meteor-uploader

Renders an upload button so you can upload files from the browser to the cloud (currently only s3)

Server Configuration

Uploader.config
  key: "my-key"
  secret: "my-secret"
  bucket: "my-bucket"

Client-side Example

The uploader helper can be rendered via the inclusion helper, which will display a default button. You can use it as a block helper to specify a custom button or anchor tag.

Settings configuration:

name: Unique name per uploader on page. (Required)
multiple: Allow multiple file selection.
accept: Comma-separated list of unique content type specifiers. See more here.
directory: Directory to place files in your bucket
onSelection: Callback fired when files are selected from dialog.
onUpload: Callback after uploaded. Called once for each file. Contains the new URL of the uploaded file.
manipulateImage: If specified, this callback will be called with the following arguments for image manipulation:
- dataURL: {String} Base64 data URI of the uploaded image
- file: {Object} File object
- upload: {Function} Call this function after you have modified the image, passing it the DataURL of the modified image.

<template name="MyTemplate">
  <!-- show default button -->
  {{> uploader settings=forProfilePic}}

  <!-- OR -->

  <!-- show custom button -->
  {{#uploader settings=forProfilePic}}
  <button class="btn btn-block btn-lg btn-green">
    <i class="fa fa-upload"></i> Upload Profile Image
  </button>
  {{/uploader}}
</template>

# Example setup that uses the third-party caman.js library
# to resize the image before uploading

Template.MyTemplate.helpers
  forProfilePic: ->
    name: "profilePic"
    multiple: true
    directory: profilePics
    accept: "image/*"
    onSelection: (fileList) ->
      console.log fileList
    manipulateImage: (dataURL, fileInfo, upload) ->
      img = new Image()
      img.onload = ->
        Caman @, ->
          @resize height: 100
          @render ->
            upload @canvas.toDataURL(fileInfo.type)
      img.src = dataURL
    onUpload: (error, result) ->
      if result
        console.log result
        Session.set "profilePicUrl", result

Methods

You can delete files from s3 using the "uploaderDelete" method:

Meteor.call "uploaderDelete", s3Url

AWS S3 Setup

CORS Setup

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
  <CORSRule>
    <AllowedOrigin>*</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
  </CORSRule>
</CORSConfiguration>

S3 Bucket Policy

Add to your S3 bucket policy. Change "BUCKET_NAME" to the name of the bucket you're applying the policy to.

{
  "Version": "2008-10-17",
  "Id": "Policy1401826004702",
  "Statement": [
    {
      "Sid": "Stmt1401825990142",
      "Effect": "Allow",
      "Principal": {
        "AWS": "*"
      },
      "Action": "s3:GetObject",
      "Resource": "arn:aws:s3:::BUCKET_NAME/*"
    }
  ]
}