DWD API Functional Specifications

Overview

The DWD API provides a RESTful interface for managing water distribution network simulations and data within the HydroTrek DWD Suite. It serves as a backend/middleware orchestrator, handling authentication, data management, and simulation control.

System Workflow

Authentication Flow

Simulation Workflow

Core Functionality

1. Authentication & Authorization

• JWT-based authentication
• Role-based access control
• Secure token validation
• CORS policy management

2. Data Management

• PostgreSQL database integration
• Entity Framework Core operations
• Data persistence
• Query optimization

3. API Management

• RESTful endpoint handling
• Swagger documentation
• Request/Response processing
• Error management

Functional Requirements

Authentication

1. JWT Management

   • Token generation
   • Token validation
   • Token refresh
   • Token revocation

2. Authorization

   • Role-based access
   • Permission management
   • Policy enforcement
   • Access control

3. Security

   • HTTPS enforcement
   • CORS policy
   • Header security
   • Request validation

Data Management

1. Database Operations

   • CRUD operations
   • Query execution
   • Transaction management
   • Connection handling

2. Data Validation

   • Input validation
   • Data integrity
   • Business rules
   • Error handling

3. Data Processing

   • Data transformation
   • Response formatting
   • Error handling
   • Logging

API Management

1. Endpoint Management

   • Route handling
   • Request processing
   • Response formatting
   • Error handling

2. Documentation

   • Swagger integration
   • API documentation
   • Example requests
   • Response schemas

3. Error Handling

   • HTTP status codes
   • Error messages
   • Logging
   • Client feedback

Interface Requirements

API Endpoints

1. Authentication

   • Login
   • Logout
   • Token refresh
   • Password reset

2. Data Operations

   • CRUD endpoints
   • Query endpoints
   • Batch operations
   • File operations

3. Simulation Control

   • Start simulation
   • Stop simulation
   • Get status
   • Get results

Performance Requirements

Response Time

1. API Performance

   • Fast response times
   • Efficient processing
   • Resource optimization
   • Caching strategy

2. Database Performance

   • Query optimization
   • Connection pooling
   • Transaction management
   • Resource cleanup

Integration Requirements

External Systems

1. Database Integration

   • PostgreSQL connection
   • Query execution
   • Transaction management
   • Connection pooling

2. Client Integration

   • CORS support
   • Authentication
   • Error handling
   • Response formatting

3. Proxy Integration

   • Nginx support
   • Header forwarding
   • SSL termination
   • Load balancing