MongoDB - Lab 1

In this lab session, we will explore MongoDB by setting up a Docker MongoDB instance using the provided command. We will cover the following:

1. Launching a Docker MongoDB Container
2. Connecting to the MongoDB Instance using the MongoDB Shell (mongosh)
3. Creating a Database and a Collection
4. Inserting and Querying Documents

1. Starting MongoDB

Steps

1. Start up Docker
2. Open your Terminal

3. Execute the following command

   docker run -d --name mongodb-instance -p 27017:27017 mongo
   

   Info

   This command creates a Docker container named "mongodb-instance" running the MongoDB image, mapping port 27017 on your host to port 27017 inside the container, and running MongoDB in the background.

Expected results

• The terminal will show the container ID

2. Connecting to the MongoDB Instance

Steps

1. Open the Terminal (or stay in the same Terminal window)
2. Execute the following command

docker exec -it mongodb-instance mongosh

Expected results

• The following information in the Terminal

  Current Mongosh Log ID: 651983f1eda3dad76726cddf
  Connecting to:      URL to MongoDB
  Using MongoDB:      7.0.1
  Using Mongosh:      1.10.6
  

3. Create a database and a collection

Steps

1. Create a database named workspace by running the following command in the MongoDB Shell

   use workplace;
   

2. Create a collection called people by running the following command in the MongoDB Shell

   db.createCollection("people");
   

Expected results

• Two logs in your Terminal related to the previous commands

  switched to db workplace;
  { ok: 1 }
  

4. Inserting and Querying Documents

Steps

1. Insert the following documents to the people collection, using the MongoDB Shell

   db.people.insertOne({ name: "Alice", age: 30 });
   
   db.people.insertMany([
       { name: "Bob", age: 25 },
       { name: "Charlie", age: 35 }
   ]);
   

2. Query the documents, to prove that they were successfully inserted, by running the following command into the MondBD Shell

   db.people.find();
   

Expected results

• The following information in the Terminal

  [
      { _id: ObjectId("651985c0eda3dad76726cde0"), name: 'Alice', age: 30 },
      { _id: ObjectId("651985c1eda3dad76726cde1"), name: 'Bob', age: 25 },
      {
          _id: ObjectId("651985c1eda3dad76726cde2"),
          name: 'Charlie',
          age: 35
      }
  ]