阅读CollectionFS文件从服务器的文件系统上meteor.com托管时 [英] Read CollectionFS file from server's filesystem when hosted on meteor.com

问题描述

我试着让用户上传一个txt文件，然后让他点击按钮分析，然后进行一些分析。

Im trying let the user Upload a txt file and then let him click a button "analyze" and then perform some analysis.

我的应用程序在本地工作，即时通讯使用FS.Collection和文件系统，但是我不得不部署到meteor.com几个问题。下面是我收集的：

I have the app working locally, Im using FS.Collection and FileSystem however I had several problems deploying to meteor.com. Here is my collection:

FS.debug = true;

Uploads = new FS.Collection('uploads', {
    stores: [new FS.Store.FileSystem('uploads')]
});

和这里是我尝试读取上传的文件：

and here is how I try to read the uploaded file:

var fs = Npm.require('fs');
var readedFile = fs.readFileSync(process.env.PWD+'/.meteor/local/cfs/files/uploads/+file.copies.uploads.key, 'utf-8');

在本地而不是当我部署到meteor.com以上的作品，我看到类似这样的调试消息：错误：ENOENT，没有这样的文件或目录

The above works in local but not after I deploy to meteor.com, in the debug messages I see something like this: Error: ENOENT, no such file or directory

所以，我不知道如何读取文件时，应用程序部署，你会怎么办呢？或者你认为我应该部署的应用程序，以Amazon EC2的？我怕部署到亚马逊和有同样的问题...

So I do not know how to read the file when the app is deployed, how would you do it?, or do you think I should deploy the app to Amazon EC2? Im afraid to deploy to amazon and have the same problem...

推荐答案

使用HTTP下载一个通过collectionFS上载的文件的简单的例子。

Short example of using http to download a file that was uploaded via collectionFS.

var file = Uploads.findOne({ _id: myId }); // or however you find it
  HTTP.get(file.url(),function(err,result){
    // this will be async obviously
    if ( err ) console.log("Error "+err+" downloading file"+myId);
    else {
      var content = result.content; // the contents of the file
      // now do something with it
    }
  });

请注意，您必须流星添加http 来获得访问HTTP包。

Note that you must meteor add http to get access to the http package.

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