Kotlin Full-Stack Architecture Granular Generation and Integration Guide

🌟 Kotlin Full Stack Architecture Granular Generation and Integration Guide — Author: Wang Jiao Cheng#

🚀 Core Solution#

✨ 10 modules × 12 levels = 120 granules
🔄 Process: Granule Acquisition → Module Integration → Cross-Module Connection → Comprehensive Validation
🧰 Tools: Text Editor + File Manager

🧩 Granule Acquisition Phase#

📌 Create Main Directory: fullstack-app
📂 Establish Granule Library: fullstack-app/particles
🔢 Acquisition Rules:
▸ Module Order: Database → Entity → Repository → Service → Controller → Data Source → Repository → UseCase → ViewModel → UI
▸ Level Order: Each module from L0→L1→...→L11
📝 File Specification: module_name_Llevel_number.txt
💎 Example First Granule: Database_L0.txt

🏗️ Module Integration Phase#

🔧 Create Module Directory:
▸ 🖥️ Server: server/module_name
▸ 📱 Client: android/module_name
🔄 Processing Flow:
▸ Integrate in L0→L1→...→L11 order
▸ Store Content by Category:
⚙️ Configuration → config folder
💻 Code → src folder
🗃️ SQL → migrations folder
🔍 Key Checks:
✅ Class Structure and Method Mapping ✅ Full Security Coverage ✅ Atomic Operations Correct

🔗 Cross-Module Connection#

🔌 Connection Order:
🔹 Database → 🔹 Entity → 🔹 Repository → 🔹 Service → 🔹 Controller → 🔹 Data Source → 🔹 Repository → 🔹 UseCase → 🔹 ViewModel → 🔹 UI
🛠️ Interface Adaptation:
▸ Create global-adapters directory
▸ File Naming: source_target_Adapter.txt
💡 Solutions:
▸ 🔄 Data Format → Conversion Instructions
▸ ↔ Parameter Mismatch → Mapping Relationships
▸ ⏱️ Timing Issues → Execution Order

🧪 Project Validation#

🖥️ Server Checks:
▸ ✅ Structure Complete ▸ 🌐 API Response Testing
📱 Client Checks:
▸ 🔄 Data Flow ▸ 👆 Interaction Logic
🛒 Core Scenario Testing:
🔸 Registration → Login
🔸 Browsing → Ordering
🔸 Payment Settlement

📂 Directory Structure and Function Details#

🧩 Initial Granule Library Structure#

▸ 📁 fullstack-app/particles/Database/
　　▸ 📄 Database_L0.txt → Business Ecosystem Layer Definition (L0)
　　▸ 📄 Database_L1.txt → MySQL High Availability Configuration (L1)
　　▸ 📄 ...other level files
▸ 📁 fullstack-app/particles/Entity/
　　▸ 📄 Entity_L0.txt → Entity Basic Definition (L0)
　　▸ 📄 ...other level files
▸ 📁 fullstack-app/particles/...
　　(Other 8 modules organized in the same structure)

🏗️ Final Project Structure#

▸ 🖥️ fullstack-app/server/Database
　　▸ ⚙️ config/ → L1 System Layer Configuration
　　▸ 🗃️ migrations/ → L5 Package Structure Layer Scripts
　　▸ 💾 schema.sql → L9 Table Structure Definition
▸ 🖥️ fullstack-app/server/Entity
　　▸ 🧩 entities/ → L6 Class and Interface Layer Implementation
　　▸ 🧩 embeddable/ → L5 Package Structure Layer Components
▸ 🖥️ fullstack-app/server/Repository
　　▸ 📦 interfaces/ → L6 Repository Interfaces
　　▸ 🔍 implementations/ → L7 Custom Queries
▸ 🖥️ fullstack-app/server/Service
　　▸ ⚙️ impl/ → L7 Business Method Implementation
　　▸ 📣 events/ → L9 Domain Events
▸ 🖥️ fullstack-app/server/Controller
　　▸ 🌐 api/ → L6 Class Definitions
　　▸ 🔄 dto/ → L10 Expression Layer DTO Conversion
▸ 📱 fullstack-app/android/DataSource
　　▸ 📡 api/ → L6 Retrofit Interfaces
　　▸ 💾 local/ → L1 Caching Strategy
▸ 📱 fullstack-app/android/Repository
　　▸ 🔄 impl/ → L7 Repository Implementation
　　▸ 🚀 cache/ → L1 Intelligent Caching
▸ 📱 fullstack-app/android/UseCase
　　▸ ⚡ logic/ → L7 Core Business Logic
　　▸ ⚠️ exceptions/ → L8 Error Handling
▸ 📱 fullstack-app/android/ViewModel
　　▸ 🧠 state/ → L6 Class Definitions
　　▸ 🔄 transformers/ → L8 State Transformations
▸ 📱 fullstack-app/android/UI
　　▸ 🖌️ screens/ → L6 Composable Functions
　　▸ 🧩 components/ → L8 UI Component Blocks
▸ 🔌 fullstack-app/global-adapters
　　▸ 📄 Controller_DataSource_Adapter.txt → Interface Adaptation Plan
▸ 🧪 fullstack-app/validation
　　▸ 📄 user-register-flow.txt → User Registration Process Testing
　　▸ 📄 product-order-flow.txt → Product Ordering Testing

⚠️ Key Points#

🚫 Order Iron Rule
▸ Module Sequence: Database→UI is irreversible
▸ Level Sequence: L0→L11 cannot be skipped
🔖 Version Control
▸ File Header Mark: Version V1.0｜Date
▸ Backup every 20 granules
❗ Problem Solving
▸ Content Missing → Reacquire Granules
▸ Interface Anomalies → global-adapters Plan
▸ Logic Conflicts → Business Priority Decisions

⚡ Efficient Strategies#

📅 Batch Processing:
▸ 🟢 Phase One: Server Basic Layer (Database+Entity)
▸ 🔵 Phase Two: Server Business Layer (Repository+Service)
▸ 🟣 Phase Three: Server Interface Layer (Controller)
▸ 🟡 Phase Four: Client Data Layer (DataSource+Repository)
▸ 🟠 Phase Five: Client Presentation Layer (UseCase+ViewModel+UI)
🚀 Startup Steps
🔸 Create fullstack-app/particles
🔸 Acquire First Granule: "Database Module L0"
🔸 Save as particles/Database/Database_L0.txt
✅ Completion Mark
▸ 120 Granules Fully Archived
▸ Three Scenario Tests Passed

💎 Additional Notes#

🔎 Granule Identifier: File Header [Module] Level[Number]
🔗 Dependency Declaration: File Footer Marking Dependency Relationships
🎯 Acceptance Criteria:
▸ 🖥️ Server: All API Responses Normal
▸ 📱 Client: Core Business Process Closed Loop

✨ Operation Mnemonic:
Create Directory → Acquire Granules → Integrate Modules
Connect Systems → Validate Scenarios → Form Project

🔥 Key Tips:
Prioritize completing Database_L1 (System Layer) and Controller_L3 (Security Layer)
Can prevent 80% of integration issues!

⏱️ Performance Benchmark:
Server Response < 500ms | Client Load < 1 second

🛡️ Security Points:
Must Check Database_L3 (TLS Encryption) + Controller_L3 (JWT Authentication)

🚨 Common Pitfalls Reminder#

▸ ⚠️ Connection Order Trap
Server Controller must be completed before starting Client DataSource module
Skipping levels will cause compilation errors
▸ ✏️ Version Control Points
Update version number after modifying granule files
Key backup nodes: End of Phase 1/3/5
▸ 🔧 Adapter Creation Rules
Create only when interface issues are found during validation phase
Must record adaptation reasons and solutions

🌈 Success Secret:
Strictly follow the 10 module order
Refer to global-adapters case library when encountering issues
Validate immediately after completing each phase!

📋 Final Checklist#

🔍 10 Module Directory Fully Created
🔗 Cross-Module Dependency Relationships Clearly Marked
🛡️ Security Layer (L3) Double Validation
⚡ Performance Benchmark Testing Standards Met
✅ Three Scenario Business Flow Closed Loop Validation

🎉 Completion Declaration:
When the 10 modules are perfectly integrated, and all three scenario tests are green-lit
Your full stack architecture is ready!