amazon-web-services - 解析 S3FileAdapter

Question

我目前有一个解析服务器部署工作，但每次我上传文件时，它都会使用 GridStore 文件适配器而不是 S3 文件适配器存储它。我的应用 JS 看起来像这样:

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

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

var S3Adapter = require('parse-server').S3Adapter;

var databaseUri = process.env.DATABASE_URI || process.env.MONGOLAB_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 || 'somAppId',
  masterKey: process.env.MASTER_KEY || '', //Add your master key here. Keep it secret!
  serverURL: process.env.SERVER_URL || 'http://localhost:1337/parse',  // Don't forget to change to https if needed
  liveQuery: {
    classNames: ["Posts", "Comments"] // List of classes to support for query subscriptions
  },
  filesAdapter: new S3Adapter(
    "S31",
    "S32",
    "bucket-name",
    {directAccess: true}
  )
});
// 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();

// 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('Make sure to 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);

部署后我没有收到任何错误。一切似乎都运行良好。但是，当我上传文件时，它会转到我的 monglab 数据库而不是我的 S3 存储。我需要做其他事情来配置它吗？我使用文档作为引用来配置它:

https://github.com/ParsePlatform/parse-server/wiki/Configuring-File-Adapters

我还注意到在解析服务器存储库中它没有 S3FileAdapter: https://github.com/ParsePlatform/parse-server/tree/master/src/Adapters/Files

任何帮助将不胜感激!

谢谢，

大卫

Answer 1

mLab 数据库不存储文件。它只存储文件的链接。您需要先将文件上传到 S3。如果成功，Parse server 将返回一个文件名，然后将该文件名写入数据库。我使用 curl 命令来检查文件写入。如果有效，则您的设置应该没问题。

curl -X POST \
  -H "X-Parse-Application-Id: YOUR-APP-ID" \
  -H "X-Parse-REST-API-Key: YOUR-KEY" \
  -H "Content-Type: text/plain" \
  -d 'Hello, it is me!' \
  http://your-parse-server/parse/files/filename.txt