backend.md

• High-Level Architecture
• Main System Components
• AWS Services
• ai_caller_service
• download_service
• Preprocessing and Augmentation Flow
• URL Endpoints

High-Level Architecture

Main System Components

There are 4 main service components in the backend system:

• core_service: Processing the request from the client and sending the task to the corresponding service.
• ai_caller_service: Managing the connection between the AWS service and the AI tasks and updating the progress from the AI service.
• ai_service: Execution of AI tasks such as preprocessing or augmentation.
• download_service: Supporting the download progress.

AWS Services

We list the AWS services used in this system:

• API Gateway: Defining the URL endpoint.
• Lambda: Processing a customer request.
• Cognito: Managing user authentication.
• S3, Elastic File System: Managing data storage.
• EC2: Deployment of ai_caller_service, download_service, and ai_task.
• DynamoDB: Managing NoSQL database.
• SES: Managing transactional emails.
• SQS: Managing message queuing.
• KMS: Key management for encryption and decryption.
• CloudWatch: Monitoring our AWS resources and applications.
• Amplify: Deploying the React-based interface.

ai_caller_service

Detailed documentation can be found here.

download_service

Detailed documentation can be found here.

Preprocessing and Augmentation Flow

URL Endpoints

The full list of URL endpoints can be found here.