S3 Proxy API in API Gateway/Lambda

• Need to re-deploy after turn on AWS API Gateway Binary Support.
• The current serverless-offline plugin(3.8.3) does not have Binary Support as AWS API Gateway does.
• Because of that the logic is different for PUT/POST methods to S3.
• Because of that the GET method to access a S3 resource in offline mode will retrieve base64.

1. Preparation

1-1. Install serverless

frameworkVersion: ">=1.0.0 <2.0.0"

$ npm install -g serverless

1-2. AWS credential configure

• $ aws configure --profile default
• Make sure you have the specified profile which is used in serverless.yml
• $ cat ~/.aws/credentials

2. Local Test

2-1. Start serverless offline mode

$ sls offline

2-2. GET from S3

$ curl -v -H "Accept: application/octet-stream" http://localhost:3000/<bucket>/<key> | openssl base64 -A -d > <localfile_path>

$ curl -v -H "Accept: application/octet-stream" http://localhost:3000/training-sally/1487366163793 | openssl base64 -A -d > test.pdf

$ curl -v -H "Accept: application/octet-stream" http://localhost:3000/training-sally/1487369499363 | openssl base64 -A -d > test.zip

2-3. PUT to S3

$ curl -v -H "Content-Type:application/octet-stream" -X PUT --data-binary "@<localfile_path>" localhost:3000/<bucket>

$ curl -v -H "Content-Type:application/octet-stream" -X PUT --data-binary "@./data/doc.pdf" localhost:3000/training-sally

$ curl -v -H "Content-Type:application/octet-stream" -X PUT --data-binary "@./data/test.pdf.zip" localhost:3000/training-sally

2-4. POST to S3

$ curl -v -H "Content-Type:application/octet-stream" -X POST --data-binary "@<localfile_path>" localhost:3000/<bucket>/<key>

$ curl -v -H "Content-Type:application/octet-stream" -X POST --data-binary "@./data/doc.pdf" localhost:3000/training-sally/doc.pdf

$ curl -v -H "Content-Type:application/octet-stream" -X POST --data-binary "@./data/test.pdf.zip" localhost:3000/training-sally/test.pdf.zip

3. AWS Deployment & Test

3-1. deploy to AWS

Need to add Binary support and re-deploy!

• $ sls deploy
• Login to AWS and go to API Gateway console
• Add / as a media type under the Binary Support section of this API.
• $ sls deploy

3-2. GET from S3

• $ curl -v -H "Accept: application/octet-stream" https://z4bf9rzv53.execute-api.ap-northeast-1.amazonaws.com/dev/training-sally/doc.pdf -o 1487350952348.pdf
• Or paste the url in browser directly.

3-3. PUT to S3

$ curl -v -H "Content-Type:application/octet-stream" -X PUT --data-binary "@<localfile_path>" https://<api_gateway_path>/dev/<bucket>

$ curl -v -H "Content-Type:application/octet-stream" -X PUT --data-binary "@./data/doc.pdf" https://z4bf9rzv53.execute-api.ap-northeast-1.amazonaws.com/dev/training-sally

$ curl -v -H "Content-Type:application/octet-stream" -X PUT --data-binary "@./data/test.pdf.zip" https://z4bf9rzv53.execute-api.ap-northeast-1.amazonaws.com/dev/training-sally

$ curl -v -H "Content-Type:application/octet-stream" -X PUT --data-binary "@./data/pic.png" https://z4bf9rzv53.execute-api.ap-northeast-1.amazonaws.com/dev/training-sally

3-4. POST to S3

$ curl -v -H "Content-Type:application/octet-stream" -X POST --data-binary "@<localfile_path>" <api_gateway_path>/dev/<bucket>/<key>

$ curl -v -H "Content-Type:application/octet-stream" -X POST --data-binary "@./data/doc.pdf" https://z4bf9rzv53.execute-api.ap-northeast-1.amazonaws.com/dev/training-sally/doc.pdf

$ curl -v -H "Content-Type:application/octet-stream" -X POST --data-binary "@./data/test.pdf.zip" https://z4bf9rzv53.execute-api.ap-northeast-1.amazonaws.com/dev/training-sally/test.pdf.zip

$ curl -v -H "Content-Type:application/octet-stream" -X POST --data-binary "@./data/pic.png" https://z4bf9rzv53.execute-api.ap-northeast-1.amazonaws.com/dev/training-sally/pic.png

TODO:

• 1. Upgrade to future serverless-offline plugin for offline mode's Binary Support.
• 2. PUT mode for multipart upload.
• 3. Check how to specify metadata like file name.