All Technologies Used
Motivation
To create a flexible and scalable solution capable of managing billing operations for public organizations. The goal was to enable seamless integration with payment systems, handle high-volume invoice processing, and provide robust APIs for external services.
Main Challenges
The system had to process thousands of invoices efficiently using batch flows. Azati implemented Spring Batch and asynchronous integration patterns to manage scheduled and event-driven operations.
Handling real-time and asynchronous communications with an external payment gateway required robust error handling and retries. The team implemented Spring Integration flows and retry mechanisms to ensure message delivery and processing.
Business rules varied across clients and had to be validated at multiple stages. Custom validation and calculation layers were developed within the service architecture to ensure accurate billing and compliance.
Key Features
- Microservice-Like Modular Architecture: Although part of a larger monolith, the module was designed to be self-contained and focused on billing, with a clean separation of responsibilities.
- REST API for CRUD Operations and Filters: CExposed interfaces to manage business and payment entities with create, read, update, delete, sort, and filter operations.
- Batch Invoice Processing: Scheduled execution of large invoice flows using Spring Batch to handle payments, deposits, settlements, and retries.
- Asynchronous Communication with Payment Gateway: Message-based integration enabled reliable and non-blocking interaction with external systems.
- Business Logic Layer: Included complex logic for validations, payment attempts, and financial workflows.
- Collaborative Development Environment: Agile methodology with two-week sprints, daily standups, retrospectives, task grooming, and close collaboration with the system architect.
Our Approach
Project Impact
Reliable and Scalable Billing System: The implemented solution successfully handled complex billing needs for public organizations and was capable of scaling with growing demand.
Improved Integration with Payment Gateways: Enabled seamless and secure money transfers, settlements, and automated payment retries through robust integration.
Optimized Business Processes: The automation of key billing processes reduced manual overhead and errors, thereby increasing overall efficiency and customer satisfaction.
Stable Operations through Asynchronous Processing: Reduced system downtime and load peaks with asynchronous communication and batch scheduling.
Knowledge-Driven Development: Regular architectural consultations and team rituals ensured high-quality deliverables aligned with long-term system goals.