Custom Integration Guide

Complete guide to developing custom integrations with ContractAI

Overview

This document provides comprehensive guidance for developing custom integrations with ContractAI, including API development, web applications, and mobile apps.

Custom Integration Architecture

graph TD
    A[Custom Integration] --> B[API Development]
    A --> C[Web Apps]
    A --> D[Mobile Apps]
    A --> E[Authentication]

    B --> B1[REST API]
    B --> B2[GraphQL]
    B --> B3[gRPC]

    C --> C1[Frontend]
    C --> C2[Backend]
    C --> C3[Database]

    D --> D1[iOS]
    D --> D2[Android]
    D --> D3[Cross-platform]

    E --> E1[OAuth]
    E --> E2[JWT]
    E --> E3[API Keys]

API Development

API Architecture

graph TD
    A[API Layer] --> B[Endpoints]
    A --> C[Middleware]
    A --> D[Services]

    B --> B1[Routes]
    B --> B2[Controllers]
    B --> B3[Validation]

    C --> C1[Auth]
    C --> C2[Rate Limit]
    C --> C3[Logging]

    D --> D1[Business Logic]
    D --> D2[Data Access]
    D --> D3[External]

API Flow

sequenceDiagram
    participant Client
    participant API as API Gateway
    participant Auth as Auth
    participant Service as Service

    Client->>API: Request
    API->>Auth: Validate
    Auth->>API: Token
    API->>Service: Process
    Service->>Service: Business Logic
    Service->>API: Response
    API->>Client: Result

Web Application Integration

Frontend Integration

graph TD
    A[Frontend] --> B[Components]
    A --> C[State]
    A --> D[API]

    B --> B1[UI]
    B --> B2[Forms]
    B --> B3[Charts]

    C --> C1[Store]
    C --> C2[Actions]
    C --> C3[Reducers]

    D --> D1[Client]
    D --> D2[WebSocket]
    D --> D3[Cache]

Backend Integration

sequenceDiagram
    participant Frontend
    participant Backend
    participant ContractAI
    participant DB as Database

    Frontend->>Backend: Request
    Backend->>ContractAI: API Call
    ContractAI->>Backend: Response
    Backend->>DB: Store
    Backend->>Frontend: Result

Mobile App Integration

Mobile Architecture

graph TD
    A[Mobile] --> B[UI Layer]
    A --> C[Business Layer]
    A --> D[Data Layer]

    B --> B1[Screens]
    B --> B2[Navigation]
    B --> B3[Components]

    C --> C1[Services]
    C --> C2[Managers]
    C --> C3[Utils]

    D --> D1[API]
    D --> D2[Cache]
    D --> D3[Storage]

Mobile Flow

sequenceDiagram
    participant App
    participant SDK as Mobile SDK
    participant API as API
    participant Cache as Cache

    App->>SDK: Initialize
    SDK->>API: Authenticate
    API->>SDK: Token
    App->>SDK: Request
    SDK->>Cache: Check
    alt Cache Hit
        Cache->>App: Data
    else Cache Miss
        SDK->>API: Fetch
        API->>SDK: Data
        SDK->>Cache: Store
        SDK->>App: Data
    end

Authentication

Auth Flow

sequenceDiagram
    participant User
    participant App
    participant Auth as Auth
    participant API as API

    User->>App: Login
    App->>Auth: Request Token
    Auth->>App: Access Token
    App->>API: Request + Token
    API->>Auth: Validate
    Auth->>API: Valid
    API->>App: Response

Token Management

graph TD
    A[Tokens] --> B[Access]
    A --> C[Refresh]
    A --> D[Management]

    B --> B1[Generation]
    B --> B2[Validation]
    B --> B3[Revocation]

    C --> C1[Rotation]
    C --> C2[Storage]
    C --> C3[Security]

    D --> D1[Storage]
    D --> D2[Refresh]
    D --> D3[Cleanup]

Data Management

Data Flow

graph TD
    A[Data] --> B[Input]
    A --> C[Processing]
    A --> D[Output]

    B --> B1[Validation]
    B --> B2[Sanitization]
    B --> B3[Transformation]

    C --> C1[Business Logic]
    C --> C2[Rules]
    C --> C3[Workflow]

    D --> D1[Format]
    D --> D2[Delivery]
    D --> D3[Storage]

Cache Strategy

sequenceDiagram
    participant Client
    participant Cache
    participant API
    participant DB as Database

    Client->>Cache: Request
    alt Cache Hit
        Cache->>Client: Data
    else Cache Miss
        Cache->>API: Fetch
        API->>DB: Query
        DB->>API: Data
        API->>Cache: Store
        Cache->>Client: Data
    end

Error Handling

Error Flow

graph TD
    A[Errors] --> B[Client]
    A --> C[Server]
    A --> D[Network]

    B --> B1[Validation]
    B --> B2[Authentication]
    B --> B3[Authorization]

    C --> C1[Processing]
    C --> C2[Database]
    C --> C3[External]

    D --> D1[Timeout]
    D --> D2[Connection]
    D --> D3[Retry]

Recovery Strategy

sequenceDiagram
    participant Client
    participant API
    participant Retry as Retry
    participant Fallback as Fallback

    Client->>API: Request
    alt Success
        API->>Client: Response
    else Error
        API->>Retry: Attempt
        Retry->>API: Retry
        alt Success
            API->>Client: Response
        else Failure
            API->>Fallback: Use
            Fallback->>Client: Result
        end
    end

Testing

Test Architecture

graph TD
    A[Testing] --> B[Unit]
    A --> C[Integration]
    A --> D[E2E]

    B --> B1[Components]
    B --> B2[Services]
    B --> B3[Utils]

    C --> C1[API]
    C --> C2[Database]
    C --> C3[External]

    D --> D1[Scenarios]
    D --> D2[Flows]
    D --> D3[Performance]

Test Flow

sequenceDiagram
    participant Dev as Developer
    participant Test as Test Suite
    participant CI as CI/CD
    participant Deploy as Deploy

    Dev->>Test: Run Tests
    Test->>Test: Execute
    Test->>Dev: Results
    Dev->>CI: Push
    CI->>Test: Run
    Test->>CI: Pass
    CI->>Deploy: Deploy

Deployment

Deployment Architecture

graph TD
    A[Deployment] --> B[Environment]
    A --> C[Infrastructure]
    A --> D[Monitoring]

    B --> B1[Development]
    B --> B2[Staging]
    B --> B3[Production]

    C --> C1[Compute]
    C --> C2[Storage]
    C --> C3[Network]

    D --> D1[Metrics]
    D --> D2[Logs]
    D --> D3[Alerts]

Deployment Flow

sequenceDiagram
    participant Dev as Developer
    participant Build as Build
    participant Test as Test
    participant Deploy as Deploy

    Dev->>Build: Push Code
    Build->>Build: Package
    Build->>Test: Run Tests
    Test->>Deploy: Approve
    Deploy->>Deploy: Deploy
    Deploy->>Dev: Complete

Best Practices

Development

graph TD
    A[Best Practices] --> B[Code]
    A --> C[Security]
    A --> D[Performance]

    B --> B1[Standards]
    B --> B2[Documentation]
    B --> B3[Testing]

    C --> C1[Authentication]
    C --> C2[Authorization]
    C --> C3[Encryption]

    D --> D1[Optimization]
    D --> D2[Caching]
    D --> D3[Monitoring]

Security

graph TD
    A[Security] --> B[Data]
    A --> C[Access]
    A --> D[Network]

    B --> B1[Encryption]
    B --> B2[Validation]
    B --> B3[Sanitization]

    C --> C1[Auth]
    C --> C2[Roles]
    C --> C3[Permissions]

    D --> D1[HTTPS]
    D --> D2[Firewall]
    D --> D3[Monitoring]

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Need help with custom integration? Contact our integration team at [email protected] or visit our Integration Portal

Next Steps

1. Review requirements
2. Choose integration type
3. Set up development environment
4. Implement integration
5. Test thoroughly
6. Deploy and monitor

Additional Resources

• API Reference
• SDK Documentation
• Security Guide
• Integration Portal