import { NextApiRequest, NextApiResponse } from 'next';
import { VercelRequest, VercelResponse } from '@vercel/node';
interface VercelConfig {
regions: string[];
functions: Record<string, FunctionConfig>;
rewrites: RewriteRule[];
redirects: RedirectRule[];
headers: HeaderRule[];
}
export class EnterpriseVercelManager {
private config: VercelConfig;
private analytics: VercelAnalytics;
private monitoring: VercelMonitoring;
constructor(config: Partial<VercelConfig> = {}) {
this.config = {
regions: [
'iad1',
'hnd1',
'pdx1',
'sfo1',
'fra1',
'arn1',
'lhr1',
'cdg1',
],
functions: {},
rewrites: [],
redirects: [],
headers: [],
...config,
};
this.analytics = new VercelAnalytics();
this.monitoring = new VercelMonitoring();
}
configureEdgeFunctions(): VercelConfig['functions'] {
return {
'api/users/[id]': {
runtime: 'edge',
regions: this.config.regions,
maxDuration: 30,
memory: 512,
},
'api/analytics/collect': {
runtime: 'edge',
regions: ['iad1', 'hnd1', 'fra1'],
maxDuration: 10,
memory: 256,
},
'api/generate-pdf': {
runtime: 'nodejs18.x',
maxDuration: 60,
memory: 1024,
},
};
}
configureCaching(): CacheConfig {
return {
rules: [
{
source: '/api/(.*)',
headers: {
'Cache-Control': 's-maxage=60, stale-while-revalidate=300',
'Vercel-CDN-Cache-Control': 'max-age=3600',
},
},
{
source: '/_next/static/(.*)',
headers: {
'Cache-Control': 'public, max-age=31536000, immutable',
},
},
{
source: '/images/(.*)',
headers: {
'Cache-Control': 'public, max-age=86400',
},
},
],
revalidate: {
'/api/products': 3600,
'/api/users': 60,
'/blog/(.*)': 86400,
},
};
}
async handleEdgeRequest(request: VercelRequest): Promise<VercelResponse> {
try {
const url = new URL(request.url);
const securityHeaders = {
'X-Content-Type-Options': 'nosniff',
'X-Frame-Options': 'DENY',
'X-XSS-Protection': '1; mode=block',
'Referrer-Policy': 'strict-origin-when-cross-origin',
'Permissions-Policy': 'camera=(), microphone=(), geolocation=()',
};
const corsHeaders = this.configureCORS(request);
const rateLimitResult = await this.checkRateLimit(request);
if (!rateLimitResult.allowed) {
return new Response('Rate limit exceeded', {
status: 429,
headers: {
...securityHeaders,
'Retry-After': rateLimitResult.retryAfter.toString(),
},
});
}
const region = this.getOptimalRegion(request);
if (url.pathname.startsWith('/api/')) {
return await this.handleAPIRequest(request, region);
}
if (this.isStaticFile(url.pathname)) {
return await this.serveStaticFile(url.pathname);
}
return await this.serveSPA(request);
} catch (error) {
console.error('Edge request error:', error);
return new Response('Internal Server Error', { status: 500 });
}
}
private configureCORS(request: VercelRequest): Record<string, string> {
const origin = request.headers.get('origin');
const allowedOrigins = [
'https://yourdomain.com',
'https://www.yourdomain.com',
'https://app.yourdomain.com',
];
if (allowedOrigins.includes(origin || '')) {
return {
'Access-Control-Allow-Origin': origin!,
'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
'Access-Control-Allow-Headers': 'Content-Type, Authorization',
'Access-Control-Allow-Credentials': 'true',
};
}
return {};
}
private async checkRateLimit(request: VercelRequest): Promise<RateLimitResult> {
const clientIP = request.headers.get('x-forwarded-for') ||
request.headers.get('x-real-ip') ||
'unknown';
const key = `rate_limit:${clientIP}`;
const window = 60000;
const limit = 100;
const current = await this.getRateLimitCount(key, window);
if (current >= limit) {
return {
allowed: false,
retryAfter: Math.ceil(window / 1000),
};
}
await this.incrementRateLimitCount(key);
return { allowed: true };
}
private getOptimalRegion(request: VercelRequest): string {
const country = request.headers.get('x-vercel-ip-country');
const regionMap: Record<string, string> = {
'US': 'iad1',
'CA': 'hnd1',
'GB': 'lhr1',
'DE': 'fra1',
'FR': 'cdg1',
'NL': 'arn1',
};
return regionMap[country || 'US'] || 'iad1';
}
private async handleAPIRequest(
request: VercelRequest,
region: string
): Promise<VercelResponse> {
const url = new URL(request.url);
const pathParts = url.pathname.split('/').filter(Boolean);
if (pathParts[0] === 'api' && pathParts[1] === 'users') {
return await this.handleUsersAPI(request, pathParts.slice(2), region);
}
if (pathParts[0] === 'api' && pathParts[1] === 'analytics') {
return await this.handleAnalyticsAPI(request, pathParts.slice(2), region);
}
return new Response('API endpoint not found', { status: 404 });
}
private async handleUsersAPI(
request: VercelRequest,
pathParts: string[],
region: string
): Promise<VercelResponse> {
const userId = pathParts[0];
if (!userId) {
return new Response('User ID required', { status: 400 });
}
try {
const userData = await this.fetchUserData(userId);
if (!userData) {
return new Response('User not found', { status: 404 });
}
return new Response(JSON.stringify(userData), {
status: 200,
headers: {
'Content-Type': 'application/json',
'Cache-Control': 's-maxage=60, stale-while-revalidate=300',
'X-Region': region,
},
});
} catch (error) {
console.error('Users API error:', error);
return new Response('Internal Server Error', { status: 500 });
}
}
private async fetchUserData(userId: string): Promise<UserData | null> {
return null;
}
}
const nextConfig = {
experimental: {
optimizeCss: true,
optimizePackageImports: ['lucide-react', '@radix-ui/react-icons'],
turbo: {
rules: {
'*.svg': {
loaders: ['@svgr/webpack'],
as: '*.js',
},
},
},
},
images: {
domains: ['yourdomain.com', 'cdn.yourdomain.com'],
formats: ['image/webp', 'image/avif'],
deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048, 3840],
imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
},
compiler: {
removeConsole: process.env.NODE_ENV === 'production',
},
webpack: (config, { dev, isServer }) => {
if (!dev && !isServer) {
Object.assign(config.resolve.alias, {
'react': 'preact/compat',
'react-dom': 'preact/compat',
});
}
return config;
},
async redirects() {
return [
{
source: '/home',
destination: '/',
permanent: true,
},
{
source: '/docs/:path*',
destination: 'https://docs.yourdomain.com/:path*',
permanent: true,
},
];
},
async rewrites() {
return [
{
source: '/api/analytics/:path*',
destination: '/api/analytics/:path*',
},
];
},
async headers() {
return [
{
source: '/api/:path*',
headers: [
{
key: 'Cache-Control',
value: 's-maxage=60, stale-while-revalidate=300',
},
{
key: 'X-Frame-Options',
value: 'DENY',
},
{
key: 'X-Content-Type-Options',
value: 'nosniff',
},
],
},
{
source: '/(.*)',
headers: [
{
key: 'X-DNS-Prefetch-Control',
value: 'on',
},
],
},
];
},
};
export class VercelAnalytics {
private collectEndpoint: string = '/api/analytics/collect';
async trackEvent(event: AnalyticsEvent): Promise<void> {
try {
await fetch(this.collectEndpoint, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
...event,
timestamp: new Date().toISOString(),
userAgent: navigator.userAgent,
url: window.location.href,
}),
});
} catch (error) {
console.error('Analytics tracking error:', error);
}
}
async trackPageView(page: string, title: string): Promise<void> {
await this.trackEvent({
name: 'page_view',
data: {
page,
title,
referrer: document.referrer,
},
});
}
async trackUserAction(action: string, data: Record<string, any>): Promise<void> {
await this.trackEvent({
name: 'user_action',
data: {
action,
...data,
},
});
}
async trackPerformance(metric: string, value: number): Promise<void> {
await this.trackEvent({
name: 'performance',
data: {
metric,
value,
connectionType: (navigator as any).connection?.effectiveType,
},
});
}
}
export class VercelMonitoring {
private vitals: WebVitals = {};
recordVital(name: string, value: number): void {
this.vitals[name] = value;
const thresholds: Record<string, number> = {
LCP: 2500,
FID: 100,
CLS: 0.1,
FCP: 1800,
TTFB: 800,
};
if (value > thresholds[name]) {
this.sendPerformanceAlert(name, value, thresholds[name]);
}
}
private async sendPerformanceAlert(
metric: string,
value: number,
threshold: number
): Promise<void> {
try {
await fetch('/api/monitoring/performance', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
metric,
value,
threshold,
url: window.location.href,
timestamp: new Date().toISOString(),
userAgent: navigator.userAgent,
}),
});
} catch (error) {
console.error('Performance monitoring error:', error);
}
}
getVitals(): WebVitals {
return { ...this.vitals };
}
}
interface VercelConfig {
regions: string[];
functions: Record<string, FunctionConfig>;
rewrites: RewriteRule[];
redirects: RedirectRule[];
headers: HeaderRule[];
}
interface FunctionConfig {
runtime: 'edge' | 'nodejs18.x';
regions?: string[];
maxDuration: number;
memory: number;
}
interface CacheConfig {
rules: CacheRule[];
revalidate: Record<string, number>;
}
interface CacheRule {
source: string;
headers: Record<string, string>;
}
interface RewriteRule {
source: string;
destination: string;
}
interface RedirectRule {
source: string;
destination: string;
permanent: boolean;
}
interface HeaderRule {
source: string;
headers: Array<{
key: string;
value: string;
}>;
}
interface RateLimitResult {
allowed: boolean;
retryAfter?: number;
}
interface UserData {
id: string;
email: string;
name: string;
preferences: Record<string, any>;
lastActive: Date;
}
interface AnalyticsEvent {
name: string;
data: Record<string, any>;
}
interface WebVitals {
LCP?: number;
FID?: number;
CLS?: number;
FCP?: number;
TTFB?: number;
}
from firebase_functions import https_fn
from firebase_admin import firestore
import json
import time
import hashlib
from datetime import datetime, timedelta
@https_fn.on_request()
def cached_api_request(request: https_fn.Request) -> https_fn.Response:
"""Handle API requests with intelligent caching."""
try:
path = request.path
method = request.method
cache_key = generate_cache_key(path, method, request.args.to_dict())
cached_response = get_cached_response(cache_key)
if cached_response:
return cached_response
if path.startswith('/api/users/'):
response = process_users_request(request)
elif path.startswith('/api/analytics/'):
response = process_analytics_request(request)
else:
response = https_fn.Response(
json.dumps({"error": "Endpoint not found"}),
status=404,
mimetype="application/json"
)
if response.status_code == 200:
cache_response(cache_key, response)
return response
except Exception as e:
return https_fn.Response(
json.dumps({"error": str(e)}),
status=500,
mimetype="application/json"
)
def generate_cache_key(path: str, method: str, params: dict) -> str:
"""Generate cache key for request."""
key_data = f"{method}:{path}:{json.dumps(sorted(params.items()))}"
return hashlib.md5(key_data.encode()).hexdigest()
def get_cached_response(cache_key: str):
"""Get cached response (simplified version)."""
return None
def cache_response(cache_key: str, response: https_fn.Response):
"""Cache response for future use."""
pass
@https_fn.on_request()
def ab_testing(request: https_fn.Request) -> https_fn.Response:
"""Handle A/B testing for different feature variants."""
try:
user_id = request.args.get('user_id')
if not user_id:
return https_fn.Response(
json.dumps({"error": "User ID required"}),
status=400,
mimetype="application/json"
)
variant = determine_ab_variant(user_id, request.path)
db = firestore.client()
experiment_doc = db.collection('ab_tests').document(request.path).get()
if not experiment_doc.exists:
return https_fn.Response(
json.dumps({"error": "Experiment not found"}),
status=404,
mimetype="application/json"
)
experiment = experiment_doc.to_dict()
variant_config = experiment['variants'].get(variant)
if not variant_config:
variant_config = experiment['variants']['control']
db.collection('ab_test_participants').document(user_id).set({
'experiment': request.path,
'variant': variant,
'timestamp': datetime.utcnow(),
'user_agent': request.headers.get('User-Agent'),
})
if request.path == '/api/homepage':
return handle_homepage_variant(variant_config, variant)
elif request.path == '/api/pricing':
return handle_pricing_variant(variant_config, variant)
else:
return https_fn.Response(
json.dumps({"variant": variant, "config": variant_config}),
status=200,
mimetype="application/json"
)
except Exception as e:
return https_fn.Response(
json.dumps({"error": str(e)}),
status=500,
mimetype="application/json"
)
def determine_ab_variant(user_id: str, experiment: str) -> str:
"""Determine A/B test variant based on user ID."""
hash_value = int(hashlib.md5(f"{user_id}:{experiment}".encode()).hexdigest(), 16)
if hash_value % 100 < 50:
return 'control'
else:
return 'variant_a'
def handle_homepage_variant(config: dict, variant: str) -> https_fn.Response:
"""Handle homepage A/B test variant."""
response_data = {
'variant': variant,
'title': config.get('title', 'Welcome'),
'hero_text': config.get('hero_text', 'Discover our amazing features'),
'cta_text': config.get('cta_text', 'Get Started'),
'features': config.get('features', [])
}
return https_fn.Response(
json.dumps(response_data),
status=200,
headers={
'X-AB-Variant': variant,
'Cache-Control': 'no-cache',
},
mimetype="application/json"
)
@https_fn.on_request()
def geo_personalization(request: https_fn.Request) -> https_fn.Response:
"""Personalize content based on user geolocation."""
try:
country = request.headers.get('x-vercel-ip-country')
region = request.headers.get('x-vercel-ip-region')
city = request.headers.get('x-vercel-ip-city')
content = get_geo_personalized_content(country, region, city)
response_data = {
'location': {
'country': country,
'region': region,
'city': city,
},
'personalized_content': content,
'timestamp': datetime.utcnow().isoformat(),
}
return https_fn.Response(
json.dumps(response_data),
status=200,
mimetype="application/json"
)
except Exception as e:
return https_fn.Response(
json.dumps({"error": str(e)}),
status=500,
mimetype="application/json"
)
def get_geo_personalized_content(country: str, region: str, city: str) -> dict:
"""Get personalized content based on geolocation."""
if country == 'US':
return {
'currency': 'USD',
'language': 'en',
'promotions': ['free_shipping', 'local_deals'],
'shipping_options': ['standard', 'express', 'overnight'],
}
elif country == 'GB':
return {
'currency': 'GBP',
'language': 'en',
'promotions': ['free_shipping_uk', 'brexit_deals'],
'shipping_options': ['standard_uk', 'express_uk'],
}
elif country == 'DE':
return {
'currency': 'EUR',
'language': 'de',
'promotions': ['free_shipping_de', 'eu_deals'],
'shipping_options': ['standard_eu', 'express_eu'],
}
else:
return {
'currency': 'USD',
'language': 'en',
'promotions': ['international_shipping'],
'shipping_options': ['standard_international'],
}
