{"id":29328799,"url":"https://github.com/lokie-codes/my_digital_bank","last_synced_at":"2026-04-08T20:45:52.816Z","repository":{"id":303049767,"uuid":"1014243249","full_name":"Lokie-codes/My_Digital_Bank","owner":"Lokie-codes","description":"End-to-end microservices-based digital banking platform built with React, Django REST, Spring Boot, Kafka, gRPC, PostgreSQL, Redis, and Docker Compose.","archived":false,"fork":false,"pushed_at":"2025-07-05T11:16:29.000Z","size":41,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2025-07-05T11:41:24.181Z","etag":null,"topics":["django","django-rest-framework","grpc","jaavscript","java","python","react","restful-api","springboot"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Lokie-codes.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2025-07-05T10:26:59.000Z","updated_at":"2025-07-05T11:18:04.000Z","dependencies_parsed_at":"2025-07-05T11:51:58.371Z","dependency_job_id":null,"html_url":"https://github.com/Lokie-codes/My_Digital_Bank","commit_stats":null,"previous_names":["lokie-codes/my_digital_bank"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/Lokie-codes/My_Digital_Bank","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Lokie-codes%2FMy_Digital_Bank","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Lokie-codes%2FMy_Digital_Bank/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Lokie-codes%2FMy_Digital_Bank/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Lokie-codes%2FMy_Digital_Bank/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Lokie-codes","download_url":"https://codeload.github.com/Lokie-codes/My_Digital_Bank/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Lokie-codes%2FMy_Digital_Bank/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":264155095,"owners_count":23565302,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["django","django-rest-framework","grpc","jaavscript","java","python","react","restful-api","springboot"],"created_at":"2025-07-07T22:37:09.335Z","updated_at":"2026-04-08T20:45:52.752Z","avatar_url":"https://github.com/Lokie-codes.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Digital Banking Application\n\nAn end-to-end microservice-based digital banking platform, with:\n\n- **Frontend**: React SPA  \n- **API Gateway \u0026 Auth**: Django REST (JWT)  \n- **Core Services**: Spring Boot microservices for Accounts, Transactions, Notifications  \n- **Messaging**: Kafka (async events) \u0026 gRPC (sync calls)  \n- **Persistence**: PostgreSQL per service, Redis cache  \n- **Containerization**: Docker \u0026 Docker Compose\n\n---\n\n## Table of Contents\n\n1. [Architecture](#architecture)  \n2. [Tech Stack](#tech-stack)  \n3. [Prerequisites](#prerequisites)  \n4. [Getting Started](#getting-started)  \n5. [Environment Variables](#environment-variables)  \n6. [Docker Compose](#docker-compose)  \n7. [Service Details](#service-details)  \n8. [API Endpoints](#api-endpoints)  \n9. [Running Migrations \u0026 Superuser](#running-migrations--superuser)  \n10. [Accessing the App](#accessing-the-app)  \n11. [Project Structure](#project-structure)  \n12. [Troubleshooting](#troubleshooting)  \n13. [Contributing](#contributing)  \n14. [License](#license)  \n\n---\n\n## Architecture\n\n```\n┌─────────┐      ┌─────────────┐\n│ React   │◀────▶│ Django REST │  Authentication \u0026 API Gateway\n└─────────┘      └─────────────┘\n     │                │\n     ▼                ▼\n┌───────────────┐   ┌───────────────┐\n│ Transaction   │─▶ │ Account       │   (gRPC sync calls)\n│ Service       │   │ Service       │\n└───────────────┘   └───────────────┘\n     │   ▲                │\n     │   │                ▼\n     │   │           ┌───────────────┐\n     │   └─────────▶ │ Notification  │   (Kafka consumers)\n     │               │ Service       │\n     ▼               └───────────────┘\n┌───────────────┐\n│ PostgreSQL    │  (per service)\n│ \u0026 Redis       │\n└───────────────┘\n      │\n      ▼\n   Kafka\n```\n\n---\n\n## Tech Stack\n\n- **Frontend**: React, Axios/gRPC-Web, React Router, React Context  \n- **Auth/API Gateway**: Django, Django REST Framework, SimpleJWT, django-redis  \n- **Services**: Spring Boot, Spring Data JPA, gRPC (yidongnan starter), Spring Kafka  \n- **Database**: PostgreSQL  \n- **Cache**: Redis  \n- **Messaging**: Kafka \u0026 Zookeeper  \n- **Containerization**: Docker, Docker Compose  \n\n---\n\n## Prerequisites\n\n- Docker \u0026 Docker Compose (v1.27+)  \n- (Optional) Java 17 SDK \u0026 Maven (for local builds)  \n- Node.js 18+ \u0026 npm/yarn (for local frontend dev)  \n\n---\n\n## Getting Started\n\n```bash\n# 1. Clone the repo\ngit clone https://github.com/your-org/digital-banking-app.git\ncd digital-banking-app\n\n# 2. Copy \u0026 edit .env files if needed\ncp auth_service/.env.example auth_service/.env\ncp frontend/.env.example frontend/.env\n\n# 3. Start databases \u0026 message broker\ndocker-compose up -d postgres-account postgres-transaction postgres-auth redis zookeeper kafka\n\n# 4. Run migrations \u0026 create superuser\n./migrations.sh       # applies Django \u0026 other migrations\n./superuser.sh        # bootstraps Django superuser\n\n# 5. Launch all services\ndocker-compose up -d\n```\n\n---\n\n## Environment Variables\n\nEach service reads its own `.env` (or compose `environment:`). Key vars include:\n\n| Service             | Variable                         | Description                     |\n|---------------------|----------------------------------|---------------------------------|\n| **auth (Django)**   | `POSTGRES_HOST`, `POSTGRES_DB`   | Auth DB connection              |\n|                     | `REDIS_URL`                      | Redis cache/session store       |\n|                     | `DJANGO_SUPERUSER_*`             | Auto-create admin user          |\n| **account-service** | `DB_HOST`, `DB_NAME`, `DB_USER`  | Accounts DB                     |\n|                     | `KAFKA_BOOTSTRAP_SERVERS`        | Kafka broker address            |\n| **transaction-service** | `DB_HOST`, `DB_NAME`, `DB_USER`| Transactions DB                 |\n|                     | `ACCOUNT_SERVICE_HOST`, `ACCOUNT_SERVICE_PORT` | gRPC lookup   |\n|                     | `KAFKA_BOOTSTRAP_SERVERS`        | Kafka                           |\n| **notification-service** | `KAFKA_BOOTSTRAP_SERVERS`    | Kafka                           |\n|                     | `MAIL_HOST`, `MAIL_PORT`, `MAIL_USER`, `MAIL_PASS` | SMTP config |\n\nRefer to each service’s `application.yml` or `settings.py` for full details.\n\n---\n\n## Docker Compose\n\nThe top-level `docker-compose.yml` defines:\n\n- **zookeeper \u0026 kafka**  \n- **postgres-account**, **postgres-transaction**, **postgres-auth**  \n- **redis**  \n- **auth**, **account-service**, **transaction-service**, **notification-service**  \n- **frontend**\n\nBring up everything with:\n\n```bash\ndocker-compose up -d\n```\n\nTear down with:\n\n```bash\ndocker-compose down\n```\n\n---\n\n## Service Details\n\n- **auth** (Django REST)  \n  - Port **8000**  \n  - Endpoints: `/api/auth/login/`, `/api/auth/me/`, `/api/auth/logout/`\n\n- **account-service** (gRPC + Kafka)  \n  - gRPC port **9090**  \n  - Exposes `GetBalance`, `UpdateBalance`, `ListStatements`\n\n- **transaction-service** (REST + gRPC + Kafka)  \n  - HTTP port **9092**: `POST /api/transactions`\n\n- **notification-service** (Kafka consumer)  \n  - gRPC port **9093** (unused)  \n  - Listens on topics `transactions` \u0026 `account-updates`\n\n- **frontend** (React)  \n  - HTTP port **3000**\n\n---\n\n## API Endpoints\n\n### Authentication (Django)\n\n```http\nPOST /api/auth/login/\nContent-Type: application/json\n\n{\n  \"username\": \"admin\",\n  \"password\": \"YourSecureP@ssw0rd\"\n}\n```\n\nReturns:\n```json\n{ \"access\": \"...\", \"refresh\": \"...\" }\n```\n\n### Transactions (Spring Boot)\n\n```http\nPOST http://localhost:9092/api/transactions\nContent-Type: application/json\nAuthorization: Bearer \u003caccess_token\u003e\n\n{\n  \"accountId\": \"1234\",\n  \"amount\": 500.0,\n  \"type\": \"DEBIT\"\n}\n```\n\nResponse:\n```json\n{ \"transactionId\": \"...\", \"newBalance\": 1500.0 }\n```\n\n---\n\n## Running Migrations \u0026 Superuser\n\n- **Django** migrations /\tsuperuser:\n```\ndocker-compose run auth_service python manage.py makemigrations users\ndocker-compose run auth_service python manage.py migrate\ndocker-compose run auth_service python manage.py createsuperuser\n```\n\n- **Spring Boot** services auto-apply schema updates (`spring.jpa.hibernate.ddl-auto=update`).\n\n---\n\n## Accessing the App\n\n- **React UI**:  `http://localhost:3000`  \n- **Django Admin**: `http://localhost:8000/admin`  \n- **Jaeger UI** (if enabled): `http://localhost:16686`  \n- **Prometheus** (if enabled): `http://localhost:9090`  \n\n---\n\n## Project Structure\n\n```\n├── auth_service/\n├── account-service/\n├── transaction-service/\n├── notification-service/\n├── frontend/\n└── docker-compose.yml\n```\n\nEach directory contains its own Dockerfile, source code, and config.\n\n---\n\n## Troubleshooting\n\n- **Ports in use**: ensure no other processes on 3000, 8000, 9090–9093.  \n- **DB startup**: if Django fails to connect, increase wait in `migrations.sh`.  \n- **Kafka errors**: verify Zookeeper \u0026 Kafka health via logs.  \n\n---\n\n## Contributing\n\n1. Fork ▶️ Clone ▶️ Create feature branch  \n2. Build \u0026 test locally with Docker Compose  \n3. Open a Pull Request  \n\nPlease follow existing code style \u0026 write tests for new features.\n\n---\n\n## License\n\nThis project is MIT-licensed. See [LICENSE](LICENSE) for details.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flokie-codes%2Fmy_digital_bank","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flokie-codes%2Fmy_digital_bank","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flokie-codes%2Fmy_digital_bank/lists"}