basic

Connecting to MongoDB

An example of how you would connect to MongoDB and perform basic CRUD operations.

Requirements

• MongoDB version 4 and above.

Setup

1. Launch a shell session and start MongoDB (server) via Docker:

   $ docker-compose up
   

2. You can connect to Mongo via the console:

   $ docker exec -it mongo mongo -u nobody -p secrets go-recipes
   

3. You can press CTRL-C and CTRL-D on the mongo-server and mongo-cli respectively to stop the containers. Don't forget to remove the containers as well.

   $ # This should remove both mongo-server and mongo-cli
   $ docker-compose down
   

4. Run Go programL

   $ go run ./main.go
   

5. Alternatively, you can run everything with the following command.

   $ make
   

Notes

• We deliberately hard code the password to connect to MongoDB to keep the sample code simple and easy to understand. Do not do this in your code, especially production code.

Reference and Credits

• MongoDB Connection String URI
• MongoDB Go Driver API Guide
• Stackoverflow: How to Create a DB for MongoDB