As the “front door” for applications to access data, business logic, or functionality from backend services.
When using API Gateway, you can create RESTful APIs and WebSocket APIs to enable real-time bidirectional communication applications.
API Gateway supports containerized, serverless workloads, and web applications.

Point-in-Time Recovery (PITR) is a crucial data recovery feature for AWS DynamoDB and other database services.
It allows you to restore data to a previous state in case of accidental loss or corruption, ensuring business continuity.
PITR also enables regular data backups and retention of multiple versions, aiding in error tracking and resolution.
It’s flexibility in restoring data on demand without affecting other operations enhances system reliability and stability.

Used for big data architecture

Using the AWS Pricing Calculator , you can estimate the cost of cloud architecture through a data center perspective.

Used for sending SMS or E-mail as well as push notifications: Simple Notification Service

Amazon Cognito : When traffic comes in, identity verification must be done first to confirm access to AWS cloud resources.

I always had a question “Should I use value for type in struct? Or using pointer?”
After reading many different projects on the web, it seems that they all have different practices.
Until I recently encountered a problem that gave me some ideas.