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Web Stock Scraper

This is a very exaggerated and unnecessary way of implementing a simple web scraper that will periodically check if an item is in stock. But, I have no social life so might as well over-engineer something for vibes. After all, don't we all want to be 10x engineers 🙂

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How It Works

  1. AWS EventBridge Trigger: An EventBridge event triggers the Lambda function every 5 minutes.
  2. Lambda Function: The Lambda function makes a request to check if the item is in stock.
  3. Check Stock: If the item is in stock, the Lambda function publishes a message to an AWS SNS topic.
  4. SNS Subscription: There is a subscription (Pub/Sub) to the SNS topic that sends out an email informing about the item's availability.

CI/CD Components

  • CloudWatch Logs: Logs are generated for Lambda function invocations and events.
  • GitHub: The source code is stored in GitHub for version control.
  • CDK and CloudFormation: Infrastructure is defined as code using CloudFormation or CDK.
  • CodeBuild: CodeBuild is used for building and testing the code.
  • CodePipeline: CodePipeline automates the CI/CD process.

Additional Information

Project Structure

This is a Java project with the following structure:

  • cdk.json: Configuration file for the CDK Toolkit.
  • pom.xml: Maven configuration for building and managing dependencies.
  • src/: Source code directory containing your CDK stack implementations.
  • README.md: Project documentation.

Useful Commands

  • mvn package: Compile and run tests.
  • cdk ls: List all stacks in the app.
  • cdk synth: Emit the synthesized CloudFormation template.
  • cdk deploy: Deploy this stack to your default AWS account/region.
  • cdk diff: Compare deployed stack with the current state.
  • cdk docs: Open CDK documentation.