1. Rest Services with Play Framework, MySQL, Adding Security with JWT
México

2. Independent Consultor #geek #traveler #speaker
Community Leader
JDuchess Chapter Guatemala, Devs+502
Ex-JUG Member
Guatemala Java Users Group (GuateJUG)
Independent Consultor
Full Stack Developer, Front-end y Back-end with Java, Mobile Development Android and iOS
CTO at Produactivity
#geek #traveler #speaker
Mercedes Wyss
@itrjwyss

3. Agenda Play Framework Web Services Restful JSONs
Database Connection (JPA, JDBC)
JWT (Json Web Tokens)

4. Agenda Play Framework Web Services Restful JSONs
Database Connection (JPA, JDBC)
JWT (Json Web Tokens)

6. Play Framework
Makes it easy to build web applications with Java and Scala.
Is based on a lightweight, stateless, web-friendly architecture.
Built on Akka, provides predictable and minimal resources consumption (CPU, memory, threads) for
highly-scalable applications.

8. Servidor:
1 CPU
2 GB Ram

9. Play Framework Develop using Java or Scala Is reactive
Use the architecture MVC
Uses Netty as App Server, AKKA Http since 2.6.x
(Fewer configurations)
Simulates the behavior of JRebel
(more code, less deploys)

11. JVM

12. Reactive

13. MVC

14. How start a Play project?
We need to use SBT Create sbt new playframework/play-scala-seed.g8 sbt new playframework/play-java-seed.g8 Deploy sbt run

16. Full
Project
Structure

17. Simple
Project
Structure

20. Agenda Play Framework Web Services Restful JSONs
Database connection (JPA, JDBC)
JWT (Json Web Tokens)

22. Web Services HyperText Transfer Protocol (HTTP)
Allows communication between a client and a server
Provide a standard means of interoperating between different software apps
Characterized for interoperability and extensibility
Based on XML

23. Linda. com (June 2017) https://www. lynda

24. SOAP Simple Object Access Protocol XML-based
Use WSDL as specification description
(Web Services Description Language)
Need to follow a communication protocol

26. Restful Software Architecture based on HTTP method
(Get, Post, Put, Delete, etc)
Typically use JSON, but can use XML, Text

27. Madhaiyan Muthu (June 2017) https://www. slideshare

29. Agenda Play Framework Web Services Restful JSONs
Database connection (JPA, JDBC)
JWT (Json Web Tokens)

31. JSON JavaScript Object Notation
Is a lightweight data-interchange format
Self-describing
Human-reading
Is a Protocol

32. JSON
Example

33. JSON
Scheme

34. Package controllers;
import play.libs.Json;
import play.mvc.Controller;
import play.mvc.Result;
public class HomeController extends Controller {
public Result index(){
JsonNode json = request().body().asJson();
PostRequest request = Json.fromJson(json, PostRequest.class);
return ok(Json.toJson(request)); }

35. Agenda Play Framework Web Services Restful JSONs JWT (Json Web Tokens)
Database connection (JPA, JDBC)

37. JWT
Is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object.

38. Auth0 (June 2017) https://cdn.auth0.com/content/jwt/jwt-diagram.png

39. JWT Structure

40. JWT Structure

41. JWT Structure

42. Agenda Play Framework Web Services Restful JSONs JWT (Json Web Tokens)
Database connection (JPA, JDBC)

46. To End Let’s Finish our Exercise
México