Car Rental Booking App — Nearby Providers & Secure Payments

Project Objective

Build a reliable, map-driven car booking app android experience. Customers find the right vehicle quickly, request bookings with complete trip details, pay securely, and get transparent status updates. Providers manage inventory, approve requests, and coordinate handover smoothly.

How It Works

1. Discover: User’s GPS locates nearby providers. Map markers + list cards with distance, ratings, and base price.
2. Browse Cars: Filter by body type, brand, seats, fuel, transmission; view model, colour, price/day, and photos.
3. Request: Select pickup & drop-off locations/dates; add notes (extras, driver preference).
4. Approval: Provider reviews and Approves/Declines. Customer gets instant notification.
5. Payment: On approval, user pays deposit/total via Razorpay (UPI/cards/wallets).
6. Handover & Ride: In-app checklist and Google Maps directions to pickup point. Status transitions to Ongoing, then Completed.

Project Modules

Key Features & Benefits

• Maps-first discovery to find the right provider, fast.
• Transparent pricing with daily rates and inclusions.
• Real-time statuses & notifications through the full journey.
• Secure payments with Razorpay and server-side verification.
• Role-based access with Firebase Auth & Security Rules.

Android Integration Sketch (Java/XML)

// PSEUDO-CODE (illustrative only; no Firebase JSON printed)

// 1) Nearby Providers on Google Maps
void loadProviders(double lat, double lng, double radiusKm){
  // fetch /providers (name, rating, lat, lng, basePrice)
  // compute distance (Haversine) -> filter by radius -> sort by distance/rating
  // emit to Map (markers) + RecyclerView
}

// 2) Browse Cars for a Provider
LiveData> getCars(String providerId, Filter f){
  // query /providers/{id}/cars with filters (brand, bodyType, seats, fuel, transmission)
  // return list to UI
}

// 3) Create Booking Request
void createRequest(BookingRequest req){
  // fields: userId, providerId, carId, pickup/drop latlng, startDate, endDate, notes
  // write to /requests -> status=pending
  // provider receives real-time listener
}

// 4) Provider Approve/Reject
void setRequestStatus(String reqId, String status){
  // allowed: pending|approved|rejected|ongoing|completed|cancelled
  // security rules restrict updates to provider or requester accordingly
}

// 5) Razorpay Checkout
void startPayment(Activity ctx, Order order){
  Checkout co = new Checkout(); // Razorpay SDK
  JSONObject opts = new JSONObject();
  opts.put("name","Tour2Tech Rentals");
  opts.put("currency","INR");
  opts.put("amount", order.amountPaise); // paise
  opts.put("order_id", order.razorpayOrderId); // created via server/Cloud Function
  JSONObject prefill = new JSONObject();
  prefill.put("email", user.email);
  prefill.put("contact", user.phone);
  opts.put("prefill", prefill);
  co.open(ctx, opts);
}

public void onPaymentSuccess(String razorpayPaymentId){
  // verify signature on server
  // set /orders/{id}: status=PAID, tie to request -> status=approved
  // send notification to both parties
}

public void onPaymentError(int code, String reason){
  // show error, keep booking in 'approved-awaiting-payment' or revert to 'pending'
}

// 6) Pickup Navigation
void openPickupDirections(double lat, double lng){
  Uri uri = Uri.parse("google.navigation:q=" + lat + "," + lng);
  ctx.startActivity(new Intent(Intent.ACTION_VIEW, uri));
}

// 7) Status Progression
void markOngoing(String requestId){ /* provider marks after handover */ }
void markCompleted(String requestId){ /* provider marks after return */ }
              

What You Get