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

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

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

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.

Servidor: 1 CPU 2 GB Ram

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)

JVM

Reactive

MVC

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

Full Project Structure

Simple Project Structure

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

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

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

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

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

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

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

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

JSON Example

JSON Scheme

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)); }

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

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.

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

JWT Structure

JWT Structure

JWT Structure

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

To End Let’s Finish our Exercise México