.NET Fest 2019. Сергій Бута. Feature Toggles: Dynamic Configuration at Wirex
- 2. I pay my way. I pay by Wirex. We give you the power to use your money, your way, on one borderless payment platform. Buy, store, exchange and spend your digital or traditional currencies, anytime, anywhere.
- 3. First try Expansion to clients Growing inside
- 4. Feature Toggle Example Feature Toggles: First Try if (FeatureAvailable(“OrderCard”)) ShowOrderCardButton( ); else ShowWaitingListPage( );
- 5. Old Backend Backend Workers Azure Service Bus API Feature Toggles: First Try
- 6. Maintenance 200; false GET /ismaintenance 200; true 500 ClientsAPI Feature Toggles: First Try
- 7. Enabling maintenance IsMaintenance = true DevOps API Config Feature Toggles: First Try
- 8. Maintenance as a Kill-Switch Feature Toggles: First Try if (IsUnderMaintenance) ShowMaintenancePage( ); else ShowHomePage( );
- 9. First try Expansion to clients Growing inside
- 10. Feature Context Feature name Enabled True False “Exchange” “Transfer” Feature Toggles: Growing inside
- 11. Feature Context • Email • Country • Verification Status Feature Toggles: Growing inside
- 12. Features DB Architecture 1 Feature Rule Set 1…n Rules 1 1…n Feature Toggles: Growing inside
- 13. Rule sets Priority Name 100 Type Reason 10 000 20 000 Allow all Allow all Deny all Allow Allow Deny - - Unavailable Feature Toggles: Growing inside
- 14. Rules Value Property Operator “UA” “Country” “Equals” “autotest” “Email” “StartsWith” Feature Toggles: Growing inside
- 17. Get Features: Improvements Features Version hash . . . . . . . . . . . . Feature Toggles: Growing inside
- 18. In – memory cache API Node 1 Node 2 Redis Feature Toggles: Growing inside
- 19. Feature validation ClientsAPI Configuration Microservices Workers Feature Toggles: Growing inside
- 20. Validation issue time Client Request Feature changed API Validation V x Transactions Validation Feature Toggles: Growing inside
- 21. FiatAccount Redis Service Redis No FA Yes Use Redis? Feature Toggles: Growing inside
- 22. First try Expansion to clients Growing inside
- 23. Namespaces backend.CardOrder backend.tech.NewRedisClient client.public.NewSignupFlow Feature Toggles: Expansion to clients
- 24. Client Features Clients GET /features Configuration 1) Built in 2) Dynamic API Clients Feature Toggles: Expansion to clients
- 25. Actions Global actions Object actions: • Profile • Accounts • Cards Feature Toggles: Expansion to clients
- 26. Global Actions GET /actions Profile: VerifyDocuments: “AlreadyDone” ChangeCountry: “NotAllowed” VerifyPhone: allowed Feature Toggles: Expansion to clients
- 27. Evaluation chains IsFeatureAvailable IsProfileVerified IsNotNegativeBalance Chain Feature Toggles: Expansion to clients
- 28. Evaluation chains IsFeatureAvailable IsProfileVerified IsNotNegativeBalance Chain Reason: Not available Allowed: false No Feature Toggles: Expansion to clients
- 29. Change flow GET /cards/{id} Actions: Validate: allowed SetPIN: “NotAllowed” LinkAccounts: “PinRequired” Activate: “AccountsRequired” Feature Toggles: Expansion to clients
- 30. Change flow Actions: Validate: “AlreadyDone” SetPIN: allowed LinkAccounts: “PinRequired” Activate: “AccountsRequired” Feature Toggles: Expansion to clients GET /cards/{id}
- 31. Change flow Actions: Validate: allowed SetPIN: “Notallowed” LinkAccounts: “PinRequired” Activate: “AccountsRequired” Feature Toggles: Expansion to clients GET /cards/{id}
- 32. Change flow Actions: Validate: “AlreadyDone” SetPIN: “Notallowed” LinkAccounts: “PinRequired” Activate: “Allowed” Feature Toggles: Expansion to clients GET /cards/{id}
- 33. Validation Validation Back End Clients Validation API Feature Toggles: Expansion to clients