Technical Specification

Architecture Overview

The system follows a modular, service-oriented architecture for managing benefit schemes, applications, and configurations for the UBI Provider platform. It consists of:

• Frontend applications

• Backend services

• Headless CMS

• PostgreSQL database

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Components & Interactions

• Benefits Provider App (React) communicates with Provider Backend (NestJS).

• Provider Backend uses Catalog Manager APIs (from Strapi CMS via Provider Middleware) to fetch and manage benefit catalogs, applications, and configurations.

• Both Strapi (Catalog Manager) and Provider Backend persist data in PostgreSQL databases.

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Components & Tech Stack

1. Benefits Provider App

• Built with React (v18), Vite, and Chakra UI.

• Consumes REST APIs from Provider Backend for:

  • Benefit listing

  • Application submission

  • Status tracking

• Key technologies:

  • React: Frontend component library

  • Vite: Build tool and development server

  • React Router DOM: Routing for React apps

  • Chakra UI: UI component library

  • TypeScript (v5): Type safety

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2. Provider Backend

• Built with NestJS (v11), exposes REST APIs for the frontend.

• Integrates with Catalog Manager (Strapi CMS) via Provider Middleware APIs.

• Uses Prisma ORM with PostgreSQL for data persistence.

• Provides Swagger API documentation.

• Key technologies:

  • NestJS: Backend framework

  • PostgreSQL: Relational database

  • Prisma ORM: Database abstraction

  • Swagger: API documentation

  • Scheduling (NestJS): Cron-like job handling

  • Axios / HTTP client: External requests

  • TypeScript (v5): Type safety

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3. Catalog Manager

• Headless CMS built with Strapi.

• Manages benefit catalogs and configurations.

• Uses PostgreSQL for database storage.

• Key technologies:

  • Node.js (v18+): Runtime environment

  • Strapi: Headless CMS framework

  • PostgreSQL: Database driver

  • React / React Router DOM: For CMS frontends (if needed)