PutItem (creating items) in DynamoDB - Mini Project: Build & Apply

Create and Add Items to a DynamoDB Table

📖 Scenario: You are managing a small online bookstore. You want to store information about books in a DynamoDB table. Each book has a unique BookID, a Title, and an Author.

🎯 Goal: Build a DynamoDB PutItem request step-by-step to add a new book item with exact attributes to the table.

📋 What You'll Learn

Create a dictionary called book_item with keys BookID, Title, and Author and their exact string values.

Create a variable called table_name and set it to the exact string Books.

Create a dictionary called put_request that uses book_item as the Item value.

Create a dictionary called params with the key TableName set to table_name and the key Item set to book_item.

💡 Why This Matters

🌍 Real World

Adding items to a DynamoDB table is a common task when storing data for web applications, such as product catalogs or user profiles.

💼 Career

Understanding how to structure PutItem requests is essential for backend developers working with AWS DynamoDB to manage data storage.

1

Create the book item dictionary

Create a dictionary called book_item with these exact key-value pairs: 'BookID': {'S': 'B001'}, 'Title': {'S': 'The Great Gatsby'}, and 'Author': {'S': 'F. Scott Fitzgerald'}.

DynamoDB

# Create the book_item dictionary with exact keys and values
# Your code here

Need a hint?

Remember, DynamoDB expects attribute values as dictionaries with the type as key, like {'S': 'string value'}.

2

Set the table name

Create a variable called table_name and set it to the string 'Books'.

DynamoDB

book_item = {
    'BookID': {'S': 'B001'},
    'Title': {'S': 'The Great Gatsby'},
    'Author': {'S': 'F. Scott Fitzgerald'}
}
# Create the table_name variable with value 'Books'
# Your code here

Need a hint?

Use a simple string assignment for the table name.

3

Create the PutItem request dictionary

Create a dictionary called put_request with a single key Item set to the book_item dictionary.

DynamoDB

book_item = {
    'BookID': {'S': 'B001'},
    'Title': {'S': 'The Great Gatsby'},
    'Author': {'S': 'F. Scott Fitzgerald'}
}
table_name = 'Books'
# Create put_request dictionary with key 'Item' set to book_item
# Your code here

Need a hint?

The put_request dictionary should have exactly one key: Item.

4

Create the final parameters dictionary

Create a dictionary called params with keys 'TableName' set to table_name and 'Item' set to book_item.

DynamoDB

book_item = {
    'BookID': {'S': 'B001'},
    'Title': {'S': 'The Great Gatsby'},
    'Author': {'S': 'F. Scott Fitzgerald'}
}
table_name = 'Books'
put_request = {'Item': book_item}
# Create params dictionary with keys 'TableName' and 'Item'
# Your code here

Need a hint?

This dictionary is what you would pass to the DynamoDB client to add the item.