Oculus

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An oculus is Latin for “eye” symbolizing vision and insight. This project is designed to give developers a clear view into building scalable microservices.

About

Oculus is a scalable microservices template built with NestJS, RabbitMQ, PostgreSQL, and Redis. It provides an efficient and developer-friendly foundation for building distributed systems, supporting both Docker and Kubernetes deployments. The system now leverages Minio for object storage, offering a reliable and scalable solution for handling files across services.

Key Changes:

1- Kafka → RabbitMQ Migration:

• The description now mentions RabbitMQ instead of Kafka.
• To make it easier to develop.

Getting Started

git clone https://github.com/Jeccoman/oculus.git

cd oculus
pnpm i
docker-compose up --build # For the first add the --build

Web UI Tools

Note: The following ports (8087, 15679 and 5549) are defined in the docker-compose file.

PgAdmin

• URL: http://localhost:8087/
• Authentication:

username: test@test.com
password: randompassword2
connection:
  host-name_address: postgres
  port: 5432
  username: postgres
  password: randompassword

Rabbitmq UI

• URL: http://localhost:15679/
• Authentication:

username: user
password: randompassword

Redis UI

• URL: http://localhost:5549/
• Authentication:

username: user
password: randompassword
connection:
  host: redis
  port: 6379
  username: none
  password: none

Minio

• URL: http://localhost:9101/
• Authentication: Note: connect to minio on port 9101 and create an Access Key

username: admin
password: randompassword

mcli alias set oculus http://localhost:9100 admin randompassword

Project Structure

oculus
|
├── apps
│   ├── auth
│   │   ├── Dockerfile
│   │   ├── Dockerfile.dev
│   │   ├── package.json
│   │   ├── src
│   │   ├── test
│   │   └── tsconfig.app.json
│   │   └── .env
│   ├── storage
│   │   ├── Dockerfile
│   │   ├── Dockerfile.dev
│   │   ├── package.json
│   │   ├── src
│   │   ├── test
│   │   └── tsconfig.app.json
│   │   └── .env
│   └── store
│       ├── Dockerfile
│       ├── Dockerfile.dev
│       ├── package.json
│       ├── src
│       ├── test
│       └── tsconfig.app.json
│       └── .env
├── docker-compose-test.yaml
├── docker-compose.yaml
├── init-scripts
│   └── seed-data.sql
├── init-scripts-test
├── libs
│   └── common
│       ├── src
│       └── tsconfig.lib.json
├── migrations
│   ├── developing
│   │   ├── auth
│   │   ├── storage
│   │   └── store
│   ├── production
│   │   ├── auth
│   │   ├── storage
│   │   └── store
│   └── stage
│       ├── auth
│       ├── storage
│       └── store
├── package.json
├── tsconfig.build.json
└── tsconfig.json
└── .env
└── .env.test
└── .env.migration.developing
└── .env.migration.stage
└── .env.migration.production

Services

Auth

• Support dynamic access (role)
• Support auto Caching

Storage

• Based on MinIO (S3 Object Storage)
• Support multiple file formats:
  • Images: jpg, jpeg, png, bmp, tiff, gif, webp
  • Documents: doc, docx, xlsx, pdf, txt, rtf
  • Media: mp3, wav, mp4, avi, avi, mkv
  • Compressed: zip, rar, tar, 7z, gz
• Support public and private files
• Support resizing and changing the quality of images on download routes
• Support caching on the download routes
• Unique route to upload all files
• Unique route to download all files (if the file is an image type, the system will automatically consider caching and editing utitlies for the file)

Store

• Support fully Pagination
• Support auto Caching

Swaggers

• Auth Service: http://localhost:3000/docs#/
• Store Service: http://localhost:3001/docs#/
• Storage Service: http://localhost:3002/docs#/

Postman

Online Link :

Download json files directly:Oculus

• Collections
• Admin User Environment
• Internal User Environment
• Regular User 1 Environment
• Regular User 2 Environment

Migration

There is possible to generate and run migration files on different branches separetly (developing, stage, production)

1. Create environment files - .env.migration.developing - .env.migration.stage - .env.migration.production example:

POSTGRES_HOST=localhost
POSTGRES_PORT=5436
POSTGRES_USERNAME=postgres
POSTGRES_PASSWORD=randompassword
# POSTGRES_SYNCHRONIZE=true
POSTGRES_SYNCHRONIZE=false
POSTGRES_AUTO_LOAD_ENTITIES=true

2. Edit the 'POSTGRES_ENTITIES' parameter inside the package.json file according to your entities
3. Generate and run the migratinos

# Developing
npm run migration:generate:developing
npm run migration:run:developing

# Stage
npm run migration:generate:stage
npm run migration:run:stage

# Production
npm run migration:generate:production
npm run migration:run:production

Cache Manager

1. Only GET endpoints are cached.
2. Use @NoCache() decorator to bypass the caching system for specific endpoints.
3. Use @GeneralCache() decorator to cache the endpoint without including the user's token in the cache key.
4. Services caching status:

Service Name	Module	Cache Status	Decorator	Note
Auth	auth	not cached	@NoCache()
Auth	users	cached		are cached according to user's token
Auth	accesses	cached		are cached according to user's token
Store	categories	cached	@GeneralCache()
Store	products	cached	@GeneralCache()
Store	orders	not cached	@NoCache()
Store	payments	not cached	@NoCache()
Storage		not cached

🧪 Run Tests

✅ Unit Tests

Run unit tests:

pnpm run test

🔄 End-to-End (E2E) Tests

1️⃣ Start required services (database, Redis, etc.) in Terminal 1:

docker-compose -f ./docker-compose-test.yaml up

2️⃣ Run E2E tests in Terminal 2:

pnpm run test:e2e

Roadmap

• App microservices
• Common libraries
• Logger
• Communication between microservices
• Authentication (JWT, Cookie, Passport)
• Dynamic roles (Access)
• TypeORM Postgresql
  • Entities
  • Migrations on every branch separately
• Docker-compose
• Env
• Document
  • GitHub README
  • Postman
  • Auto generated swagger
• Test
• Cache Manager (Redis)
• K8S

TODO

• Fix Get OTP to expire its session
• Make full_name nullable
• Support pagination for list endpoints
• Return 401 Unauthorized for unknown-user login attempts
• Generate a valid 5-digit OTP consistently
• Category Tree
• Expand auth unit and e2e coverage
• Refresh Token
• K8S deployment setup

Contributing

Contributions are welcome! Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests.

License

This project is licensed under the MIT License - see the LICENSE.md file for details.

Change log

3.1.1 (2026-03-22)

• Hardened auth login to return 401 Unauthorized for unknown users instead of failing on missing credentials state.
• Fixed OTP generation to always produce a valid 5-digit code.
• Added focused auth service unit tests for invalid login handling and OTP generation.
• Added nested category tree support with parent-child category relationships and a GET /categories/tree endpoint.

3.0.0 (2025-02-23)

• Supporting Pagination for list retrieval endpoints.
• Sending EVENT_NAME_USER_CREATED and EVENT_NAME_USER_UPDATED from the 'auth' service to the 'store' service to update users.

2.1.2 (2025-02-17)

• Transition from JWT_SECRET into JWT_PUBLIC_KEY and JWT_PRIVATE_KEY
• Fxied access guard
• Fixed cache manager and added FoceToClearCache decorator
• Added new API route to edit user access /users/{id}/access

2.1.1 (2025-02-16)

• Improved the Health Check API to monitor infrastructure connections, including RabbitMQ, PostgreSql and Redis.

2.1.0 (2025-02-16)

• Moved entity files into their respective service directories.
• Fixed the migration script

2.0.2 (2025-02-13)

• Added some unit and e3e tests

2.0.1 (2025-01-27)

• Added database seed data during intializing (docker-compose)
• Renamed cannotBeDeleted field to cannot_be_deleted
• Added downloadable Postman files

2.0.0 (2025-01-26)

• Migrated from saving files on disk to leveraing the Minio for object storage.

1.0.0 (2025-01-25)

• Migrated from Kafka to RabbitMQ.
• Changed the 'hasFullAccess' field to 'has_full_access' in the access entity.

0.0.2 (2025-01-25)

• Added a caching prefix to support separation of multiple branches in production.
• Added Redis Insight to the docker-compose file to provide a GUI for Redis.

0.0.1 (2024-06-04)

• Initial release.