Redirects each customer to match an available attendant.
Once a match was found, both participants are notified and connected to a video call session.

https://github.com/Rosnaldo/callqueue

Track and audit call sessions for per-minute credit billing.

https://github.com/Rosnaldo/call-center

The project is just a compile setup of everything I have being learning in the process.

• containerized services.
• keycloak (manage user authentication, registration and sessions).
• API protected by authentication middleware.
• DB only accessable via service.
• nginx redirects domain access to internal services.
• dockerfiles supports three environments: local, development, and production.
• frontends are provisioned by cloudfront.
• special admin frontend for easy UI management.
• monorepo sharing dependencies between multiple modules.

https://github.com/Rosnaldo/call-center

• Backend can only be ssh accessed via bastion host.
• Backend allows frontend http requests on port 80.
• Frontend and bastion host inside a public subnet and backend inside a private subnet.
• Nginx redirects frontend requests to Api in a isolated URL.
• Nginx allow https access to frontend on port 443.
• IG allows public subnet to access internet.
• NAT Gateway allows private subnet to access internet.
• Api access DynamoDB via VPC endpoint.

https://github.com/Rosnaldo/aws-labs/tree/main/two-tier/simple

A microservice high scalable to convert HTML into PDF.

• The SQS receives a HTML as input.
• SQS triggers EventBridge Pipe which then creates ECS Controller.
• ECS controller manages the ECS Generate PDF and ECS Merge PDF.
• ECS controller pulls SQS and creates ECS Generate PDF instances and wait them to finish the tasks.
• The number of ECS Generate instances depends on the number of PDF pages.
• ECS Generate PDF polls SQS messages and uses the HTML to generate PDF using puppetter browser chromium and then stores on S3.
• Once all PDF pages are created ECS Controller creates the ECS Merge PDF.
• ECS Merge PDF merges all pages into one final PDF.

https://github.com/Rosnaldo/aws-labs/tree/main/pdf-generator