Network Layer Abstraction

Transcript

1. Rakesh Chander - Comviva Technologies NETWORK LAYER ABSTRACTION • Interceptors • Validators • Dependency Injection
2. Rakesh Chander - Comviva Technologies Problem Statement – Common Request / Response operations – Serialization / Deserialization – Bearer Token Management – End to End Encryption – Testable Code
3. Rakesh Chander - Comviva Technologies Unfolding – Common code templates & patterns – Generics – Abstraction – Over-riding behavior – Dependency Injection
4. Rakesh Chander - Comviva Technologies Interceptors ▪ Interceptors are a powerful mechanism that can pre-process or post-process a request
5. Rakesh Chander - Comviva Technologies Interceptors (Request Header Definition)
6. Rakesh Chander - Comviva Technologies Interceptors (Request Body Definition)
7. Rakesh Chander - Comviva Technologies Interceptors (Response Body Definition)
8. Rakesh Chander - Comviva Technologies Interceptors (Usage)
9. Rakesh Chander - Comviva Technologies Validators ▪ Serialization / Deserialization ▪ Fallback Mechanism ▪ Common Error Generation ▪ Bearer Token Management
10. Rakesh Chander - Comviva Technologies Adoption ▪ API call can be declared using structs, its simple ▪ Implement Protocols for required Request Type viz GET, POST, PUT, DELETE etc
11. Rakesh Chander - Comviva Technologies Adoption (Overriding defaults)
12. Rakesh Chander - Comviva Technologies Adoption (Execution)
13. Rakesh Chander - Comviva Technologies Conclusion ▪ Increased Productivity ▪ Lesser error scenarios
14. Rakesh Chander - Comviva Technologies Dependency Injection ▪ Multiple Network Clients ▪ Unit Tests
15. Rakesh Chander - Comviva Technologies Dependency Injection (Network Client Implementation)
16. Rakesh Chander - Comviva Technologies Dependency Injection (Network Client Mock)
17. Rakesh Chander - Comviva Technologies Summary Scalable, Maintainable, Reusable & Testable Interceptors – Wrappers, Parsers, End to End Encryption Validators – Serialization/ Deserialization, Fallback Response DAO, Token Management
18. Rakesh Chander - Comviva Technologies Try It Out! ▪ https://github.com/rakeshchander/RCNetworkClient