AWS Serverless Microservices with Patterns and Best Practices - Analyzing Ordering Microservices Use Cases for Our E-Com

The video tutorial covers the implementation of use cases for an ecommerce service application, focusing on both synchronous and asynchronous communication. It details the infrastructure development using AWS CDK, the design of DynamoDB tables, and the setup of API Gateway methods. The tutorial emphasizes the importance of partition and sort keys in DynamoDB and demonstrates how to expose get methods for client applications. The final sections consolidate the infrastructure setup for ordering microservices.

What are the two main use cases for the e-commerce service application?

• Synchronous and asynchronous communication

• Batch processing and real-time processing

• Data warehousing and data mining

• Machine learning and artificial intelligence

Which AWS service is used for asynchronous communication in the application?

• Amazon EventBridge

• Amazon S3

• Amazon RDS

• Amazon SNS

What is the primary key for the order table in DynamoDB?

• Order ID

• Username and order date

• Email address

• Total price

Which AWS service is used to develop the infrastructure for the application?

• AWS CloudFormation

• AWS CDK

• AWS Lambda

• AWS EC2

What methods are exposed by the API Gateway for the ordering microservices?

• GET and GET by username

• GET and POST

• PUT and PATCH

• POST and DELETE

Why are both partition and sort keys required for querying the DynamoDB?

• To reduce storage costs

• To ensure data integrity

• To improve query performance

• To filter and retrieve specific data

What is the role of the sort key in the order table?

• To store the payment info

• To store the order date

• To store the total price

• To store the email address