在 Heroku 上使用 Parse 服务器“无法连接到 Parse API”

Question

当我尝试连接 Parse Server API 时，我收到错误 无法创建新对象，错误代码为：XMLHttpRequest failed:“无法连接到 Parse API”。我在 Heroku 上部署了 ParsePlatform/parse-server-example。我可以使用浏览器毫无问题地访问我的应用程序。尝试使用以下代码连接到 Heroku 上的 Parse 时出现错误：

var $result=$('#results').html('Testing configuration.....');
  Parse.initialize('<MY_APP_ID>', '<MY_JAVASRIPT_KEY>');
  Parse.serverURL = '<MY_HEROKU_APP_NAME>.herokuapp.com/'

  var ParseServerTest = Parse.Object.extend('ParseServerTest');
  var _ParseServerTest = new ParseServerTest();

  _ParseServerTest.set('key', 'value');
  _ParseServerTest.save(null, {
    success: function(_ParseServerTest) {
      var txt = 'Yay, your server works! New object created with objectId: ' + _ParseServerTest.id;
      $result.html('<div class="alert alert-success" role="alert">' + txt + '</div>');
    },
    error: function(_ParseServerTest, error) {
      var txt = 'Bummer, Failed to create new object, with error code: ' + error.message;
      $result.html('<div class="alert alert-danger" role="alert">' + txt + '</div>');
    }
  });

index.js

// Example express application adding the parse-server module to expose Parse
// compatible API routes.

var express = require('express');
var cors = require('cors');

var ParseServer = require('parse-server').ParseServer;
var path = require('path');

var databaseUri = process.env.DATABASE_URI || process.env.MONGODB_URI;

if (!databaseUri) {
  console.log('DATABASE_URI not specified, falling back to localhost.');
}

var api = new ParseServer({
  databaseURI: databaseUri || 'mongodb://localhost:27017/dev',
  cloud: process.env.CLOUD_CODE_MAIN || __dirname + '/cloud/main.js',
  appId: process.env.APP_ID || 'myAppId',
  masterKey: process.env.MASTER_KEY || '', //Add your master key here. Keep it secret!
  serverURL: process.env.SERVER_URL || 'https://localhost:1337/parse',  // Don't forget to change to https if needed
  liveQuery: {
    classNames: ["Posts", "Comments"] // List of classes to support for query subscriptions
  }
});
// Client-keys like the javascript key or the .NET key are not necessary with parse-server
// If you wish you require them, you can set them as options in the initialization above:
// javascriptKey, restAPIKey, dotNetKey, clientKey

var app = express();
app.use(cors());

// Serve static assets from the /public folder
app.use('/public', express.static(path.join(__dirname, '/public')));

// Serve the Parse API on the /parse URL prefix
var mountPath = process.env.PARSE_MOUNT || '/parse';
app.use(mountPath, api);

// Parse Server plays nicely with the rest of your web routes
app.get('/', function(req, res) {
  res.status(200).send('I dream of being a website.  Please star the parse-server repo on GitHub!');
});

// There will be a test page available on the /test path of your server url
// Remove this before launching your app
app.get('/test', function(req, res) {
  res.sendFile(path.join(__dirname, '/public/test.html'));
});

var port = process.env.PORT || 1337;
var httpServer = require('http').createServer(app);
httpServer.listen(port, function() {
    console.log('parse-server-example running on port ' + port + '.');
});

// This will enable the Live Query real-time server
ParseServer.createLiveQueryServer(httpServer);

Heroku 配置：

我关注了这篇文章：How can I host my own Parse Server on Heroku using MongoDB?，除了我没有使用“部署到 Eroku”按钮，我手动部署了它。

感谢您的帮助。

Answer 1

我终于找到了办法。 我首先在我的 mongo db 中创建了另一个用户，然后在 Heroku 中对其进行了更改。尝试用相同的js代码code jsfiddle连接，但没有成功...

然后我尝试了一个android客户端，这个链接对我帮助很大http://www.robpercival.co.uk/parse-server-on-heroku/

StarterApplication.java

public class StarterApplication extends Application {
@Override
public void onCreate() {
    super.onCreate();

    // Enable Local Datastore.
    Parse.enableLocalDatastore(this);

    // Add your initialization code here
    Parse.initialize(new Parse.Configuration.Builder(getApplicationContext())
            .applicationId("BUTYcVjD7nFz4Le")
            .clientKey("XgQaeDY8Bfvw2r8vKCW")
            .server("https://xxxxx-xxxx-xxxxx.herokuapp.com/parse")
            .build()
    );

    ParseUser.enableAutomaticUser();
    ParseACL defaultACL = new ParseACL();
    // Optionally enable public read access.
    // defaultACL.setPublicReadAccess(true);
    ParseACL.setDefaultACL(defaultACL, true);
}

MainActivity.java

 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

    ParseAnalytics.trackAppOpenedInBackground(getIntent());

    ParseObject test = new ParseObject("Test");
    test.put("username","pedro");
    test.put("age",33);
    test.saveInBackground(new SaveCallback() {
        public void done(ParseException e) {
            if (e == null) {
                Log.i("Parse", "Save Succeeded");
            } else {
                Log.e("Parse", "Save Failed");
            }
        }
    });

}

我真的不知道我的第一个用户有什么问题，无法连接。我永远无法连接 js 代码......但无论如何我的目标是连接 Android 客户端所以......