There are react frontend application with express backend application.

Express backend application relies on ProspectAI API and designed to verify emails. Backend provides two endpoints:

• GET /email-verifications - returns an email verification history.
• POST /email-verifications - sends new email to ProspectAI API.

All email verifications results stores to database available in docker stack. The database schema consist of 2 tables: email and email_verification.

React frontend application allows customer:

• browse email verification history
• preview email verification details
• add verify new email

Application infrastructure is launching with docker-compose.yml: docker-compose up -d. Postman Collection is available in ./postman

1. Copy .env.dist > .env
2. Fill PROSPECT_API_KEY, PROSPECT_BASE_URL with given values.
3. Run docker-compose up -d

1. Fill result saving class with necessary fields on POST:/email-verification.
2. Implement server side validation for requested email on POST:/email-verification.
3. Implement bulk processing on POST:/email-verification.
4. Implement server side pagination on GET:/email-verification
5. Advanced: implement async processing on POST:/email-verification (ideas: queue, db & cron script, redis)