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TauxDeChange.tn

Building Tunisia's go-to platform for real-time currency exchange rates, serving thousands of users daily with accurate, up-to-date information.

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Problem Statement

Tunisians needed a reliable source for currency exchange rates. Existing options were fragmented—users had to visit multiple bank websites to compare rates, and the information was often outdated or hard to find.

We needed to build a platform that would:

  • Aggregate rates from all major Tunisian banks
  • Update data in real-time throughout the day
  • Provide an intuitive, mobile-friendly interface
  • Achieve top Google rankings for relevant keywords

Project Details

Timeline: 6 weeks

Team: 1 Full-stack developer

Industry: Finance / FinTech


Tech Stack

Next.js 14 TypeScript Python Redis

Infrastructure

Vercel Edge Cloudflare CDN Upstash Redis Serverless

DevOps & CI/CD

GitHub Actions Terraform Vercel CLI

Security

Cloudflare WAF DDoS Shield Bot Management

How We Built It

🌐 Serverless Edge Architecture

Deployed on Vercel's global Edge Network with 100+ PoPs. Serverless functions handle API requests with automatic scaling. Zero cold starts with edge caching.

⚡ Upstash Redis Caching

Serverless Redis for lightning-fast rate lookups. Edge-compatible caching layer reduces API latency to <50ms. Automatic cache invalidation on data updates.

�️ Cloudflare Security Stack

Enterprise WAF with custom rulesets. DDoS protection up to 100Tbps. Bot management blocks scrapers while allowing legitimate traffic. Rate limiting per IP.

� Terraform Infrastructure

Infrastructure as Code with Terraform. DNS, CDN rules, and edge workers version-controlled. One-click disaster recovery and multi-region failover.

🚀 GitHub Actions CI/CD

Automated pipelines: lint → test → build → deploy. Preview deployments for PRs. Lighthouse CI gates enforce performance budgets. Dependabot security scanning.

� Real-time Analytics

Vercel Analytics for Core Web Vitals. Custom Python scripts for rate trend analysis. Automated alerts via Discord webhooks for anomaly detection.

Impact & Metrics

10,000+
Monthly Visitors
#1
Google Ranking
<1s
Page Load Time
99.9%
Uptime

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