Modern Tools for Modern Applications

We're all distributed systems programmers now. Services are the new processes. Our tools don't realize this yet. This talk covers some of the first-generation tools for modern distributed applications.

Transcript

1. John Sheehan
   CEO, Runscope
   Modern Tools
   for Modern Applications
   Thursday, October 3, 13
   

   View Slide

2. What is a
   modern
   application?
   Thursday, October 3, 13
   

   View Slide

3. Mobile &
   Desktop
   Apps
   Web Sites &
   Applications
   Internal APIs
   3rd-party
   Service APIs
   Public APIs
   Thursday, October 3, 13
   

   View Slide

4. Thursday, October 3, 13
   

   View Slide

5. A Modern
   Application
   Is Distributed
   Thursday, October 3, 13
   

   View Slide

6. “There's just no
   getting around it:
   you're building a
   distributed system.
   -- Mark Cavage, ACM Queue
   Thursday, October 3, 13
   

   View Slide

7. The Old Way
   Process-Oriented
   Thursday, October 3, 13
   

   View Slide

8. Database
   Web Apps
   fn(x)
   Client
   Apps
   fn(x)
   Thursday, October 3, 13
   

   View Slide

9. Troubleshooting a performance
   issue in a process-oriented
   architecture
   Thursday, October 3, 13
   

   View Slide

10. Debug process-level code.
    Inspect inter-process communication.
    Analyze network/hardware issues.
    Thursday, October 3, 13
    

    View Slide

11. The New Way
    Service-Oriented
    Thursday, October 3, 13
    

    View Slide

12. Mobile &
    Desktop
    Apps
    Web Sites &
    Applications
    Internal APIs
    3rd-party
    Service APIs
    Public APIs
    Thursday, October 3, 13
    

    View Slide

13. “Services are the
    new processes.
    -- Mark Cavage, ACM Queue
    Thursday, October 3, 13
    

    View Slide

14. Mobile &
    Desktop
    Apps
    Web Sites &
    Applications
    Internal APIs
    3rd-party
    Service APIs
    Your Public APIs
    fn(){}
    fn(){}
    fn(){}
    fn(){}
    fn(){}
    Thursday, October 3, 13
    

    View Slide

15. fn(){} fn(){}
    fn(){}
    fn(){} fn(){}
    YOUR APPLICATION
    Thursday, October 3, 13
    

    View Slide

16. Troubleshooting a performance
    issue in a service-oriented
    architecture.
    Thursday, October 3, 13
    

    View Slide

17. The API’s code.
    The API’s database.
    The API’s server.
    The API’s network.
    Your code.
    Your server.
    Your network.
    Debug
    Test
    Monitor
    Mitigate
    Thursday, October 3, 13
    

    View Slide

18. Debugging
    Thursday, October 3, 13
    

    View Slide

19. printf  ("new  value:  %d",  i);
    Thursday, October 3, 13
    

    View Slide

20. Thursday, October 3, 13
    

    View Slide

21. console.log("status:  "  +  
    resp.status);
    Thursday, October 3, 13
    

    View Slide

22. But there's hope!
    Thursday, October 3, 13
    

    View Slide

23. RequestBin Inspect webhooks
    ngrok Introspectable localhost proxy
    mitmproxy Man-in-the-middle proxy
    Postman Chrome HTTP request editor
    PonyDebugger iOS HTTP request inspector
    Runscope API debugging and testing
    Thursday, October 3, 13
    

    View Slide

24. Testing
    Thursday, October 3, 13
    

    View Slide

25. frisbyjs Node.js API testing framework
    VCR Ruby HTTP record/playback
    FakeWeb Ruby mock HTTP response
    Mocky.io Mock HTTP responses via URL
    httptest Go HTTP testing utilities
    Runscope Stay tuned :)
    Thursday, October 3, 13
    

    View Slide

26. Thursday, October 3, 13
    

    View Slide