ivankaptue / demo-springboot-aws-s3-db

Store sales processing

Use case

We have stores that must upload sales report as csv file everyday in our storage space (AWS S3 bucket). This service will take all the files of all stores every day and save sales in our local database.

Once the data is saved, it is exposed via a Rest API to the various consumers

Make it run in local

1. Update application.yml to set your local configurations
2. Run the commands below to start PostgreSQL in docker container, run flyway migrations scripts and then run the application

• make start-db to start postgresql in docker container and apply flyway migrations
• mvn clean install to build
• mvn spring-boot:run to run

Stack

• Java17
• Springboot 3+
• AWS S3 - Storage service to get file from
• PostgreSQL - RDBMS to store sales
• Flyway - Used for migration
• Docker-compose - Used for local setup

Challenges

• 100% Jacoco test coverage
• 100% Mutation coverage (Pitest)
• Cucumber and Testcontainers for automated acceptance tests
• CI pipeline using GitHub Actions
• Cron job for daily build
• Cypress for e2e API Testing