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Explanation

A Micro Frontend architecture can use React for the frontend and independent Spring Boot or FastAPI services for backend functionality. Each frontend domain can communicate with its corresponding backend service.

Code:

React Micro Frontends
├── Product App  → Spring Boot / FastAPI
├── Cart App     → Spring Boot / FastAPI
├── Payment App  → Spring Boot / FastAPI
└── Account App  → Spring Boot / FastAPI

Explanation

A React Micro Frontend can communicate with a Spring Boot REST API to retrieve or modify backend data.

Code:

React Product App
        ↓
GET /api/products
        ↓
Spring Boot API
        ↓
Database

Explanation

A React Micro Frontend can also communicate with a FastAPI backend using REST APIs. FastAPI provides endpoints that the frontend can call using fetch or another HTTP client.

Code:

React Cart App
        ↓
GET /api/cart
        ↓
FastAPI
        ↓
Database

Explanation

Each Micro Frontend can work with an independent backend service. This allows teams to own both the frontend feature and its backend functionality.

Code:

Product Team
React Product App
       ↓
Spring Boot Product API

Cart Team
React Cart App
       ↓
FastAPI Cart API

Explanation

A scalable architecture can combine React Micro Frontends, Spring Boot or FastAPI services, an API Gateway, and databases. Each business domain can evolve independently while the user experiences one application.

Code:

                    React Host
                        │
        ┌───────────────┼───────────────┐
        ↓               ↓               ↓
   Product App      Cart App       Payment App
        │               │               │
        ↓               ↓               ↓
 Spring Boot        FastAPI        Spring Boot
 Product API        Cart API       Payment API
        │               │               │
        └───────────────┼───────────────┘
                        ↓
                   API Gateway