Advanced questions
These are optional questions and challenges about this application. Click the chevron icon next to each question to see additional hints.
Question 1
In frontend build step, you want add CLI command `npm audit` during the frontend build step. How would you do that?
- Check the “Build settings” menu in the Amplify project. Edit the App build specification section.
Question 2
Which resources are deployed in the ride-controller folders? What is the responsibility of this stack?
- Check the file
1-app-deploy/ride-controller/template.yaml.
- Examine the two
AWS::Serverless::Function resources. Look at the code (from the CodeUri property) and how it is triggered (from the Events property).
Question 3
You extracted the variable $DDB_TABLE with this code: DDB_TABLE=$(aws cloudformation describe-stack-resource --stack-name theme-park-backend --logical-resource-id DynamoDBTable --query "StackResourceDetail.PhysicalResourceId" --output text). Can you explain what it does? If you want to extract other resources, how would you change the command?
$(...COMMAND...) is called “Command substitution”. It runs the command inline and save the output of that command in DDB_TABLE (instead of outputting to the terminal).- Go to the CloudFormation console, check the
theme-park-backend, and choose the Resources tab.
- Change
--logical-resource-id DynamoDBTable to --logical-resource-id UserPool. What is the returned value?