📊 From Zero ➡️ Hero: Master MongoDB Aggregation Challenges 💪

Hello there, brave soul! Have you ever looked at MongoDB’s aggregation framework and thought, “Nope, not today”? Well, you’re not alone. But let me let you in on a little secret: It’s not as scary as it seems! In fact, with a sprinkle of humor and a dash of patience, we’re going to make you say, “Oohh, I finally get it!” by the end of this guide. So, grab your favorite beverage, and let’s embark on this adventure together!

Setting the Scene

Before we dive in, let’s familiarize ourselves with some sample database schemas that we’ll use throughout our examples:

1. Users Collection

• userID: Unique identifier
• name: Full name of the user
• age: Age of the user
• hobbies: An array of hobbies
• address: Embedded document with fields like city, state, and zip.

1. Orders Collection

• orderID: Unique identifier
• userID: Reference to the Users collection
• products: An array of products purchased
• totalAmount: Total order amount

1. Products Collection

• productID: Unique identifier