Solution Design Document

Full Implementation - Backend Framework

Option 2: Full Implementation

AI Playwright Test Agent

Solution Design Document (SDD)

Version: 2.0.0
Date: 2024
Status: Active

Executive Summary

Document này mô tả chi tiết giải pháp kỹ thuật đầy đủ cho việc xây dựng AI Playwright Test Agent với backend framework hoàn chỉnh, bao gồm Node.js/Express API, database, AI integration, và deployment infrastructure.

Mục tiêu Giải pháp

  • Automated Testing: Tự động hóa hoàn toàn quá trình tạo test từ codebase
  • Scalability: Xử lý nhiều projects và concurrent requests
  • AI-Powered: Sử dụng GPT-4 để generate intelligent test scripts
  • Production-Ready: Đầy đủ monitoring, logging, error handling
  • Enterprise-Grade: Security, authentication, rate limiting

Solution Overview

Backend API

Node.js + Express + TypeScript

  • RESTful API endpoints
  • WebSocket for real-time updates
  • Job queue với Bull
  • API documentation với Swagger

Database Layer

PostgreSQL + Redis

  • PostgreSQL cho persistent data
  • Redis cho caching & queue
  • TypeORM cho database access
  • Migration management

AI Services

OpenAI GPT-4 Integration

  • Script generation service
  • Rate limiting & retry logic
  • Cost optimization
  • Response validation

Parser Engine

AST Analysis & Processing

  • TypeScript Compiler API
  • React/Vue/Angular support
  • Multi-file processing
  • Element extraction

Test Execution

Playwright Test Runner

  • Headless browser execution
  • Parallel test running
  • Screenshot & video capture
  • Result reporting

Infrastructure

Docker + Kubernetes

  • Containerized deployment
  • Auto-scaling
  • Load balancing
  • Health monitoring

Technology Stack

Backend

Node.js 18+ TypeScript 5.0+ Express.js 4.18+ Socket.io

Database

PostgreSQL 15+ Redis 7+ TypeORM Prisma (optional)

Queue & Jobs

Bull Queue Redis Cron Jobs

AI & Testing

OpenAI GPT-4 Playwright TypeScript Compiler API

Security

JWT bcrypt Helmet.js Rate Limiter

DevOps

Docker Kubernetes GitHub Actions Terraform

Key Features

Multi-Project Support

Quản lý nhiều projects và codebases đồng thời với isolated processing

Real-time Progress Tracking

WebSocket integration để tracking tiến độ scanning và generation real-time

Asynchronous Processing

Job queue để xử lý long-running tasks không block API requests

Test History & Analytics

Lưu trữ lịch sử tests, metrics, và analytics cho mỗi project

User Management

Authentication, authorization, và multi-tenant support

API Rate Limiting

Protect API và OpenAI calls với intelligent rate limiting

Document Structure

Section 2: System Architecture - High-level architecture, components interaction
Section 3: Backend Design - API server design, middleware, controllers
Section 4: Database Schema - Entity models, relationships, migrations
Section 5: Core Services - Parser, Graph Builder, AI Writer services
Section 6: API Specification - RESTful endpoints, request/response formats
Section 7: Infrastructure - Docker, Kubernetes, cloud deployment
Section 8: Security - Authentication, authorization, data protection
Section 9: Testing Strategy - Unit, integration, E2E testing
Section 10: Deployment - CI/CD pipelines, release process