Go MongoDB Project

Overview

This project demonstrates how to build a Go server that interacts with MongoDB using the go-mongo-driver. The server manages a MongoDB database called movieDB, which includes two collections: movies and casts.

• Movies Collection: Contains information about movies, including a reference to the casts collection.
• Casts Collection: Contains information about the cast members of each movie.

Data Models

type Movie struct {
	ID              primitive.ObjectID `bson:"_id,omitempty"`
	Title           string             `json:"title"`
	Year            int                `json:"year"`
	Genres          []string           `json:"genres"`
	Href            string             `json:"href"`
	Extract         string             `json:"extract"`
	Thumbnail       string             `json:"thumbnail"`
	ThumbnailWidth  int                `json:"thumbnail_width"`
	ThumbnailHeight int                `json:"thumbnail_height"`
	CastID          primitive.ObjectID `bson:"cast_id,omitempty"`
}

type Cast struct {
	ID      primitive.ObjectID `bson:"_id,omitempty"`
	MovieID primitive.ObjectID `bson:"movie_id"`
	Cast    []string           `json:"cast"`
}

Setup

Prerequisites

• Go (1.17 or later)
• Docker
• Docker Compose

Running the Server

1. Start MongoDB Containers

Before running the server, make sure MongoDB is running. Use Docker Compose to start MongoDB containers:

make mongodb-up

2. Seed MongoDB

After the MongoDB container is up, seed your MongoDB with initial data:

make mongodb-seed

3. Run the Go Server

Start the Go server:

make run

4. Stopping MongoDB

To stop and remove MongoDB containers:

make mongodb-down

Postman API Collection

For API testing, a Postman collection is provided in the /docs folder of the project. Import the collection into Postman, and you'll be able to test the available API endpoints easily.

Steps to import in Postman:

1. Open Postman.
2. Click on "Import" in the top left.
3. Select "File" and upload the Postman collection from the /docs folder.
4. Once imported, you can try out the API requests directly in Postman.

Configuration

The server configuration is specified in the config.json file, which includes necessary details such as MongoDB connection parameters and server settings. Ensure that this file is set up correctly before running the server.

Makefile Targets

Target	Description
run	Runs the Go server using the configuration file.
mongodb-seed	Seeds MongoDB with initial data.
mongodb-up	Starts MongoDB containers using Docker Compose.
mongodb-down	Stops and removes MongoDB containers.

Troubleshooting

If you encounter issues, ensure the following:

1. MongoDB is running: Use the make mongodb-up command to start the MongoDB containers.
2. Configuration file is correct: Double-check the config.json file for any misconfigurations.
3. Docker and Docker Compose are properly installed: Ensure that Docker and Docker Compose are installed and set up on your system.