Construíndo APIs usando Rails

Rafael Felix

Rafael quem?

Rafael FelixSoftware Developer

Rafael quem?

Aplicação Servidor Externo

Aplicação Servidor Externo

XML

WS - SOAP

Aplicação Servidor Externo

Aplicação Servidor Externo

app-servidor

Aplicação Servidor Externo

app-servidor

JSON RESTfull

XMLWS - SOAP

Aplicação Servidor Externo

app-servidor

JSON RESTfull

XMLWS - SOAP

Cliente

Aplicação Servidor Externo

app-servidor

JSON RESTfull

XMLWS - SOAP

HTTPHTML

API - JSONRESTfull

Cliente

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] endend

resource :xpto, :only => [:show]

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] respond_to do |format| format.html format.json{ render :json => @xpto } end endend

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] respond_to do |format| format.html format.json{ render :json => @xpto } end endend

{ "id": 1, "text": "Foo Bar", "created_at": "2012-04-12T01:37:27Z", "updated_at": "2012-04-12T01:37:27Z"}

@xpto.to_json

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] respond_to do |format| format.html format.json{ render :json => @xpto.to_json(:include => [:children]) } end endend

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] respond_to do |format| format.html format.json{ render :json => @xpto.to_json(:include => [:children]) } end endend

@xpto.to_json

JSON::ParserError: 756: unexpected token at

E agora quem poderá nos defender?

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] respond_to do |format| format.html format.json{ render :json => @xpto.to_json(:include => [:children]) } end endend

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] respond_to do |format| format.html format.json{ render :json => @xpto.as_json(:include => [:children]) } end endend

class XptoController < ApplicationController def show @xpto = Xpto.find params[:id] respond_to do |format| format.html format.json{ render :json => @xpto } end endend

class Xpto def as_json(options={}) super(options.merge(:include => [:children])) endend

class YptoController < ApplicationController respond_to :html, :json def show @xpto = Xpto.find params[:id] respond_with @xpto endend

https://github.com/nesquena/rabl

app/views/xpto/show.json.rabl

object @xptochild :children do attributes :id, :name, :descriptionend

app/views/ypto/show.json.rabl

object @xptochild :owner do attributes :id, :nameend

https://github.com/rails/jbuilder

json.(@xpto, :id, :text, :created_at, :updated_at)json.children @xpto.children, :id, :name, :description

app/views/xpto/show.json.jbuilder

app/views/ypto/show.json.jbuilder

json.(@xpto, :id, :text, :created_at, :updated_at)json.owner do |json| json.id @xpto.owner.id json.name @xpto.owner.name json.description @xpto.owner.descriptionend

class XptoController < ApplicationController respond_to :html, :json def show @xpto = Xpto.find params[:id] respond_with @xpto endend

Obrigado!@rs_felix

felix.rafael@gmail.com