Architecture & Infrastructure
Overview
Authentify It has been designed with a pragmatic yet scalable architecture that balances operational efficiency with future-proof flexibility. The current infrastructure leverages modern cloud services while maintaining simplicity in deployment and operations, ensuring that the engineering team can focus on product delivery and innovation rather than infrastructure overhead.
1. Cloud Infrastructure
The platform runs on DigitalOcean App Platform, a fully managed Platform-as-a-Service (PaaS) that simplifies application deployment and container orchestration. Both backend and frontend services are deployed on App Platform, benefiting from automated scaling, container management, and integration with source control for seamless deployments.
For database management, MongoDB Atlas has been chosen as the managed database provider, offering high availability, global distribution, and advanced security features out of the box. This combination ensures reliability and flexibility while minimizing the operational burden of database management.
2. Application Architecture
Authentify It currently operates on a modular monolithic architecture built with NestJS. This structure allows for clean separation of concerns through multiple controllers while retaining the simplicity of a unified codebase.
All APIs are REST-based, ensuring interoperability and simplicity for both internal and external integrations. For each backend service, a dedicated frontend application built in Next.js provides performant and scalable user interfaces.
The decision to remain monolithic at this stage enables faster development cycles and reduced complexity, with the ability to gradually evolve towards a microservices approach if scaling requirements demand it in the future.
3. Data & Storage
Data storage relies on MongoDB Atlas for primary application data, ensuring scalability and resilience. To complement this, Redis hosted on DigitalOcean provides in-memory caching, reducing query latency and optimizing performance.
A Cloudflare caching layer is integrated into the architecture to offload traffic, improve global performance, and ensure resilience against traffic spikes.
For asset and file management, Firebase is used to handle file storage and distribution, providing a reliable and developer-friendly solution for managing user-facing assets.
Ressources:
DatabaseFirebaseData models:
App
REST API (private)Studio
REST API (private)4. Scalability & Resilience
Scalability is primarily handled by DigitalOcean App Platform’s auto-scaling capabilities, which dynamically adjust container instances based on CPU thresholds. This ensures the platform can gracefully handle variations in traffic without manual intervention.
The deployment process is tightly integrated with Git repositories. Whenever changes are merged into a target branch, App Platform automatically triggers a deployment. In case of deployment failures, the system automatically preserves the previously running stable version, ensuring continuity of service without downtime.
Multiple environments are supported internally, enabling the team to validate changes before production releases while keeping the operational process streamlined.
5. Future Evolution
While the current architecture has been intentionally kept lean, the infrastructure has been designed with evolution in mind. Over time, the system may incorporate:
Migration from monolithic to service-oriented or microservices architecture for higher scalability.
Enhanced observability and monitoring solutions to strengthen system reliability.
Adoption of more advanced rollback strategies (e.g., blue-green deployments or canary releases).
Possible integration of Kubernetes or other orchestration platforms for finer control at scale.
This flexibility ensures that Authentify It can adapt seamlessly as user demand grows and as the business evolves.
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