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        Job description:
        **Project Overview**  
We already have mature Routeblock tables with 20k+ cached flight and hotel routes.

We need a professional, production-ready, independent Laravel 13 microservice called **FlightAPI** that:  
- Completely replaces Amadeus for both Flight and Hotel dummy itinerary generation  
- Produces realistic dummy PDFs that exactly match our current samples (PDFs will be attached)  
- Runs on full autopilot with scheduled refresh  
- Exposes a clean public B2B REST API  
- Supports direct sales + distribution on RapidAPI, Rakuten API, and other marketplaces

**Core Objective**  
Build a reliable 3-layer hybrid engine for Flight + Hotel that delivers 95%+ realism dummy documents, never fails, and becomes our scalable SaaS product with recurring revenue.

**MANDATORY Architecture – 3-Layer Hybrid (Flight & Hotel)**

**Layer 1 – Routeblock Cache (Primary)**  
• Redis + MySQL lookup  
• Sub-50 ms response for cached items (target 95–99% of traffic)

**Layer 2 – Grok AI Generation (Core Engine)**  
• On cache miss: Dispatch background job using Grok-4-Fast  
• Generate full structured JSON using strict prompts (we will provide exact prompts matching our PDF samples)

**Layer 3 – Type-Specific Validation**  
• Flight: AeroDataBox (schedule, flight numbers, aircraft) + rule-based sanity checks  
• Hotel: Google Maps/Places API (Place Details) + rule-based sanity checks (real hotel names, addresses, amenities, cancellation policies, etc.)

**Reliability Guarantee**  
If any step fails:  
1. Retry AI generation once  
2. Fallback to nearest existing Routeblock entry  
3. Fallback to simplified direct template  
API must always return valid PDF-ready JSON.

**Auto-Refresh System**  
• Nightly (02:00): Refresh top 10,000 hot routes/hotels (new dates, prices, variations)  
• Weekly: OpenFlights update (flights) + Google Places refresh (hotels) + new route/hotel discovery  
• Track freshness_score (0–100) and last_refreshed

**Public B2B API Features**  
• Combined endpoint with type: flight or type: hotel  
• Endpoints:  
  • POST /api/v1/itineraries/search  
  • GET /api/v1/itineraries/{pnr_or_reservation_number}  
  • POST /api/v1/itineraries/refresh  
• Tiered rate limiting + detailed usage tracking  
• OpenAPI/Swagger documentation (for RapidAPI & Rakuten integration)  
• Webhook support for marketplace callbacks

**Customer Dashboard & Social Login**  
• Built-in admin/customer portal (using Laravel)  
• Social login: Google, Apple, Facebook, X (Twitter)  
• API key management, usage analytics, billing history, reissue button

**Recurring Payment Integration (Stripe – Full SaaS Billing)**  
• Plans:  
  • Starter: $79/month (Flight or Hotel only)  
  • Growth: $179/month (Both + higher limits)  
  • Enterprise: $499/month (unlimited calls + white-label)  
• Full Stripe integration: subscriptions, usage-based overage, webhooks, upgrade/downgrade, cancellation

**Marketplace Distribution Support (RapidAPI, Rakuten API, etc.)**  
• Standardized OpenAPI 3.1 spec  
• Marketplace-friendly API key generation and usage reporting  
• Webhook endpoints for 3rd-party platform callbacks  
• Rate limiting configurable per integration  
• Usage analytics endpoint for partner dashboards

**Tech Stack (Strict Requirement)**  
• Laravel 13 (fresh project)  
• MySQL or PostgreSQL  
• Redis + Laravel Horizon (queues & caching)  
• Laravel Scheduler (cron)  
• Laravel Sanctum + Socialite (for Google/Apple/Facebook/X login)  
• Grok-4-Fast (official PHP SDK)  
• AeroDataBox Flight API (flights)  
• Google Maps/Places API (hotels)  
• Stripe (full subscription + usage billing)  
• OpenFlights CSV import + Google Places seeding

**Performance Targets**  
• Cached request: < 100 ms  
• New generation: background job with polling/WebSocket feedback (“Generating…”)

**Deliverables & Milestones (Fixed Price – 5–7 weeks)**

**Milestone 1 (Week 1 – 10%)**  
• Laravel 13 setup + DB schema (flight + hotel) + OpenFlights & hotel seeding + social login

**Milestone 2 (Week 2 – 20%)**  
• Routeblock cache + Grok AI job (flight & hotel) + structured JSON

**Milestone 3 (Week 3 – 20%)**  
• Validation layers (AeroDataBox + Google Places) + rule-based sanity + fallback logic

**Milestone 4 (Week 4 – 15%)**  
• Public B2B API + rate limiting + OpenAPI spec + marketplace webhook support

**Milestone 5 (Week 5 – 15%)**  
• Stripe recurring billing + customer dashboard with social login + usage analytics

**Milestone 6 (Final – 20%)**  
• Data migration from existing tables  
• Integration of the new API into our two existing live production websites for real-world testing and use  
• Full testing, documentation & deployment

**Required Skills**  
• Strong Laravel 13 (Horizon, Sanctum, Socialite, Scheduler)  
• Proven LLM integration (Grok/OpenAI) with strict structured JSON  
• Experience building SaaS APIs with Stripe recurring + usage billing  
• Experience with marketplace integrations (RapidAPI, Rakuten, etc.) is a big plus  
• Clean, production-grade, well-documented code

**How to Apply**  
Please reply with:  
1. Your fixed-price bid for the full project  
2. Links to 1–2 relevant Laravel projects (API + billing + social login)  
3. Answers to these questions:  
   • Have you integrated Grok or OpenAI with strict JSON output in Laravel?  
   • Experience with Laravel Horizon + Redis queues?  
   • Have you built APIs for RapidAPI or similar marketplaces?  
   • Can you start immediately and deliver Milestone 1 within 7 days?

PDF samples (flight + hotel) will be attached for exact JSON matching.

We are looking for a reliable long-term partner to build the backbone of our dummy-ticket infrastructure and B2B API business.
        
        Related skills:
        MySQL, PostgreSQL, Laravel, Redis, Stripe

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