Reference Architectures & Blueprints

Proven architectural patterns for common SaaS functionality. Battle-tested designs that accelerate development and reduce technical risk.

introduction

Multi-Tenant SaaS Architecture

Advanced

Complete architecture for scalable multi-tenant SaaS applications with data isolation and shared infrastructure.

keyFeatures

  • Tenant management and onboarding
  • Database-level data isolation
  • Tenant-specific configurations
  • Cross-tenant analytics
  • Resource usage tracking
  • Tenant lifecycle management

coreComponents

Tenant Registration ServiceData Isolation LayerTenant Configuration APIUsage Monitoring DashboardBilling Integration

techStack

Node.jsPostgreSQLRedisDockerAWS

useCase

SaaS platforms serving multiple customer organizations with strict data separation requirements.

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Subscription Billing System

Intermediate

End-to-end subscription management with flexible pricing models, usage tracking, and automated billing.

keyFeatures

  • Flexible pricing plans
  • Usage-based billing
  • Proration calculations
  • Dunning management
  • Tax calculation
  • Payment retry logic

coreComponents

Plan Management APIUsage Tracking ServiceBilling EnginePayment ProcessingInvoice Generation

techStack

Node.jsStripe APIPostgreSQLRedisWebhooks

useCase

SaaS products with subscription models, usage-based pricing, or complex billing requirements.

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Real-time Analytics & Reporting

Advanced

Live dashboard system with custom metrics, alerts, and data export capabilities for SaaS analytics.

keyFeatures

  • Real-time event tracking
  • Custom dashboard builder
  • Automated alerts
  • Data export & API
  • Cohort analysis
  • A/B testing metrics

coreComponents

Event Collection APIStream Processing EngineDashboard BuilderAlert ManagerExport Service

techStack

Node.jsClickHouseKafkaReactD3.js

useCase

SaaS products requiring real-time insights, user behavior analytics, or business intelligence.

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Authentication & RBAC System

Intermediate

Comprehensive authentication with role-based access control, SSO integration, and security features.

keyFeatures

  • Multi-factor authentication
  • Role-based permissions
  • SSO integration (SAML/OAuth)
  • Session management
  • Audit logging
  • Password policies

coreComponents

Authentication ServiceAuthorization EngineSSO IntegrationSession ManagerAudit Logger

techStack

Node.jsJWTOAuth 2.0PostgreSQLRedis

useCase

SaaS applications requiring enterprise-grade security, team management, or SSO integration.

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Notification & Communication Hub

Intermediate

Multi-channel notification system with preferences, templates, and delivery tracking.

keyFeatures

  • Email, SMS, push notifications
  • Template management
  • User preferences
  • Delivery tracking
  • A/B testing for messages
  • Unsubscribe management

coreComponents

Notification EngineTemplate ServiceDelivery TrackerPreference ManagerChannel Adapters

techStack

Node.jsSendGridTwilioFCMPostgreSQL

useCase

SaaS platforms needing sophisticated user communication and engagement features.

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Document & File Management

Intermediate

Secure file storage with versioning, sharing, and collaboration features for SaaS applications.

keyFeatures

  • Secure file upload/download
  • Version control
  • Share permissions
  • Collaboration features
  • File processing pipeline
  • Storage optimization

coreComponents

File Upload ServiceVersion ManagerPermission EngineProcessing PipelineCDN Integration

techStack

Node.jsAWS S3CloudFrontPostgreSQLSharp

useCase

SaaS products requiring document management, file sharing, or collaborative editing features.

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