API Management Strategy
This document outlines the management strategy for APIs to ensure efficiency, security, and scalability across the service.
1. API Design
- Consistency: Ensure a consistent design across all APIs using REST principles.
- Data Format: Well-formed JSON, with data elements that are valid strong types. Ensure open standards are used (i.e. ISO 8601 - Datetime formats and ISO 639 - Language codes).
- Documentation: Provide auto-generated, detailed API documentation using OpenAPI.
2. Access Control
- Authentication: API keys are used to secure HTTP-triggered functions within Function Apps
- IP Whitelisting: Only allow internal IP addresses and specific server access to the API.
3. Security
- Encryption: Encrypt data in transit using HTTPS with TLS. Ensure encryption of sensitive data at rest.
- Input Validation: Implement strict validation on incoming API requests to prevent SQL injection, XSS, and other attacks.
- Logging: Ensure that all API access and errors are logged for auditing purposes.
4. Lifecycle Management
- Development: APIs should follow CI/CD pipelines with automated testing (unit, integration, and performance testing) before deployment.
- Testing: Create mock environments to test APIs in isolation before production.
- Environment Segregation: Separate API environments for development, testing, staging, and production.
5. Performance and Scalability
- Elastic scaling: Ensure automatic scaling of resources up or down in response to changing demand, ensure just enough resources are provisioned to handle the workload efficiently.
6. Monitoring and Analytics
- Metrics: Track key metrics such as API response times, error rates, and request volumes.
- Alerts: Set up alerting systems (via email and Teams) for incidents such as failed requests, security violations, or performance issues.
- Usage Analytics: Monitor API usage to understand patterns and improve performance or allocate resources.
9. Tools and Technologies
- CI/CD: Use Azure DevOps pipelines for automated testing, deployment, and continuous integration.
- Logging and Monitoring: Use Azure stack (Application Insights and Log Analytics) for logging, monitoring and performance metrics.
10. Governance and Policies
- Code Reviews: Enforce peer code reviews for all API changes to ensure security and consistency.
- Audits: Conduct regular audits of API usage and security.