Transition to Microservices Architecture

[BrosG]

Description
In order to improve scalability, fault isolation, and make it easier for teams to work independently on different parts of the application, I propose we transition the current monolithic architecture to a microservices architecture.

Proposed Microservices

User Service: Manages user operations (registration, login, profile updates, etc.).

Wallet Service: Handles all wallet-related operations.

Campaign Service: Manages campaign-related operations.

Notification Service: Handles notifications to users.

Blockchain Service: Handles interactions with the blockchain and smart contracts.

Authentication Service: Manages authentication and authorization operations.

Implementation Steps

Define Microservices: Extract functionalities from the monolithic application to their corresponding microservices.

Design Microservices:
Design each microservice to be self-contained with its own database, and to handle HTTP requests and responses. Consider using REST or GraphQL for APIs.

Develop Microservices: Refactor the existing code as necessary and develop each microservice separately.

Deploy Microservices: Use Docker to package each application and its dependencies into a single container. Use Kubernetes for orchestration.

Implement Service Discovery: Use a service discovery system like Eureka or Consul to help services find each other.

Implement API Gateway: Use an API gateway like Zuul or Kong to route requests to the appropriate services and handle cross-cutting concerns.

Manage Data: Make sure each microservice has its own database to ensure services are decoupled and independent.

Implement Centralized Logging and Monitoring: Use tools like Prometheus, Grafana, and the ELK Stack to log and monitor microservices performance.

Considerations

Transitioning to a microservices architecture is a significant task. Microservices come with their own complexities, such as data management across services, service discovery, and increased deployment complexity. We should evaluate whether this architectural style suits our project's needs and our team's capabilities before proceeding.