Serverless Framework AWS NodeJS Example

This is a working copy of an image post processor (see branch feature/working). Once deployed, this function will create an

• S3 bucket with an Event Notification (filter on uploaded/)
• Lambda Function
• A Lambda execution role
• CloudWatch log stream

Create a serverless application

In order to create an empty serverless application you can either -

• Use your custom serverless application template

serverless create --template-url <some_github_repo> --path <your_new_serverless_app>

• Use a standard serverless template

serverless

This should offer you a bunch of options. For this excercise, choose "AWS - Node.js - Starter" Now enter an application name eg. "<>-image-post-processor"

NOTE: If using a common (organisation) account, prefix the application name with your initials eg "devendra-image-post-processor". This is to avoid any stack namespace clashes.

Say no to login/register to the serverless dashboard Say no to deploying your project

Packaging the serverless application

serverless package --aws-profile personal --region ap-southeast-2 --stage dev

Deploying the serverless "service"

serverless deploy --aws-profile personal --region ap-southeast-2 --stage dev

Invoking the serverless "function"

serverless invoke --function postProcessor --aws-profile personal --region ap-southeast-2

Invoking a local serverless "function"

serverless invoke local --function postProcessor --aws-profile personal --region ap-southeast-2

Invoking a local serverless "function" with data

serverless invoke local --function postProcessor --aws-profile personal --region ap-southeast-2 --path lib/eventData.json

Tailing serverless "function" logs

serverless logs -f postProcessor -t --aws-profile personal --region ap-southeast-2

Deploying the serverless "function"

serverless deploy function -f postProcessor --aws-profile personal --region ap-southeast-2 --stage dev

Deleting the serverless "function"

serverless remove --aws-profile personal --region ap-southeast-2 --stage dev

Setting an AWS Profile on MacOS

export AWS_PROFILE=personal

Uploading an image to an S3 bucket

aws s3 cp ../../../../Downloads/mug-shot.jpg s3://your-bucket-name-here/uploaded/mug-shot.jpg

Installing a serverless binary MacOS

curl -o- -L https://slss.io/install | bash