lambduh-put-s3-object

lambduh-s3-put-object

Upload an object to S3.

Install

npm i --save lambduh-put-s3-object

Usage

var Q = require('q');
var upload = require('lambduh-put-s3-object');
 
//your lambda function
exports.handler = function(event, context) {
 
  upload(null, {
    dstBucket: "destination-bucket",
    dstKey: "path/to/s3/upload/key.txt",
    uploadFilepath: "/tmp/path/to/local/file.txt"
  })
  .then(function(result) {
  	context.done()
  }).fail(function(err) {
  	context.done(err);
  });
}

This module expects three fields on the passed options object: .dstBucket, .dstKey, and .uploadFilepath

By default this will use the default region the lambda operates in. If you need to operate on an S3 bucket in another region you can set the region field on the options object: .region.

It will upload an object at the specified filepath to S3 at the specifed bucket, key and region (if specified).

Metadata

You can pass addional metadata on your object by specifying a Metadata object in your params for example

options= {
      dstBucket: testBucketName,
      dstKey: "my-red-lil-key.png",
      uploadFilepath: "/tmp/my-red-lil-key.png",
      Metadata: {
        language :'EN',
        dialect:'us',
        encoding: 'utf8',
        client_class:'premium'
      }

Like most things in AWS, Metadata is fraught with subtle nightmares, read here for all the things you can get wrong.

For the gist, AWS will add x-amz-meta as a prefix to all of your metadata, and make it all lowercase. It won't accept non ascii metadata and it may or may not tell you about it. See the tests for an example of how to use it.

Full disclosure

This module's tests don't yet cover the aws-sdk implementation - only the validation and other basic things.

I'm hoping to get back to this soon....