Use an NPM package like json-server to get db.json running as a mock rest API.
Assume that these 5 reviews have just landed in the database. Non of them are live yet. Using Node or PHP, write a script that goes through each review and scans it for the bad words in the words array.
If a review matches a bad word, it should not go live and a message should be sent to a Slack channel (e.g. #bad-reviews). Feel free to use a standard Slack package like slack-node-sdk or maknz/slack.
If a review passes the test, the live field should be updated to true.
Reviews with IDs 1 and 4 should pass the test and go live. The others should fail.
Good luck!