// --- API KEYS AND CONFIG --- const TRAVELPAYOUTS_MARKER = '634425'; const AMADEUS_API_KEY = 'wnxdD8f2YGFwGBNqA7hXafKbIL4gsojf'; // 🔒 IMPORTANT: The Amadeus API Secret should NOT be stored here in production. // See the security note at the end of this guide. const AMADEUS_API_SECRET = 'NafcUGE85nx0RPVO'; let amadeusAccessToken = null; // --- 1. GOOGLE PLACES AUTOCOMPLETE --- function initAutocomplete() { const autocompleteOptions = { types: ['(cities)', 'airport'] }; // Hero Search new google.maps.places.Autocomplete(document.getElementById('from-input'), autocompleteOptions); new google.maps.places.Autocomplete(document.getElementById('to-input'), autocompleteOptions); // Tracker Search new google.maps.places.Autocomplete(document.getElementById('tracker-from-input'), autocompleteOptions); new google.maps.places.Autocomplete(document.getElementById('tracker-to-input'), autocompleteOptions); // Predictor Search new google.maps.places.Autocomplete(document.getElementById('predictor-from-input'), autocompleteOptions); new google.maps.places.Autocomplete(document.getElementById('predictor-to-input'), autocompleteOptions); // Other Searches new google.maps.places.Autocomplete(document.getElementById('hotel-location-input'), { types: ['(cities)'] }); new google.maps.places.Autocomplete(document.getElementById('hostel-location-input'), { types: ['(cities)'] }); new google.maps.places.Autocomplete(document.getElementById('car-pickup-location-input'), { types: ['(cities)', 'airport'] }); } // --- 2. AMADEUS API FLIGHT LOGIC --- async function getAmadeusToken() { // Note: This is a client-side token request for demonstration. // In production, this should be handled server-side to protect your API Secret. if (amadeusAccessToken) return amadeusAccessToken; try { const response = await fetch('https://test.api.amadeus.com/v1/security/oauth2/token', { method: 'POST', headers: { 'Content-Type': 'application/x-www-form-urlencoded' }, body: `grant_type=client_credentials&client_id=${AMADEUS_API_KEY}&client_secret=${AMADEUS_API_SECRET}` }); const data = await response.json(); amadeusAccessToken = data.access_token; setTimeout(() => { amadeusAccessToken = null; }, (data.expires_in - 300) * 1000); return amadeusAccessToken; } catch (error) { console.error("Amadeus Auth Error:", error); return null; } } async function getIataCode(place) { // This is a simplified function. A real implementation would use Google's Geocoding API // or a dedicated IATA code lookup service to convert the place name to a code. // For now, we will return a placeholder or extract from input if possible. console.warn("getIataCode is a placeholder. You need to implement a real IATA lookup."); return "LHR"; // Placeholder } // --- 3. DYNAMIC SEARCH FUNCTIONS --- async function searchDeals() { // This function will now power the main hero search showAudienceTab('all-travel', document.getElementById('all-travel-btn')); const fromInput = document.getElementById('from-input').value; const toInput = document.getElementById('to-input').value; const dateInput = document.getElementById('date-input').value; const dealsGrid = document.getElementById('deals-grid'); if (!fromInput || !toInput || !dateInput) { alert("Please provide an origin, destination, and departure date."); return; } dealsGrid.innerHTML = '

✈️ Searching for flights...

'; // In a real application, you would convert user-friendly names to IATA codes here. const originIata = await getIataCode(fromInput); const destinationIata = await getIataCode(toInput); const token = await getAmadeusToken(); if (!token) { dealsGrid.innerHTML = '

Could not connect to flight service. Please try again later.

'; return; } try { const url = `https://test.api.amadeus.com/v2/shopping/flight-offers?originLocationCode=${originIata}&destinationLocationCode=${destinationIata}&departureDate=${dateInput}&adults=1&nonStop=false&max=6`; const response = await fetch(url, { headers: { 'Authorization': `Bearer ${token}` }}); if (!response.ok) throw new Error(`API Error: ${response.statusText}`); const data = await response.json(); if (data.data.length === 0) { dealsGrid.innerHTML = '

No flights found for this route. Please try another search.

'; return; } // Generate dynamic Travelpayout affiliate links const aviasalesLink = `https://www.travelpayouts.com/click?shmarker=${TRAVELPAYOUTS_MARKER}&promo_id=4047&origin_iata=${originIata}&destination_iata=${destinationIata}&trip_class=0&adults=1&with_request=true`; grid.innerHTML = data.data.map(deal => `

${deal.itineraries[0].segments[0].departure.iataCode} → ${deal.itineraries[0].segments.slice(-1)[0].arrival.iataCode}

${deal.itineraries[0].segments.length - 1} stop(s) via ${deal.validatingAirlineCodes[0]}

$${deal.price.total}

View Deal →

`).join(''); } catch (error) { console.error("Flight Search Error:", error); dealsGrid.innerHTML = '

An error occurred while searching for flights.

'; } } function searchHotels() { const location = document.getElementById('hotel-location-input').value; if (!location) { alert("Please enter a city or hotel name."); return; } const url = `https://search.hotellook.com/?marker=${TRAVELPAYOUTS_MARKER}&destination=${encodeURIComponent(location)}&language=en`; window.open(url, '_blank'); } function searchHostels() { const location = document.getElementById('hostel-location-input').value; if (!location) { alert("Please enter a city."); return; } // Hotellook is also used for hostels const url = `https://search.hotellook.com/?marker=${TRAVELPAYOUTS_MARKER}&destination=${encodeURIComponent(location)}&language=en`; window.open(url, '_blank'); } function searchCars() { const location = document.getElementById('car-pickup-location-input').value; if (!location) { alert("Please enter a pick-up location."); return; } // Using EconomyBookings.com link from Travelpayout const url = `https://www.travelpayouts.com/click?shmarker=${TRAVELPAYOUTS_MARKER}&promo_id=1415&source_type=link&type=click&trs=201555`; window.open(url, '_blank'); // Note: For a better user experience, you'd find a way to pass the 'location' to the partner site. } function setPriceAlert() { const from = document.getElementById('tracker-from-input').value; const to = document.getElementById('tracker-to-input').value; if (!from || !to) { alert("Please enter an origin and destination for the price alert."); return; } alert(`Price alert for ${from} to ${to} has been set! (This is a demo).`); // Here you would integrate with Amadeus's Flight Price Analysis API or a similar service. } function getPricePrediction() { const from = document.getElementById('predictor-from-input').value; const to = document.getElementById('predictor-to-input').value; const date = document.getElementById('predictor-date-input').value; const container = document.getElementById('prediction-result-container'); if (!from || !to || !date) { alert("Please enter all fields for a prediction."); return; } container.innerHTML = `

🔮 Analyzing historical data for ${from} to ${to}...

`; // This is where you would call your historical data API (e.g., Tefaa or Amadeus). // For this demo, we'll simulate a result. setTimeout(() => { const shouldBuy = Math.random() > 0.5; const confidence = Math.floor(Math.random() * (95 - 75 + 1) + 75); if (shouldBuy) { container.innerHTML = `

Good time to Buy!

Our analysis of historical data suggests prices are lower than average. We are ${confidence}% confident in this prediction.

`; } else { container.innerHTML = `

Consider Waiting.

Prices are currently higher than usual for this route. It may be better to track prices. We are ${confidence}% confident in this prediction.

`; } }, 2000); }

Budget Travel

Jake’s Budget Travel Guides & Tools – Endless Travel Plans

Portrait of Jake Martinez

The Budget Optimizer

See More of the World, for Less.

Welcome! I’m dedicated to the art of value travel. My guides are filled with data-driven strategies, travel hacks, and honest gear reviews to help you maximize every dollar and experience.

Jake’s Featured Budget Guides

Start with my most popular hero guides, packed with actionable tips to save you money.

Digital Nomad working on a laptop with a passport and credit cards

Digital Nomad Visa Guide 2025: Costs, Requirements & ROI Analysis

Modern and clean capsule hostel pods

Capsule Hostels vs Traditional Hostels: Complete Cost & Comfort Guide

Backpacker looking at a map in a vibrant, cheap travel destination

30 Cheapest Countries to Travel 2025: Real Daily Budgets ($15-40)

Backpacker looking over a stunning European landscape

Europe Backpacking Costs 2025: Eastern vs Western Route Analysis

View All of Jake’s Guides

Stop Guessing. Start Tracking.

Get my exact budget tracking spreadsheet that’s saved me over $20,000

476

Days Tracked

47

Countries

$20K+

Saved

Includes:

47 tracking formulas that calculate everything automatically
Multi-currency support with real-time conversion
Destination comparison dashboard
Monthly/yearly analysis views

Join 10,847 travelers already saving smarter. Unsubscribe anytime.

Jake’s Advanced Travel Tools

Stop guessing, start planning. Real data from over 60 destinations for budget backpackers.

Travel Value Calculator™ 2.0

Advanced ROI analysis based on your travel style and destination preferences.

Your Travel Profile

Annual Travel Budget ($)

Trips Per Year

Home City (for comparison)

Travel Style Priority

Your Optimization Analysis

Current Cost Per Day $89

Optimized Cost $52

Days of Extra Travel +34 days

Annual Savings Potential

$3,700

ROI: 185%

Your Savings History

Save calculations to see your history

Destination Value Explorer 2.0

Real data from backpackers. Compare, save, and export your travel research.