Usage no npm install needed!

<script type="module">
  import s3uploadCoffeeJavascript from 'https://cdn.skypack.dev/s3upload-coffee-javascript';
</script>

README

s3upload-coffee-javascript

Client Side S3 CORS Upload for Amazon S3 - CoffeeScript and JavaScript Class

Here is my blog post explaining all the implementation details

http://codeartists.tumblr.com/post/36892733572/how-to-directly-upload-files-to-amazon-s3-from-your

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.