AWS Serverless Microservices with Patterns and Best Practices - Developing updateProduct CRUD Methods for Product Lambda

The video tutorial covers the implementation of the update HTTP method for a product microservice using AWS Lambda and DynamoDB. It begins with an introduction to the update method, followed by modifying the switch statement to accommodate the HTTP PUT request. The tutorial then reviews best practices and example implementations from the AWS Developer Guide. It proceeds to implement the update product function, detailing the setup of parameters and execution of the update command using the DynamoDB client SDK. The video emphasizes the importance of correctly setting up parameters and importing necessary modules.

What is the primary focus of the update HTTP method in the context of DynamoDB?

• Retrieving items

• Deleting items

• Updating existing items

• Creating new items

Which HTTP method is used to update an existing product in the product microservices?

• DELETE

• PUT

• POST

• GET

What is the purpose of verifying HTTP methods in the product microservices?

• To ignore existing methods

• To create new methods

• To delete unnecessary methods

• To ensure all methods are implemented

Which guide is referred to for best practices in updating items in DynamoDB?

• AWS Lambda Guide

• DynamoDB Developer Guide

• API Gateway Guide

• AWS S3 Guide

What is the first step in implementing the update product function?

• Deleting the old item

• Logging the event

• Sending the update request

• Creating a new table

In the update product function, what is the purpose of the try-catch block?

• To create new items

• To delete items

• To log successful updates

• To handle errors during the update operation

What is the role of the 'key' parameter in the update item command?

• To create a new item

• To specify the table name

• To delete the item

• To identify the item to be updated

Which method is used to send the update request to DynamoDB?

• Lambda invoke method

• API Gateway send method

• S3 upload method

• DynamoDB client send method

What is the significance of the 'expression attribute values' in the update item command?

• To create new tables

• To delete items

• To log updates

• To specify conditions for updates

What is the final step in the update item command process?

• Deleting the old item

• Returning the update result to the client

• Creating a new item

• Logging the update