ποΈ MyZubster Architecture Deep Dive Complete guide to the system design β from components to data flow and scalability π What is This Guide? This guide explains the complete architecture of the MyZubster ecosystem: β System design β How all components fit together β Data flow β How data moves through the system β Scalability β How to scale each component β Security architecture β How security is implemented β Performance optimization β How to optimize each layer β High availability β How to ensure uptime Enter fullscreen mode Exit fullscreen mode π§© System Architecture Overview text βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β MyZubster System Architecture β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ€ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Client Layer β β β β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β Web App β β Mobile App β β Admin β β β β β β (React) β β (React Nat.)β β Dashboard β β β β β ββββββββ¬ββββββββ ββββββββ¬ββββββββ ββββββββ¬ββββββββ β β β β β β β β β β βββββββββββΌββββββββββββββββββΌββββββββββββββββββΌβββββββββββββββββββββββββ β β β β β β β βΌ βΌ βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β API Gateway Layer β β β β β β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β β β Nginx / Traefik β β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β β β Rate β β SSL/TLS β β Load β β β β β β β β Limiting β β Term β β Balancing β β β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β β β ββββββββββββββββββββββΌβββββββββββββββββββββ β β β β β β β βΌ βΌ βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Microservices Layer β β β β β β β β βββββββββββββββββββββββ βββββββββββββββββββββββ β β β β β Gateway β β Marketplace β β β β β β (Monero Engine) β β (Core Backend) β β β β β β β β β β β β β β β’ Payment Init β β β’ User Management β β β β β β β’ Subaddress Gen β β β’ Skill CRUD β β β β β β β’ TX Monitoring β β β’ Order Management β β β β β β β’ Webhooks β β β’ Escrow System β β β β β β β’ Wallet Mgmt β β β’ PGP Services β β β β β ββββββββββ¬βββββββββββββ ββββββββββ¬βββββββββββββ β β β β β β β β β βββββββββββββΌβββββββββββββββββββββββββΌββββββββββββββββββββββββββββββββββ β β β β β β βΌ βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Data Layer β β β β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β MongoDB β β PostgreSQL β β Redis β β β β β β (Gateway) β β (Marketplace)β β (Cache) β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ π Data Flow Diagrams User Registration & Authentication Flow text βββββββββββ βββββββββββββββββ βββββββββββββββββ βββββββββββββββββ β Client β β API Gateway β β Marketplace β β PostgreSQL β ββββββ¬βββββ βββββββββ¬ββββββββ βββββββββ¬ββββββββ βββββββββ¬ββββββββ β β β β β 1. POST /api/auth/register β β ββββββββββββββββββΆβ β β β β β β β β 2. Forward Request β β β ββββββββββββββββββββββΆβ β β β β β β β β 3. Check email β β β β uniqueness β β β ββββββββββββββββββββββΆβ β β β β β β β 4. Email exists? β β β βββββββββββββββββββββββ β β β β β β β 5. Create user β β β β (hash password) β β β ββββββββββββββββββββββΆβ β β β β β β β 6. User created β β β βββββββββββββββββββββββ β β β β β β β 7. Generate JWT β β β β β β β 8. Return user + β β β β JWT token β β β βββββββββββββββββββββββ β β β β β β 9. JWT token β β β βββββββββββββββββββ β β β β β β Skill Creation Flow text βββββββββββ βββββββββββββββββ βββββββββββββββββ βββββββββββββββββ β Client β β API Gateway β β Marketplace β β PostgreSQL β ββββββ¬βββββ βββββββββ¬ββββββββ βββββββββ¬ββββββββ βββββββββ¬ββββββββ β β β β β 1. POST /api/skills β β β + JWT Token β β ββββββββββββββββββΆβ β β β β β β β β 2. Verify JWT β β β ββββββββββββββββββββββΆβ β β β β β β β β 3. Check role β β β β (seller/admin) β β β ββββββββββββββββββββββΆβ β β β β β β β 4. Role valid? β β β βββββββββββββββββββββββ β β β β β β β 5. Create skill β β β β (validate input) β β β ββββββββββββββββββββββΆβ β β β β β β β 6. Skill created β β β βββββββββββββββββββββββ β β β β β β 7. Return skill β β β βββββββββββββββββββββββ β β β β β β 8. Skill data β β β βββββββββββββββββββ β β β β β β Order & Payment Flow text βββββββββββ ββββββββββββββ ββββββββββββββ ββββββββββββββ ββββββββββββββ β Buyer β βMarketplace β β Gateway β β Monero β β Seller β ββββββ¬βββββ βββββββ¬βββββββ βββββββ¬βββββββ βββββββ¬βββββββ βββββββ¬βββββββ β β β β β β 1. Creates β β β β β Order β β β β ββββββββββββββΆβ β β β β β β β β β β 2. Request β β β β β Payment β β β β ββββββββββββββββΆβ β β β β β β β β β β 3. Generate β β β β β Subaddress β β β β ββββββββββββββββΆβ β β β β β β β β β 4. Return β β β β β Subaddress β β β β βββββββββββββββββ β β β β β β β β 5. Return β β β β β Subaddress β β β β βββββββββββββββββ β β β β β β β β 6. Show β β β β β Address β β β β βββββββββββββββ β β β β β β β β β 7. Send β β β β β Monero β β β β βββββββββββββββββββββββββββββββββββββββββββββββΆβ β β β β β β β β β 8. Monitor β β β β β Blockchain β β β β ββββββββββββββββΆβ β β β β β β β β β 9. Payment β β β β β Detected β β β β βββββββββββββββββ β β β β β β β β 10. Webhook β β β β β Payment β β β β βββββββββββββββββ β β β β β β β β β 11. Update β β β β β Order Status β β β β 12. Order β to "paid" β β β β Status β β β β βββββββββββββββ β β β β β β β β β β β β β β 13. Service β β β β β Delivered β β β β ββββββββββββββΆβ β β β β β β β β β β 14. Confirm β β β β β Delivery β β β β 15. Release ββββββββββββββββΆβ β β β Confirmed β β β β βββββββββββββββ β β β β β β β β β β β 16. Release β β β β β Funds β β β β ββββββββββββββββΆβ β β β β β β β β β 17. Transfer β β β β β to Seller β β β β ββββββββββββββββΆβ β β β β β β β β β β 18. Fund β β β β β Received β β β β βββββββββββββββββ β β β β β β β 19. Order β β β β β Completed β β β β 20. Order β β β β β Completed β β β β βββββββββββββββ β β β β β β β β ποΈ Database Schema PostgreSQL Schema (Marketplace) sql -- Users Table CREATE TABLE Users ( id SERIAL PRIMARY KEY, email VARCHAR(255) UNIQUE NOT NULL, password VARCHAR(255) NOT NULL, username VARCHAR(255) UNIQUE, name VARCHAR(255) NOT NULL, role VARCHAR(50) DEFAULT 'user', isActive BOOLEAN DEFAULT true, moneroAddress VARCHAR(255), pgpPublicKey TEXT, pgpFingerprint VARCHAR(40), location JSON, rating FLOAT DEFAULT 0, createdAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP, updatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); -- Skills Table CREATE TABLE Skills ( id SERIAL PRIMARY KEY, name VARCHAR(255) NOT NULL, description TEXT NOT NULL, price FLOAT NOT NULL, currency VARCHAR(10) DEFAULT 'USD', category VARCHAR(100), sellerId INTEGER NOT NULL REFERENCES Users(id) ON DELETE CASCADE, isActive BOOLEAN DEFAULT true, isFlagged BOOLEAN DEFAULT false, views INTEGER DEFAULT 0, rating FLOAT DEFAULT 0, createdAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP, updatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); -- Orders Table CREATE TABLE Orders ( id SERIAL PRIMARY KEY, buyerId INTEGER NOT NULL REFERENCES Users(id), sellerId INTEGER NOT NULL REFERENCES Users(id), skillId INTEGER NOT NULL REFERENCES Skills(id), amount FLOAT NOT NULL, currency VARCHAR(10) DEFAULT 'USD', status VARCHAR(50) DEFAULT 'pending', moneroAddress VARCHAR(255), moneroTxHash VARCHAR(255), escrowId INTEGER, paidAt TIMESTAMP, completedAt TIMESTAMP, cancelledAt TIMESTAMP, createdAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP, updatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); -- Escrows Table CREATE TABLE Escrows ( id SERIAL PRIMARY KEY, orderId INTEGER NOT NULL REFERENCES Orders(id), amount FLOAT NOT NULL, currency VARCHAR(10) DEFAULT 'USD', moneroAmount FLOAT NOT NULL, moneroAddress VARCHAR(255) NOT NULL, moneroTxHash VARCHAR(255), status VARCHAR(50) DEFAULT 'pending', buyerPublicKey TEXT, sellerPublicKey TEXT, arbitratorPublicKey TEXT, releaseSignatures JSON DEFAULT '[]', disputedAt TIMESTAMP, releasedAt TIMESTAMP, refundedAt TIMESTAMP, expiresAt TIMESTAMP, createdAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP, updatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); -- Disputes Table CREATE TABLE Disputes ( id SERIAL PRIMARY KEY, escrowId INTEGER NOT NULL REFERENCES Escrows(id), initiatorId INTEGER NOT NULL REFERENCES Users(id), arbitratorId INTEGER REFERENCES Users(id), reason TEXT NOT NULL, evidence JSON DEFAULT '[]', status VARCHAR(50) DEFAULT 'open', resolution TEXT, resolutionAmount FLOAT, resolvedAt TIMESTAMP, createdAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP, updatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); -- Messages Table (PGP Encrypted) CREATE TABLE Messages ( id SERIAL PRIMARY KEY, senderId INTEGER NOT NULL REFERENCES Users(id), recipientId INTEGER NOT NULL REFERENCES Users(id), orderId INTEGER REFERENCES Orders(id), encryptedContent TEXT NOT NULL, signature TEXT, encryptionFingerprint VARCHAR(40), isRead BOOLEAN DEFAULT false, readAt TIMESTAMP, deliveredAt TIMESTAMP, createdAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP, updatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); -- Indexes for Performance CREATE INDEX idx_users_email ON Users(email); CREATE INDEX idx_users_username ON Users(username); CREATE INDEX idx_skills_seller ON Skills(sellerId); CREATE INDEX idx_skills_category ON Skills(category); CREATE INDEX idx_orders_buyer ON Orders(buyerId); CREATE INDEX idx_orders_seller ON Orders(sellerId); CREATE INDEX idx_orders_status ON Orders(status); CREATE INDEX idx_orders_monero_address ON Orders(moneroAddress); CREATE INDEX idx_escrows_order ON Escrows(orderId); CREATE INDEX idx_escrows_status ON Escrows(status); CREATE INDEX idx_disputes_escrow ON Disputes(escrowId); CREATE INDEX idx_messages_sender ON Messages(senderId); CREATE INDEX idx_messages_recipient ON Messages(recipientId); MongoDB Schema (Gateway) javascript // Payment Collection { _id: ObjectId, orderId: String, subaddress: String, amount: Number, currency: String, moneroAmount: Number, addressIndex: Number, txHash: String, status: { type: String, enum: ['pending', 'confirmed', 'expired'], default: 'pending' }, confirmations: Number, amountReceived: Number, network: { type: String, enum: ['testnet', 'mainnet'], default: 'testnet' }, createdAt: Date, confirmedAt: Date, webhookDelivered: Boolean, webhookRetries: Number, webhookLastError: String } // Transaction Collection { _id: ObjectId, txHash: String, amount: Number, fromAddress: String, toAddress: String, blockHeight: Number, confirmations: Number, timestamp: Date, isIncoming: Boolean, relatedOrderId: String, createdAt: Date } π Scalability Architecture Horizontal Scaling Strategy text βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β Scaling Architecture β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ€ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Load Balancer β β β β (Nginx/HAProxy) β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β β β ββββββββββββββββββββββΌβββββββββββββββββββββ β β β β β β β βΌ βΌ βΌ β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β Gateway β β Gateway β β Gateway β β β β Instance 1 β β Instance 2 β β Instance 3 β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β β β ββββββββββββββββββββββΌβββββββββββββββββββββ β β β β β ββββββββββββββββββββββΌβββββββββββββββββββββ β β β β β β β βΌ βΌ βΌ β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β βMarketplace β βMarketplace β βMarketplace β β β β Instance 1 β β Instance 2 β β Instance 3 β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β β β ββββββββββββββββββββββΌβββββββββββββββββββββ β β β β β βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Database Cluster β β β β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β PostgreSQL β β PostgreSQL β β PostgreSQL β β β β β β Primary β β Replica 1 β β Replica 2 β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β MongoDB β β MongoDB β β MongoDB β β β β β β Primary β β Replica 1 β β Replica 2 β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β β β βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Redis Cluster (Cache) β β β β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β Redis 1 β β Redis 2 β β Redis 3 β β β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ Caching Strategy javascript // Redis Cache Implementation const redis = require('redis'); const client = redis.createClient({ host: process.env.REDIS_HOST, port: process.env.REDIS_PORT, password: process.env.REDIS_PASSWORD, retry_strategy: (options) => { if (options.error && options.error.code === 'ECONNREFUSED') { return new Error('The server refused the connection'); } if (options.total_retry_time > 1000 * 60 * 60) { return new Error('Retry time exhausted'); } if (options.attempt > 10) { return undefined; } return Math.min(options.attempt * 100, 3000); } }); // Cache middleware const cache = (duration = 300) => { return async (req, res, next) => { const key = cache:${req.originalUrl}; try { const cachedData = await client.get(key); if (cachedData) { return res.json(JSON.parse(cachedData)); } // Store original send function const originalSend = res.json; res.json = (data) => { client.setex(key, duration, JSON.stringify(data)); originalSend.call(res, data); }; next(); } catch (error) { next(); } Enter fullscreen mode Exit fullscreen mode }; }; // Cache invalidation on data changes const invalidateCache = async (pattern) => { const keys = await client.keys(pattern); if (keys.length > 0) { await client.del(keys); } }; // Example usage app.get('/api/skills', cache(300), async (req, res) => { // Skills will be cached for 5 minutes }); π Security Architecture text βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β Security Architecture β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ€ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Network Security β β β β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β SSL/TLS β β Firewall β β DDoS β β β β β β (HTTPS) β β (UFW) β β Protection β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β β β βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Application Security β β β β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β JWT Auth β β Rate β β Input β β β β β β β β Limiting β β Validation β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β PGP β β CSRF β β XSS β β β β β β Encryption β β Protection β β Prevention β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β β β βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Data Security β β β β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β Data β β Backup β β Audit β β β β β β Encryption β β Encryption β β Logging β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β β β Access β β Retention β β GDPR β β β β β β Control β β Policy β β Compliance β β β β β ββββββββββββββββ ββββββββββββββββ ββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ π Performance Optimization Database Indexing Strategy sql -- Optimize queries with covering indexes CREATE INDEX idx_orders_buyer_status ON Orders(buyerId, status); CREATE INDEX idx_orders_seller_status ON Orders(sellerId, status); CREATE INDEX idx_skills_seller_active ON Skills(sellerId, isActive); CREATE INDEX idx_users_email_role ON Users(email, role); -- Partial indexes for active data CREATE INDEX idx_skills_active ON Skills(id) WHERE isActive = true; CREATE INDEX idx_orders_pending ON Orders(id) WHERE status = 'pending'; API Response Compression javascript const compression = require('compression'); // Compress all responses app.use(compression({ level: 6, threshold: 1024, filter: (req, res) => { if (req.headers['x-no-compression']) { return false; } return compression.filter(req, res); } })); Connection Pooling javascript // PostgreSQL connection pool const { Pool } = require('pg'); const pool = new Pool({ host: process.env.DB_HOST, port: process.env.DB_PORT, database: process.env.DB_NAME, user: process.env.DB_USER, password: process.env.DB_PASSWORD, max: 20, idleTimeoutMillis: 30000, connectionTimeoutMillis: 2000, }); // MongoDB connection pool const mongoose = require('mongoose'); const connection = mongoose.createConnection(process.env.MONGODB_URI, { maxPoolSize: 10, minPoolSize: 2, maxIdleTimeMS: 30000, serverSelectionTimeoutMS: 5000, socketTimeoutMS: 45000, }); π High Availability Architecture text βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β High Availability Setup β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ€ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Global Load Balancer β β β β (Cloudflare/AWS ELB) β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β β β ββββββββββββββββββββββΌβββββββββββββββββββββ β β β β β β β βΌ βΌ βΌ β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β Region 1 β β Region 2 β β Region 3 β β β β (US-East) β β (EU-West) β β (AP-South) β β β ββββββββ¬βββββββ ββββββββ¬βββββββ ββββββββ¬βββββββ β β β β β β β βΌ βΌ βΌ β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β Service β β Service β β Service β β β β Cluster β β Cluster β β Cluster β β β βββββββββββββββ βββββββββββββββ βββββββββββββββ β β β β β β β ββββββββββββββββββββββΌβββββββββββββββββββββ β β β β β βΌ β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β Global Database Cluster β β β β (Multi-Region Replication) β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ β β β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ π Resources System Design: systemdesign.org Microservices: microservices.io High Availability: cloud.google.com/architecture Performance Optimization: web.dev/performance Enter fullscreen mode Exit fullscreen mode π Connect with Me π Blog & Articles: DEV.to - Daniel Ioni π¦ X (Twitter): @myzubster πΌ LinkedIn: Daniel Ioni π GitHub: DanielIoni-creator π΅ TikTok: @h4x0r_23 β Star the project on GitHub β it helps a lot! 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