Serverless S3 Uploader CDK

This is a project inspired by Serverless S3 Uploader development with CDK.

The Serverless S3 Uploader allows you to upload JPG files to Amazon S3 buckets from your web applications using pre-signed URLs.

The cdk.json file tells the CDK Toolkit how to execute your app.

Requirements

• AWS CLI already configured with Administrator permission
• NodeJS 12.x installed

Installation

$ npm install

Useful commands

• npm run build compile typescript to js
• npm run watch watch for changes and compile
• npm run test perform the jest unit tests
• cdk deploy deploy this stack to your default AWS account/region
• cdk diff compare deployed stack with current state
• cdk synth emits the synthesized CloudFormation template

Sequence

sequenceDiagram
participant C as Client
participant A as API Gateway
participant L as Lambda
participant S as S3
C ->> A: Get Pre-signed URL
A ->> L: Call handler
L ->> A: Return Pre-signed URL
A ->> C: Response Pre-signed URL
C ->> S: PUT object to Pre-signed URL

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Reference

• Serverless S3 Uploader
• AWS CDK Developer Guide