89 lines
2.9 KiB
Markdown
89 lines
2.9 KiB
Markdown
# API Gateway
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## Overview
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The API Gateway service will provide a unified entry point for all external API requests to the stock-bot platform. It will handle request routing, composition, protocol translation, authentication, and other cross-cutting concerns, providing a simplified interface for clients while abstracting the internal microservice architecture.
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## Planned Features
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### Request Management
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- **Routing**: Direct requests to appropriate backend services
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- **Aggregation**: Combine results from multiple microservices
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- **Transformation**: Convert between different data formats and protocols
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- **Parameter Validation**: Validate request parameters before forwarding
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- **Service Discovery**: Dynamically locate service instances
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### Security Features
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- **Authentication**: Centralized authentication for all API requests
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- **Authorization**: Role-based access control for API endpoints
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- **API Keys**: Management of client API keys and quotas
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- **JWT Validation**: Token-based authentication handling
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- **OAuth Integration**: Support for OAuth 2.0 flows
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### Traffic Management
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- **Rate Limiting**: Protect services from excessive requests
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- **Throttling**: Client-specific request throttling
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- **Circuit Breaking**: Prevent cascading failures
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- **Load Balancing**: Distribute requests among service instances
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- **Retries**: Automatic retry of failed requests
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### Operational Features
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- **Request Logging**: Comprehensive logging of API activity
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- **Metrics Collection**: Performance and usage metrics
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- **Caching**: Response caching for improved performance
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- **Documentation**: Auto-generated API documentation
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- **Versioning**: Support for multiple API versions
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## Planned Integration Points
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### Frontend Connections
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- Trading Dashboard (web client)
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- Mobile applications
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- Third-party integrations
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- Partner systems
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### Backend Services
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- All platform microservices
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- Authentication services
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- Monitoring and logging systems
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## Planned Technical Implementation
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### Technology Stack
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- **API Gateway**: Kong, AWS API Gateway, or custom solution
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- **Runtime**: Node.js with TypeScript
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- **Documentation**: OpenAPI/Swagger
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- **Cache**: Redis for response caching
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- **Storage**: Database for API configurations
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### Architecture Pattern
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- Backend for Frontend (BFF) pattern
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- API Gateway pattern
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- Circuit breaker pattern
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- Bulkhead pattern for isolation
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## Development Guidelines
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### API Design
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- RESTful API design standards
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- Error response format
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- Versioning strategy
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- Resource naming conventions
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### Security Implementation
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- Authentication requirements
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- Authorization approach
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- API key management
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- Rate limit configuration
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### Performance Optimization
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- Caching strategies
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- Request batching techniques
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- Response compression
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- Timeout configurations
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## Implementation Roadmap
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1. Core routing and basic security features
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2. Traffic management and monitoring
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3. Request aggregation and transformation
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4. Advanced security features
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5. Developer portal and documentation
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