I did so many changes to improve the code, but if you want to see a basic version of how to implement an endpoint to download a CSV file with TDD, TestContainer, Docker and SpringBoot. Follow the link below

Go to Brach - basic version csv downloader

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[![CI - Gradle]

First setup

Copy the file .env-sample and rename the copy to .env. Now you need open a new Terminal and in the root of project use.

. ./.env

To export the environment variables.

Use make for ease your life

If you have make installed it will call maven and docker for you

Try to see the commands

make 

Run the project

make dk-build up

A little tips, if you use make restart it's the quick step to up the app