firebaseapp.com", 
     databaseURL: "https://heretikchess-250ed.firebaseio.com", 
     storageBucket: "heretikchess-250ed.appspot.com", 
     }; 
     firebase.initializeApp(config); 

     var ref = firebase.database().ref('queue/tasks'); 

     //Send message to queue/tasks 
    $('#submitbutton').click(function() { 
     ref.push('this is a push from the client'); 
    }) 
    </script> 
</body> 
</html>

来源

2016-05-24 Grant Sinclair

我认为你需要使用队列/任务子树，虽然我刚刚开始。你也可以通过以下方式确认你的环境：npm list firebase-queue，npm -v和npm list firebase，以确保我使用的是相同的版本。也可能想检查出http://stackoverflow.com/questions/36460698/how-push-a-task-with-specid-in-firebase-queue-with-nodejs?rq=1 –

这个工作对我来说：

server.js

var firebase = require('firebase'); 
var Queue = require('firebase-queue'); 

firebase.initializeApp({ 
    serviceAccount: 'serviceAccountCredentials.json', 
    databaseURL: 'https://heretikchess-250ed.firebaseio.com/' 
}); 

var db = firebase.database(); 
var ref = db.ref("queue"); 
var queue = new Queue(ref, function(data, progress, resolve, reject) { 
    console.log('This should print whenever a task is pushed onto the queue.') 
    console.log(data); 
    setTimeout(function() { // NB: the record will be entirely removed when resolved 
    resolve(); 
    }, 1000); 
});

client.js

var firebase = require('firebase'); 
var Queue = require('firebase-queue'); 

firebase.initializeApp({ 
    serviceAccount: 'serviceAccountCredentials.json', 
    databaseURL: 'https://heretikchess-250ed.firebaseio.com/' 
}); 
var db = firebase.database(); 
var ref = db.ref("queue"); 

var task = {'userId': "Peter"}; 

// ref.child('tasks').push('this is a push from the client"}); 
// NB the above doesn't work because it's a string and not a structure 
ref.child('tasks').push({"name": "this is a push from the client"}).then(function(){ process.exit();});

注意 - 您需要发布结构而不是任务的值。您可能会发现，它的作品如果不是

ref.push('this is a push from the client');

您使用

ref.push({"name": "this is a push from the client"});

也是您正试图执行从网页中的工作要求，我相信，你还需要对用户进行认证作为应用程序初始化我不相信验证用户，但只是标识连接。

的index.html

<!doctype html> 
<html lang='en'> 
<head> 
    <meta charset="utf-8"> 
    <title>Why won't my code work?</title> 
    <script src="https://www.gstatic.com/firebasejs/3.0.0/firebase.js">  
</script> 
<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js'>  
</script> 
</head> 

<body> 

    <div> 
     <h3>Submit push to firebase</h3> 
     <button id='submitbutton' class='btn btn-default' type='button'>Submit</button> 
    </div> 

<script> 
    var config = { 
    apiKey: "AIzaSyCJKI3tjnnuOIcx2rnOuSTUgncuDbbxfwg", 
    authDomain: "heretikchess-250ed.firebaseapp.com", 
    databaseURL: "https://heretikchess-250ed.firebaseio.com", 
    storageBucket: "heretikchess-250ed.appspot.com", 
    }; 
    firebase.initializeApp(config); 

    var ref = firebase.database().ref('queue/tasks'); 

    // NEED TO AUTH THE CONNECTION AS A USER 

    firebase.auth().signInWithEmailAndPassword('[email protected]', 'password').catch(function(error) { 
    // Handle Errors here. 
    var errorCode = error.code; 
    var errorMessage = error.message; 
    // ... 
    }).then(function(){console.log('peter logged in')}); 


    //Send message to queue/tasks 
$('#submitbutton').click(function() { 
    ref.push({'frompeter':'this is a push from the client'}); 
}) 
</script> 
</body> 
</html>

请注意，您还需要添加用户并配置访问权限的身份验证为/队列路径。我通过firebase身份验证/用户控制台屏幕手动添加了[email protected]的用户名和密码。

您需要优化的初学者配置。

{ 
    "rules": { 
     ".read": false, 
     ".write": false, 
     "queue": { 
     ".read": true, 
     ".write": true 
     } 
    } 
}

如果你有权威性如上再打开，你将能够使用curl来测试命令行客户端请求：

curl -X POST -d '{"foo": "bar"}' https://heretikchess-250ed.firebaseio.com//queue/tasks.json

如果仍然有问题，也许是检查所有的库版本贝壳。

## Display node version 
npm -v 
## (mine is 3.9.0) 

npm list firebase 
## mine is 3.0.2 

npm list firebase-queue 
## mine is 1.4.0

来源

2016-05-24 22:45:52

我更改为Firebase后我的Firebase队列无法执行任何操作3

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