Rapido is the virtual funds transfer app built using Microservices architecture, written in .NET 8.0.

Each service is an independent web application with its custom architecture, and the overall integration between the services is mostly based on the event-driven approach with shared contracts.

Depending on the service complexity, different architectural styles are being used, including simple CRUD approach, along with CQRS, Clean Architecture and Domain-Driven Design.

The database is being used is PostgreSQL & EntityFrameworkCore as ORM, moreover application uses Redis as a cache.

An API Gateway acts as a single entry point for clients to access microservices in a system. It routes requests to the appropriate microservices using YARP as revese proxy.

Autonomous applications with the different set of responsibilities, decoupled from each other - there's reference between the services and shared packages, and the synchronous communication & asynchronous integration (via events) is based on shared contracts approach.

Customers - managing the customers (create, verify, lock).

Users - managing the users/identity (register, login, permissions etc.).

Wallets - managing the wallets and owners, responsible for fund transfers(transfer, add, deduct (funds))

Payments - managing the deposits and withdrawals from account(integrated with stripe).

Notifications - sending notifications via email (transfer confirmation, account verification, password recovery etc).

Sample Saga pattern implementation for transactional handling the business processes spanning across the distinct modules.

The set of shared components for the common abstractions & cross-cutting concerns. In order to achieve even better decoupling and decentralization, it's split into the separate projects.