Migrate Exchange REST API to Serverless
Proposal to migrate exchange REST API to Exchange serverless stack
Summary
Proposal to migrate the exchange REST API to a serverless architecture using the Exchange serverless stack.
Rationale
[To be filled in - reasons for migrating to serverless]
Key benefits expected:
- Improved scalability
- Reduced operational overhead
- Cost optimization through pay-per-use model
- Enhanced deployment flexibility
Affected Applications
- flux-exchange-service-al239 - Django REST based Web Service for Exchange Message workflows
Impact
Services Affected
- Exchange REST API endpoints
- [List additional services]
Technical Considerations
- API contract compatibility
- Authentication/authorization changes
- Performance characteristics
- Monitoring and logging setup
Data Considerations
- Database connection management
- State management in serverless environment
- Caching strategy
Implementation Plan
Phase 1: Assessment & Design
- Audit current REST API endpoints
- Design serverless architecture
- Evaluate AWS Lambda/serverless framework
- Define resource requirements
- Create proof of concept
Phase 2: Development
- Set up serverless infrastructure
- Implement API endpoints in serverless stack
- Configure API Gateway/routing
- Implement authentication/authorization
- Set up monitoring and logging
- Create automated tests
Phase 3: Migration
- Deploy to staging environment
- Performance testing
- Load testing
- Security review
- Create rollback plan
Phase 4: Cutover
- Deploy to production
- Update DNS/routing
- Monitor performance
- Decommission old infrastructure
Risks & Mitigation
| Risk | Impact | Mitigation |
|---|---|---|
| API downtime during migration | High | Blue-green deployment with gradual traffic shift |
| Performance degradation | Medium | Thorough load testing before cutover |
| Cold start latency | Medium | Implement provisioned concurrency for critical endpoints |
| Breaking changes to API contract | High | Maintain backward compatibility, version API |
| Increased complexity | Medium | Comprehensive documentation and runbooks |
Timeline
[To be determined]
Status
Current Status: Draft
History:
- 2025-12-22: Proposal created