Ramon Adedotun

1def __call__(self, request):2    # 1. Extract IP3    x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')4    ip = x_forwarded_for.split(',')[0] if x_forwarded_for \5        else request.META.get('REMOTE_ADDR')6 7    # 2. Block check8    if BlockedIP.objects.filter(ip_address=ip).exists():9        return HttpResponseForbidden("Your IP has been blocked.")10 11    # 3. Geolocation, cached for 24 hours12    cache_key = f"geo_{ip}"13    geo_data = cache.get(cache_key)14    if not geo_data:15        response = requests.get(f"http://ip-api.com/json/{ip}", timeout=5)16        ...17        cache.set(cache_key, geo_data, 86400)18 19    # 4. Log the request20    RequestLog.objects.create(ip_address=ip, path=request.path, ...)21    return self.get_response(request)

1def __call__(self, request):2    # 1. Extract IP3    x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')4    ip = x_forwarded_for.split(',')[0] if x_forwarded_for \5        else request.META.get('REMOTE_ADDR')6 7    # 2. Block check8    if BlockedIP.objects.filter(ip_address=ip).exists():9        return HttpResponseForbidden("Your IP has been blocked.")10 11    # 3. Geolocation, cached for 24 hours12    cache_key = f"geo_{ip}"13    geo_data = cache.get(cache_key)14    if not geo_data:15        response = requests.get(f"http://ip-api.com/json/{ip}", timeout=5)16        ...17        cache.set(cache_key, geo_data, 86400)18 19    # 4. Log the request20    RequestLog.objects.create(ip_address=ip, path=request.path, ...)21    return self.get_response(request)

1-- Range partitioning by year2CREATE TABLE bookings_partitioned (3    id SERIAL PRIMARY KEY,4    user_id INT NOT NULL,5    property_id INT NOT NULL,6    start_date DATE NOT NULL,7    end_date DATE NOT NULL,8    created_at TIMESTAMP DEFAULT NOW()9) PARTITION BY RANGE (start_date);10 11CREATE TABLE bookings_2024 PARTITION OF bookings_partitioned12FOR VALUES FROM ('2024-01-01') TO ('2025-01-01');13 14CREATE TABLE bookings_2025 PARTITION OF bookings_partitioned15FOR VALUES FROM ('2025-01-01') TO ('2026-01-01');16 17-- Faster lookups inside each partition18CREATE INDEX idx_bookings_2025_user_id ON bookings_2025(user_id);

1-- Range partitioning by year2CREATE TABLE bookings_partitioned (3    id SERIAL PRIMARY KEY,4    user_id INT NOT NULL,5    property_id INT NOT NULL,6    start_date DATE NOT NULL,7    end_date DATE NOT NULL,8    created_at TIMESTAMP DEFAULT NOW()9) PARTITION BY RANGE (start_date);10 11CREATE TABLE bookings_2024 PARTITION OF bookings_partitioned12FOR VALUES FROM ('2024-01-01') TO ('2025-01-01');13 14CREATE TABLE bookings_2025 PARTITION OF bookings_partitioned15FOR VALUES FROM ('2025-01-01') TO ('2026-01-01');16 17-- Faster lookups inside each partition18CREATE INDEX idx_bookings_2025_user_id ON bookings_2025(user_id);

1class CreateOrder(graphene.Mutation):2    order = graphene.Field(OrderType)3 4    class Arguments:5        customer_id = graphene.ID(required=True)6        product_ids = graphene.List(graphene.ID, required=True)7 8    def mutate(self, info, customer_id, product_ids):9        if not product_ids:10            raise ValidationError("At least one product is required")11 12        customer = Customer.objects.get(id=customer_id)13        products = Product.objects.filter(id__in=product_ids)14        if products.count() != len(product_ids):15            raise ValidationError("Invalid product ID")16 17        total = sum(product.price for product in products)18        order = Order.objects.create(customer=customer, total_amount=total)19        order.products.set(products)20        return CreateOrder(order=order)

1class CreateOrder(graphene.Mutation):2    order = graphene.Field(OrderType)3 4    class Arguments:5        customer_id = graphene.ID(required=True)6        product_ids = graphene.List(graphene.ID, required=True)7 8    def mutate(self, info, customer_id, product_ids):9        if not product_ids:10            raise ValidationError("At least one product is required")11 12        customer = Customer.objects.get(id=customer_id)13        products = Product.objects.filter(id__in=product_ids)14        if products.count() != len(product_ids):15            raise ValidationError("Invalid product ID")16 17        total = sum(product.price for product in products)18        order = Order.objects.create(customer=customer, total_amount=total)19        order.products.set(products)20        return CreateOrder(order=order)

1export const CoffeeCard = ({ id, image, title, price, rating, onPress }) => {2  return (3    <TouchableOpacity4      activeOpacity={0.9}5      onPress={onPress}6      className="bg-white p-3 rounded-[24px] w-[47%] mb-4"7    >8      <View className="relative">9        <Animated.Image10          sharedTransitionTag={`image-${id}`}11          source={image}12          className="w-full h-32 rounded-2xl"13        />14        <Animated.View entering={FadeIn.delay(300)}>15          <Star size={10} color="#FBBE21" fill="#FBBE21" />16          <Text>{rating}</Text>17        </Animated.View>18      </View>19      ...

1export const CoffeeCard = ({ id, image, title, price, rating, onPress }) => {2  return (3    <TouchableOpacity4      activeOpacity={0.9}5      onPress={onPress}6      className="bg-white p-3 rounded-[24px] w-[47%] mb-4"7    >8      <View className="relative">9        <Animated.Image10          sharedTransitionTag={`image-${id}`}11          source={image}12          className="w-full h-32 rounded-2xl"13        />14        <Animated.View entering={FadeIn.delay(300)}>15          <Star size={10} color="#FBBE21" fill="#FBBE21" />16          <Text>{rating}</Text>17        </Animated.View>18      </View>19      ...

1headers = {'Authorization': f'Bearer {settings.CHAPA_SECRET_KEY}'}2 3response = requests.get(4    f'https://api.chapa.co/v1/transaction/verify/{tx_ref}',5    headers=headers6)7data = response.json()8 9if data.get('status') == 'success':10    payment.status = 'COMPLETED'11    payment.save()12 13    # Confirmation email happens off the request path14    send_payment_confirmation.delay(payment.email)15    return Response({'message': 'Payment verified successfully'})16 17payment.status = 'FAILED'18payment.save()

1headers = {'Authorization': f'Bearer {settings.CHAPA_SECRET_KEY}'}2 3response = requests.get(4    f'https://api.chapa.co/v1/transaction/verify/{tx_ref}',5    headers=headers6)7data = response.json()8 9if data.get('status') == 'success':10    payment.status = 'COMPLETED'11    payment.save()12 13    # Confirmation email happens off the request path14    send_payment_confirmation.delay(payment.email)15    return Response({'message': 'Payment verified successfully'})16 17payment.status = 'FAILED'18payment.save()

1def get_all_properties():2    queryset = cache.get('all_properties')3    if queryset is None:4        queryset = Property.objects.all()5        cache.set('all_properties', queryset, 3600)6    return queryset7 8def get_redis_cache_metrics():9    con = get_redis_connection("default")10    info = con.info()11    hits = info.get('keyspace_hits', 0)12    misses = info.get('keyspace_misses', 0)13 14    total_requests = hits + misses15    hit_ratio = hits / total_requests if total_requests > 0 else 016 17    logger.info(f"Redis Metrics - Hits: {hits}, "18                f"Misses: {misses}, Ratio: {hit_ratio:.2f}")

1def get_all_properties():2    queryset = cache.get('all_properties')3    if queryset is None:4        queryset = Property.objects.all()5        cache.set('all_properties', queryset, 3600)6    return queryset7 8def get_redis_cache_metrics():9    con = get_redis_connection("default")10    info = con.info()11    hits = info.get('keyspace_hits', 0)12    misses = info.get('keyspace_misses', 0)13 14    total_requests = hits + misses15    hit_ratio = hits / total_requests if total_requests > 0 else 016 17    logger.info(f"Redis Metrics - Hits: {hits}, "18                f"Misses: {misses}, Ratio: {hit_ratio:.2f}")