Stable, fast, robust, and well-maintained Meteor.js package for files management using MongoDB Collection API. Call .insertAsync() method to initiate a file upload and to insert new record into MongoDB collection after upload is complete. Calling .removeAsync() method would erase stored file and record from MongoDB Collection. And so on, no need to learn new APIs. Hackable via hooks and events. Supports uploads to AWS:S3, GridFS, Google Storage, DropBox, and other 3rd party storage.

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• Compatible with all front-end frameworks from Blaze to React
• Upload via HTTP and DDP transports, read about difference
• Sustainable and "resumable" uploads will auto-resume when connection interrupted or server rebooted
• Upload files through computing cloud without persistent File System, like Heroku ("resumable" uploads are not supported on Heroku and alike)
• Use GridFS, AWS S3, Google Storage or DropBox and other (3rd-party storage)
• APIs for checking file mime-type, size, extension, an other file's properties before upload using onBeforeUpload hook
• APIs for resizing images, subversions management, and other post-processing tasks using onAfterUpload and onAfterRemove hooks

Install ostrio:files from Atmosphere

meteor add ostrio:files

Import in isomorphic location (e.g. on server and client)

import { FilesCollection } from 'meteor/ostrio:files';

For detailed docs, examples, and API — read documentation section.

Main methods:

• FilesCollection Constructor [Anywhere] - Initialize FilesCollection
• insertAsync() [Client] - Upload a file to server, returns FileUpload instance
• link() [Anywhere] - Generate downloadable link
• find() [Anywhere] - Find all files matching selector, returns FilesCursor instance
• findOneAsync() [Anywhere] - Find a single file record matching selector, returns FileCursor instance
• removeAsync() [Anywhere] - Asynchronously remove files from FilesCollection and "unlink" (e.g. remove) from Server
• addFile() [Server] - Add local file to FilesCollection from FS
• loadAsync() [Server] - Write file to FS and FilesCollection from remote URL
• writeAsync() [Server] - Write Buffer to FS and FilesCollection

[Anywhere]. Initiate file's collection in the similar way to Mongo.Collection with optional settings related to file-uploads. Read full docs for FilesCollection Constructor in the API documentation.

import { FilesCollection } from 'meteor/ostrio:files';
new FilesCollection(FilesCollectionConfig);

Pass additional options to control upload-flow

// shared: /imports/lib/collections/images.collection.js
import { Meteor } from 'meteor/meteor';
import { FilesCollection } from 'meteor/ostrio:files';

const imagesCollection = new FilesCollection({
  collectionName: 'images',
  allowClientCode: false, // Disallow remove files from Client
  onBeforeUpload(file) {
    // Allow upload files under 10MB, and only in png/jpg/jpeg formats
    if (file.size <= 10485760 && /png|jpg|jpeg/i.test(file.extension)) {
      return true;
    }
    return 'Please upload image, with size equal or less than 10MB';
  }
});

if (Meteor.isClient) {
  // SUBSCRIBE TO ALL UPLOADED FILES ON THE CLIENT
  Meteor.subscribe('files.images.all');
}

if (Meteor.isServer) {
  // PUBLISH ALL UPLOADED FILES ON THE SERVER
  Meteor.publish('files.images.all', function () {
    return imagesCollection.collection.find();
  });
}

import { FilesCollection } from 'meteor/ostrio:files';
const files = new FilesCollection(FilesCollectionConfig);
files.insertAsync(config: InsertOptions, autoStart?: boolean): Promise<FileUpload | UploadInstance>;

Read full docs for insertAsync() method

Upload form (template):

<template name="uploadForm">
  {{#with currentUpload}}
    Uploading <b>{{file.name}}</b>:
    <span id="progress">{{progress.get}}%</span>
  {{else}}
    <input id="fileInput" type="file" />
  {{/with}}
</template>

Shared code:

import { FilesCollection } from 'meteor/ostrio:files';
const imagesCollection = new FilesCollection({collectionName: 'images'});
export default imagesCollection; // import in other files

Client's code:

import { Template } from 'meteor/templating';
import { ReactiveVar } from 'meteor/reactive-var';
Template.uploadForm.onCreated(function () {
  this.currentUpload = new ReactiveVar(false);
});

Template.uploadForm.helpers({
  currentUpload() {
    return Template.instance().currentUpload.get();
  }
});

Template.uploadForm.events({
  async 'change #fileInput'(e, template) {
    if (e.currentTarget.files && e.currentTarget.files[0]) {
      // We upload only one file, in case
      // multiple files were selected
      const upload = await imagesCollection.insertAsync({
        file: e.currentTarget.files[0],
        chunkSize: 'dynamic'
      }, false);

      upload.on('start', function () {
        template.currentUpload.set(this);
      });

      upload.on('end', function (error, fileObj) {
        if (error) {
          alert(`Error during upload: ${error}`);
        } else {
          alert(`File "${fileObj.name}" successfully uploaded`);
        }
        template.currentUpload.set(false);
      });

      await upload.start();
    }
  }
});

For multiple file upload see this demo code.

Upload base64 string (introduced in v1.7.1):

// As dataURI
await imagesCollection.insertAsync({
  file: 'data:image/png,base64str…',
  isBase64: true, // <— Mandatory
  fileName: 'pic.png' // <— Mandatory
});

// As plain base64:
await imagesCollection.insertAsync({
  file: 'base64str…',
  isBase64: true, // <— Mandatory
  fileName: 'pic.png', // <— Mandatory
  type: 'image/png' // <— Mandatory
});

For more expressive example see Upload demo app

To display files you can use fileURL template helper or link() method of FileCursor instance.

Template:

<template name='file'>
  <img src="{{imageFile.link}}" alt="{{imageFile.name}}" />
  <!-- Same as: -->
  <!-- <img src="{{fileURL imageFile}}" alt="{{imageFile.name}}" /> -->
  <hr>
  <video height="auto" controls="controls">
    <source src="{{videoFile.link}}?play=true" type="{{videoFile.type}}" />
    <!-- Same as: -->
    <!-- <source src="{{fileURL videoFile}}?play=true" type="{{videoFile.type}}" /> -->
  </video>
</template>

Shared code:

import { Meteor } from 'meteor/meteor';
import { FilesCollection } from 'meteor/ostrio:files';

const imagesCollection = new FilesCollection({ collectionName: 'images' });
const videosCollection = new FilesCollection({ collectionName: 'videos' });

if (Meteor.isServer) {
  // Upload sample files on server's startup:
  Meteor.startup(async () => {
    await imagesCollection.loadAsync('https://raw.githubusercontent.com/veliovgroup/Meteor-Files/master/logo.png', {
      fileName: 'logo.png'
    });
    await videosCollection.loadAsync('http://www.sample-videos.com/video/mp4/240/big_buck_bunny_240p_5mb.mp4', {
      fileName: 'Big-Buck-Bunny.mp4'
    });
  });

  Meteor.publish('files.images.all', function () {
    return imagesCollection.collection.find();
  });

  Meteor.publish('files.videos.all', function () {
    return videosCollection.collection.find();
  });
} else {
  // Subscribe to file's collections on Client
  Meteor.subscribe('files.images.all');
  Meteor.subscribe('files.videos.all');
}

Client's code:

// imports/client/file/file.js
import '/imports/client/file/file.html';
import imagesCollection from '/imports/lib/collections/images.collection.js';

Template.file.helpers({
  imageFile() {
    return imagesCollection.findOne();
  },
  videoFile() {
    return videosCollection.findOne();
  }
});

For more expressive example see Streaming demo app

Create collection available to Client and Server

// imports/lib/collections/images.collection.js
import { Meteor } from 'meteor/meteor';
import { FilesCollection } from 'meteor/ostrio:files';
const imagesCollection = new FilesCollection({ collectionName: 'images' });

if (Meteor.isServer) {
  // Load sample image into FilesCollection on server's startup:
  Meteor.startup(async () => {
    await imagesCollection.loadAsync('https://raw.githubusercontent.com/veliovgroup/Meteor-Files/master/logo.png', {
      fileName: 'logo.png',
    });
  });

  Meteor.publish('files.images.all', function () {
    return imagesCollection.collection.find();
  });
} else {
  // Subscribe on the client
  Meteor.subscribe('files.images.all');
}

Create template, call .link method on the FileCursor returned from file helper

<!-- imports/client/file/file.html -->
<template name='file'>
  <a href="{{file.link}}?download=true" download="{{file.name}}" target="_parent">
    {{file.name}}
  </a>
</template>

Create controller for file template with file helper that returns FileCursor with .link() method

// imports/client/file/file.js
import '/imports/client/file/file.html';
import imagesCollection from '/imports/lib/collections/images.collection.js';

Template.file.helpers({
  file() {
    return imagesCollection.findOne();
  }
});

For more expressive example see Download demo

1. Where are files stored by default?: by default if config.storagePath isn't set in Constructor options it's equals to assets/app/uploads and relative to running script:
   • a. On development stage: yourDevAppDir/.meteor/local/build/programs/server. Note: All files will be removed as soon as your application rebuilds or you run meteor reset. To keep your storage persistent during development use an absolute path outside of your project folder, e.g. /data directory.
   • b. On production: yourProdAppDir/programs/server. Note: If using MeteorUp (MUP), Docker volumes must to be added to mup.json, see MUP usage
2. Cordova usage and development: With support of community we do regular testing on virtual and real devices. To make sure Meteor-Files library runs smoothly in Cordova environment — enable withCredentials; enable {allowQueryStringCookies: true} and {allowedOrigins: true} on both Client and Server. For more details read Cookie's repository FAQ
3. meteor-desktop usage and development: Meteor-Files can be used in meteor-desktop projects as well. As meteor-desktop works exactly like Cordova, all Cordova requirements and recommendations apply
4. How to pause/continue upload and get progress/speed/remaining time?: see FileUpload instance returned from insertAsync method
5. When using any of accounts packages - package accounts-base must be explicitly added to .meteor/packages above ostrio:files
6. cURL/POST uploads - Take a look on POST-Example by @noris666
7. In Safari (Mobile and Desktop) for DDP chunk size is reduced by algorithm, due to error thrown if frame is too big. This issue should be fixed in Safari 11. Switching to http transport (which has no such issue) is recommended for Safari. See #458
8. Make sure you're using single domain for the Meteor app, and the same domain for hosting Meteor-Files endpoints, see #737 for details
9. When requests are proxied to FilesCollection endpoint make sure protocol http/1.1 is used, see #742 for details

• Ask a question or submit an issue
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• For more docs and examples read wiki

Fully-featured file-sharing app:

• Live: files.veliov.com
• Source Code Rep

Other demos:

• Simplest Upload demo app
• Simplest Download demo
• Simplest Streaming demo app

• pyfiles (meteor-python-files) Python Client for Meteor-Files package
• meteor-autoform-file - Upload and manage files with autoForm

• 🗃️ Upload and share files using meteor-files.com — Continue interrupted file uploads without losing any progress. There is nothing that will stop Meteor from delivering your file to the desired destination
• 👨‍💻 Improve your project using ostr.io for Server Monitoring, Web Analytics, WebSec, Web-CRON and SEO Pre-rendering
• 💵 Sponsor via GitHub
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• Want to help? Please check issues for open and tagged as help wanted issues;
• Want to contribute? Read and follow PR rules. All PRs are welcome on dev branch. Please, always give expressive description to your changes and additions.

We would like to thank everyone who support this project

• @vanshady
• @Neophen
• @rikyperdana
• @derwok, check out his project - 4minitz
• @FinnFrotscher
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• @themeteorchef
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