{"id":48941,"date":"2025-09-17T18:14:49","date_gmt":"2025-09-17T18:14:49","guid":{"rendered":"https:\/\/becolve.com\/blog\/servicos-rest-versus-web-services\/"},"modified":"2025-09-17T18:14:49","modified_gmt":"2025-09-17T18:14:49","slug":"servicos-rest-versus-web-services","status":"publish","type":"blog","link":"https:\/\/becolve.com\/pt-pt\/blog\/servicos-rest-versus-web-services\/","title":{"rendered":"Servi\u00e7os REST versus Web Services"},"content":{"rendered":"<p>Terceiro e \u00faltimo artigo dedicado aos <strong>servi\u00e7os REST<\/strong>:<\/p>\n<p>Tanto os <strong>Servi\u00e7os Web baseados em REST (RESTful Web Services)<\/strong> como os <strong>Web Services baseados em SOAP<\/strong> t\u00eam uma arquitetura Cliente-Servidor para que os clientes possam obter informa\u00e7\u00f5es do servidor via Web. No entanto, ambos os servi\u00e7os t\u00eam uma maneira diferente de aceder \u00e0 informa\u00e7\u00e3o. <\/p>\n<p>A primeira diferen\u00e7a \u00e9 o modo de estruturar a informa\u00e7\u00e3o. <strong>Os Web Services permitem o acesso \u00e0 informa\u00e7\u00e3o do servidor atrav\u00e9s de verbos ou fun\u00e7\u00f5es<\/strong>. Um cliente de Web Services deve chamar uma fun\u00e7\u00e3o que o servidor executar\u00e1 e devolver\u00e1 o resultado. Por exemplo, poderia ter esta forma:  <\/p>\n<p><em>http:\/\/www.MiEmpresa.com\/Sensores\/RecogeDatosSensor(Sensor001)<\/em><\/p>\n<p>No entanto, os servi\u00e7os Rest est\u00e3o <strong>orientados para os recursos ou objetos.<\/strong><\/p>\n<p><em>http:\/\/www.MiEmpresa.com\/Sensores\/Sensor001<\/em><\/p>\n<p>Ao n\u00e3o existirem verbos nos servi\u00e7os REST, <strong>n\u00e3o existem fun\u00e7\u00f5es para recolher o cat\u00e1logo completo de recursos.<\/strong> A solu\u00e7\u00e3o \u00e9 criar um recurso novo que represente o cat\u00e1logo completo de recursos:<\/p>\n<p><em>http:\/\/www.MiEmpresa.com\/Sensores<\/em><\/p>\n<p>A resposta a esta solicita\u00e7\u00e3o poder\u00e1 ser uma <strong>listagem de recursos a partir da qual compor os URL de cada recurso<\/strong>. Inclusive, poder\u00e1 existir um link em cada um dos identificadores devolvidos para que n\u00e3o seja necess\u00e1rio compor o novo URL, mas que seja suficiente copi\u00e1-lo. <\/p>\n<p>Outra diferen\u00e7a importante entre Servi\u00e7os <strong>Web tipo REST e Servi\u00e7os Web baseados em SOAP<\/strong> \u00e9 que, neste \u00faltimo, \u00e9 necess\u00e1rio utilizar ferramentas de desenvolvimento para gerar os clientes a partir do WSDL. Isto implica que o resultado deve ser compilado em alguma linguagem e posto em funcionamento em algum dispositivo capaz de interpretar o c\u00f3digo compilado. Pelo contr\u00e1rio, os Servi\u00e7os Web tipo REST n\u00e3o precisam de compilar nenhuma fun\u00e7\u00e3o do servidor e utilizam <strong>os m\u00e9todos padr\u00e3o do protocolo HTTP<\/strong>, muito f\u00e1ceis de implementar em dispositivos clientes. Desta forma, qualquer sensor capaz de se conectar a uma rede com um endere\u00e7o IP, que, portanto, implementa HTTP, ser\u00e1 capaz de consumir servi\u00e7os REST. Ganha-se, portanto, em universalidade.    <\/p>\n<p>No entanto, esta facilidade de implementa\u00e7\u00e3o tem as suas limita\u00e7\u00f5es. Por exemplo, <strong>WSDL define os tipos de vari\u00e1veis trocadas<\/strong> entre servidor e clientes, inclusive podem ser estruturas complexas. <\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2658\" src=\"https:\/\/becolve.com\/wp-content\/uploads\/2023\/04\/HTTP.jpg\" alt=\"HTTP\" width=\"1080\" height=\"350\"><\/p>\n<p><strong>Conclus\u00f5es<\/strong><\/p>\n<p>Com o atual volume de informa\u00e7\u00e3o na Web, <strong>torna-se necess\u00e1rio procurar um modo simples de trocar informa\u00e7\u00e3o entre dispositivos<\/strong>, ou dos dispositivos para sistemas na nuvem. Existem diferentes modos de trocar informa\u00e7\u00e3o entre m\u00e1quinas, mas um modo realmente simples de implementar \u00e9 o baseado nos servi\u00e7os REST. <\/p>\n<p>Os <strong>servi\u00e7os REST<\/strong> n\u00e3o s\u00e3o um conceito novo, mas simplesmente <strong>definem alguns princ\u00edpios de arquitetura para o acesso de informa\u00e7\u00e3o na Web<\/strong>. Definem-se alguns recursos num ou v\u00e1rios servidores que s\u00e3o acess\u00edveis atrav\u00e9s de m\u00e9todos padr\u00e3o de HTTP como GET, PUT, POST ou DELETE. \u00c9 como se estivessem a ser geradas p\u00e1ginas Web acess\u00edveis a partir do protocolo padr\u00e3o HTTP, ou seja, acess\u00edveis a partir de qualquer cliente Web.  <\/p>\n<p>Os servi\u00e7os R<strong>EST nem sempre s\u00e3o a melhor op\u00e7\u00e3o para a troca de informa\u00e7\u00e3o entre servidor e clientes,<\/strong> mas \u00e9 t\u00e3o simples de utilizar e implementar que est\u00e1 a ganhar cada vez mais presen\u00e7a na Internet. Um simples sensor conectado \u00e0 Internet e que seja capaz de implementar o protocolo HTTP pode fazer parte de uma arquitetura REST. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00daltimo artigo dedicado aos servi\u00e7os REST, no qual contrapomos as suas presta\u00e7\u00f5es ao servi\u00e7o web<\/p>\n","protected":false},"author":31,"featured_media":48943,"menu_order":0,"template":"","categories":[977],"tags":[998,1038],"arquitectura":[1842],"area":[],"sector":[],"experto":[204],"weborigen":[136],"productos-tax":[87],"soluciones-tax":[213],"marcas-tax":[],"coauthors":[],"class_list":["post-48941","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-comunicacoes","tag-kepserverex","tag-rest","arquitectura-comunicacoes-industriais","experto-comunicacoes-industriais","weborigen-comunicacionesindustiraleslogitek-com","productos-tax-opc-router","soluciones-tax-communication-hub-pt-pt"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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