uploader

uploader

Serverless web application for uploading files to S3

Deploy with CloudFormation

Prerequisites: Node.js and AWS CLI installed

• Create an AWS Account and IAM User with the AdministratorAccess AWS Managed Policy
• Run aws configure to put store that user's credentials in ~/.aws/credentials
• Create an S3 bucket for storing the Lambda code and store its name in a shell variable with:
  • export CODE_BUCKET=bucket
• Create an S3 bucket for saving the uploaded files, store its name in shell variable:
  • export DEST_BUCKET=bucket
• Npm install:
  • npm install
• Build:
  • npm run build
• Upload package to S3, transform the CloudFormation template:
  • npm run package
• Deploy to CloudFormation:
  • npm run deploy

Deploy from the AWS Serverless Application Repository

• Create the code and destination buckets
• Hit "Deploy" from the application page

Use

• Go to API Gateway in the AWS Console to find the invoke URL and open it in your browser.
• Files you upload will be stored in the configured S3 bucket
• Optionally, you can set up a custom domain

Links

• serverless-galleria on Github
• uploader on the AWS Serverless Application Repository

Limitations

Uploads happen in a single post. The lambda invocation payload limit is 6 MB, and it gets transferred into lambda with base64 encoding, which adds 33% overhead, in addition to the rest of the payload. The expected maximum upload size is around 4 MB.

License

© 2017-2023 Evan Chiu. This project is available under the terms of the MIT license.