Comment créer une application d'optimisation d'itinéraire à arrêts multiples avec l'API TomTom Maps

def ride_request(request): if request.method == 'POST': form = RideForm(request.POST) if form.is_valid(): ride = form.save(commit=False) # Get coordinates for the pickup and drop locations pickup_coords = get_coordinates(ride.pickup_address) pickup_coords_1 = get_coordinates(ride.pickup_address_1) pickup_coords_2 = get_coordinates(ride.pickup_address_2) drop_coords = get_coordinates(ride.drop_address) # Ensure all coordinates are available if all([pickup_coords, pickup_coords_1, pickup_coords_2, drop_coords]): # Set the coordinates ride.pickup_latitude, ride.pickup_longitude = pickup_coords ride.pickup_latitude_1, ride.pickup_longitude_1 = pickup_coords_1 ride.pickup_latitude_2, ride.pickup_longitude_2 = pickup_coords_2 ride.drop_latitude, ride.drop_longitude = drop_coords # Save the ride and redirect to the success page try: ride.save() return redirect('success_page', pickup_lon=ride.pickup_longitude, pickup_lat=ride.pickup_latitude, pickup_lon_1=ride.pickup_longitude_1, pickup_lat_1=ride.pickup_latitude_1, pickup_lon_2=ride.pickup_longitude_2, pickup_lat_2=ride.pickup_lat_2, drop_lon=ride.drop_longitude, drop_lat=ride.drop_latitude) except IntegrityError as e: messages.error(request, f'IntegrityError: {str(e)}') else: messages.error(request, 'Error getting coordinates. Please try again.') else: form = RideForm() return render(request, 'maps/ride_request.html', {'form': form})

def get_coordinates(address): """ Get coordinates (latitude, longitude) for a given address using TomTom Geocoding API. """ api_key = 'YOUR_TOMTOM_API_KEY' base_url = 'https://api.tomtom.com/search/2/geocode/{address}.json' # Prepare the URL with the address and API key url = base_url.format(address=address) params = {'key': api_key} # Make the request to TomTom Geocoding API response = requests.get(url, params=params) data = response.json() # Check if the request was successful if response.status_code == 200 and data.get('results'): # Extract coordinates from the response result = data['results'][0] if 'position' in result: coordinates = result['position'] return coordinates.get('lat'), coordinates.get('lon') else: print( f"Error getting coordinates for {address}: 'position' key not found in the response.") return None else: # Handle errors or return a default value print( f"Error getting coordinates for {address}: {data.get('message')}") return None

def get_optimized_route(*pickup_coords, drop_coords): api_key = 'YOUR_TOMTOM_API_KEY' # Prepare the payload for the API payload = { 'waypoints': [{'point': {'latitude': lat, 'longitude': lon}} for lon, lat in pickup_coords], 'options': {'travelMode': 'car'}, } # Add the drop location to the waypoints payload['waypoints'].append({'point': {'latitude': drop_coords[1], 'longitude': drop_coords[0]}}) # API request response = requests.post(f'https://api.tomtom.com/routing/waypointoptimization/1', params={'key': api_key}, json=payload) if response.status_code == 200: data = response.json() if 'optimizedOrder' in data: # Extract the optimized route return [get_route_geometry(pickup_coords[i], pickup_coords[j]) for i, j in zip(data['optimizedOrder'], data['optimizedOrder'][1:])] return None

{% load static %}