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â†Šī¸ Boomerang: Surfacing What Matters

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Authentication Edge Case

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API Rate Limiting

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Database Connection Pool

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đŸĒ† Nested Documentation

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🔐 Implementing Auth

Use OAuth 2.0 with JWT tokens. Store refresh tokens securely. Implement rate limiting.

Layer 1: Implementation

Step 1: Configure OAuth provider with client credentials.
Step 2: Set up token endpoints: /auth/login, /auth/refresh.
Step 3: Implement middleware for token validation.
Step 4: Add refresh token rotation for security.

đŸ—„ī¸ Database Optimization

Index frequently queried columns. Use connection pooling. Cache common queries.

Layer 1: Implementation

Indexing: Create B-tree indexes on foreign keys.
Pooling: Configure PgBouncer for PostgreSQL.
Caching: Use Redis with 15-minute TTL.
Monitoring: Track query performance with EXPLAIN ANALYZE.

⚡ API Rate Limiting

Use sliding window algorithm. Store counters in Redis. Set appropriate limits per tier.

Layer 1: Implementation

Algorithm: Sliding window with 1-minute precision.
Storage: Redis sorted sets for O(log n) lookup.
Limits: Free: 100/min, Pro: 1000/min, Enterprise: custom.
Headers: Return X-RateLimit-Remaining on every request.

🔔 Event System

Pub/sub with Redis. Event sourcing for audit logs. Retry logic with exponential backoff.

Layer 1: Implementation

Broker: Redis Pub/Sub for real-time events.
Persistence: Event store in PostgreSQL for replay.
Retries: Exponential backoff: 1s, 2s, 4s, 8s, 16s max.
Dead Letter: Failed events go to DLQ for inspection.

📊 Monitoring Setup

Metrics with Prometheus. Alerts with Grafana. Logs with ELK stack. Distributed tracing.

Layer 1: Implementation

Metrics: Expose /metrics endpoint for Prometheus scraping.
Visualize: Grafana dashboards with pre-built panels.
Logs: Centralize in Elasticsearch, search with Kibana.
Tracing: OpenTelemetry for distributed request tracking.

🚀 Deployment Pipeline

CI with GitHub Actions. CD with ArgoCD. Blue-green deployments. Automated rollback.

Layer 1: Implementation

CI: Run tests, lint, build image on push to main.
CD: ArgoCD syncs Git repo to Kubernetes cluster.
Strategy: Blue-green deployment with instant rollback.
Health: Readiness and liveness probes on all services.