Lambda Page Rendering using jsdom

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Improve page rendering implemented mentioned in Qiita Using jsdom.

Features

• Faster dump speed than using phantomjs
• Supports POST, GET, and possible other types of protocols
• Customizable connection delay time and rendering waiting time

Installation

npm install
npm run test

Usage

https://{your_lambda_endpoint}?url={URL_ENCODED}[&delay={SECOND}][&method={METHOD}[&dataType={DATA_TYPE}]][&wait={WAIT_SECOND}]

• URL_ENCODED: target url using encodeURIComponent(url) or something equivalent

• SECOND: optional, number of seconds allowed for waiting, default value = '5'

• METHOD: optional, currently only support GET and POST, default value = GET

• DATA_TYPE: optional, either json or form, only available when METHOD=POST. default value = form

• WAIT_SECOND: optional, time (second) to wait for rendering html, default value = 1

Deployment

First pack whole project as zip:

zip -r lambda.zip jsdomrenderer

and create Lambda function:

export AWS_DEFAULT_REGION=us-east-1
aws lambda create-function \
--region us-east-1 \
--function-name jsdomrenderer \
--zip-file fileb://lambda.zip \
--role role-arn \
--handler jsdomrenderer.lambdaHandler \
--runtime nodejs6.10 \
--profile adminuser

For more information, see CreateFunction. AWS Lambda creates the function and returns function configuration information.

or use cloudformation:

Create new s3bucket

aws s3 mb s3://bucket-name --region region

And get code-uri:

aws cloudformation package \
   --template-file template.yaml \
   --output-template-file serverless-output.yaml \
   --s3-bucket s3-bucket-name

Finally deploy using:

aws cloudformation deploy \
   --template-file serverless-output.yaml \
   --stack-name new-stack-name \
   --capabilities CAPABILITY_IAM

See Create Serverless Application for more information.