Last year, I had to build a couple of simple Express+Mongo API's. For convenience, I used Docker Compose to set up the necessary environments.

I thought this boilerplate may also benefit others to quickly start developing their APIs.

The project includes:

• docker-compose.yml file for booting up a Node and MongoDB containers
• a modified Dockerfile for installing packages and setting up ports for debugging
• Nodemon to follow changes in projects
• Logic to connect to DB
• Example controllers for fetching data from MongoDB
• launch.json for simple NodeJS debugging in VS Code

Link to the boilerplate:
https://github.com/kethmars/docker-compose-express-mongo

Have fun :)!