AWS CLI for DynamoDB - Mini Project: Build & Apply

AWS CLI for DynamoDB

📖 Scenario: You are working as a cloud engineer. Your team uses AWS DynamoDB to store user data. You need to practice using the AWS Command Line Interface (CLI) to manage DynamoDB tables and items.

🎯 Goal: Learn how to create a DynamoDB table, add items, query items, and update table settings using AWS CLI commands.

📋 What You'll Learn

Use AWS CLI commands to create and manage DynamoDB tables

Create a table with a primary key

Insert items into the table

Query items by primary key

Update table throughput settings

💡 Why This Matters

🌍 Real World

Managing DynamoDB tables and items via AWS CLI is common for automation, scripting, and quick management without using the AWS Console.

💼 Career

Cloud engineers and developers often use AWS CLI to manage DynamoDB resources efficiently in real projects.

1

Create a DynamoDB table

Use the AWS CLI command aws dynamodb create-table to create a table named Users with a primary key called UserId of type S (string). Set the read and write capacity units to 5 each.

DynamoDB

# Use aws dynamodb create-table with TableName 'Users', KeySchema with 'UserId' as HASH, AttributeDefinitions for 'UserId' as S, and ProvisionedThroughput with ReadCapacityUnits and WriteCapacityUnits set to 5
# Your code here

Need a hint?

Remember to specify the table name, attribute definitions, key schema, and provisioned throughput exactly as shown.

2

Add an item to the Users table

Use the AWS CLI command aws dynamodb put-item to add an item to the Users table. The item should have UserId set to user123 and Name set to John Doe.

DynamoDB

aws dynamodb create-table --table-name Users --attribute-definitions AttributeName=UserId,AttributeType=S --key-schema AttributeName=UserId,KeyType=HASH --provisioned-throughput ReadCapacityUnits=5,WriteCapacityUnits=5
# Use aws dynamodb put-item to add UserId 'user123' and Name 'John Doe' to the Users table
# Your code here

Need a hint?

Use JSON format for the item attributes with correct data types.

3

Query the item by UserId

Use the AWS CLI command aws dynamodb get-item to retrieve the item from the Users table where UserId is user123.

DynamoDB

aws dynamodb create-table --table-name Users --attribute-definitions AttributeName=UserId,AttributeType=S --key-schema AttributeName=UserId,KeyType=HASH --provisioned-throughput ReadCapacityUnits=5,WriteCapacityUnits=5
aws dynamodb put-item --table-name Users --item '{"UserId": {"S": "user123"}, "Name": {"S": "John Doe"}}'
# Use aws dynamodb get-item to get the item with UserId 'user123' from Users table
# Your code here

Need a hint?

Use the --key option with JSON specifying the primary key to get the item.

4

Update the table's provisioned throughput

Use the AWS CLI command aws dynamodb update-table to change the Users table's read capacity units to 10 and write capacity units to 5.

DynamoDB

aws dynamodb create-table --table-name Users --attribute-definitions AttributeName=UserId,AttributeType=S --key-schema AttributeName=UserId,KeyType=HASH --provisioned-throughput ReadCapacityUnits=5,WriteCapacityUnits=5
aws dynamodb put-item --table-name Users --item '{"UserId": {"S": "user123"}, "Name": {"S": "John Doe"}}'
aws dynamodb get-item --table-name Users --key '{"UserId": {"S": "user123"}}'
# Use aws dynamodb update-table to set ReadCapacityUnits to 10 and WriteCapacityUnits to 5 for Users table
# Your code here

Need a hint?

Use the update-table command with the correct provisioned throughput values.