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262 lines
9.8 KiB
262 lines
9.8 KiB
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<title>Entendendo DJANGO</title> |
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<meta name="author" content="Hakim El Hattab"> |
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<body> |
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<div class="reveal"> |
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<div class="slides"> |
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<section data-background='_images/django-rest.png'> |
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<h1 class='semi-opaque'>Entendendo Django REST Framework</h1> |
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</section> |
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<section> |
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<section> |
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<h2>Review Django</h2> |
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<ul> |
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<li>Request de um browser chega no Django;</li> |
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<li>Consulta o urls.py base do projeto para encontrar o |
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que será executado;</li> |
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<li>Consulta o urls.py da app (no caso) para encontrar |
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a view que será executada;</li> |
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<li>Encontra a view dentro da app, que busca as informações no model;</li> |
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<li>Renderiza o template;</li> |
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<li>Retorna o template renderizado para o usuário.</li> |
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</ul> |
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</section> |
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</section> |
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<section> |
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<section> |
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<h2>Interlúdio: REST</h2> |
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<img src="_images/intermission_3696.jpg" alt=""/> |
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</section> |
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<section> |
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<h3>REST: Recursos</h3> |
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<p>Elementos são chamados "recursos" e fazem parte da URL.</p> |
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<ul> |
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<li>Recurso <i>usuários</i>: <code>/user</code>;</li> |
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<li>Recurso <i>orders</i>: <code>/order</code>;</li> |
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<li>Recurso <i>produtos</i>: <code>/product</code></li> |
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</ul> |
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</section> |
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<section> |
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<h3>REST: Recursos</h3> |
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<p>Recursos específicos são indicados também na URL depois |
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da URL base do recurso, apontados por sua chave principal.</p> |
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<ul> |
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<li><i>Usuário</i> <strong>1</strong>: <code>/user/1/</code></li> |
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<li><i>Produto</i> <strong>ws-1243</strong>: <code>/product/ws-1243/</code></li> |
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</ul> |
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</section> |
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<section> |
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<h3>REST: Recursos</h3> |
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<p>Recursos podem estar aninhados.</p> |
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<ul> |
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<li><code>/user/1/order</code>: Todos os pedidos do usuário <strong>1</strong>.</li> |
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<li><code>/user/1/order/2</code>: Pedido <strong>2</strong> do usuário <strong>1</strong>.</li> |
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</ul> |
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</section> |
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<section> |
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<h3>REST: Verbos/Ações</h3> |
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<p>Ações sobre os recursos são indicadas pelo <i>verbo HTTP</i>:</p> |
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<ul> |
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<li><code>GET</code>: Recupera recursos;</li> |
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<li><code>POST</code>: Cria recursos;</li> |
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<li><code>PUT</code>: Altera (update) recursos;</li> |
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<li><code>DELETE</code>: Apaga recursos;</li> |
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<li><code>PATCH</code>: Altera recursos.</li> |
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</ul> |
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</section> |
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<section> |
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<h3>REST: Verbos</h3> |
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<table border="0"> |
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<tr> |
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<th> </th> |
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<th>Base recurso</th> |
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<th>Recurso específico</th> |
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</tr> |
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<tr> |
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<td><strong><code>GET</code></strong></td> |
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<td>Todos os elementos do recurso</td> |
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<td>Dados do recurso específico</td> |
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</tr> |
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</table> |
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</section> |
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<section> |
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<h3>REST: Verbos</h3> |
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<table border="0"> |
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<tr> |
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<th> </th> |
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<th>Base recurso</th> |
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<th>Recurso específico</th> |
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</tr> |
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<tr> |
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<td><strong><code>POST</code></strong></td> |
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<td>Cria um recurso novo</td> |
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<td>Não usado, mas poderia criar um recurso com a cahve indicada</td> |
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</tr> |
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</table> |
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</section> |
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<section> |
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<h3>REST: Verbos</h3> |
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<table border="0"> |
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<tr> |
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<th> </th> |
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<th>Base recurso</th> |
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<th>Recurso específico</th> |
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</tr> |
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<tr> |
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<td><strong><code>PUT</code></strong></td> |
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<td>Não usado</td> |
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<td>Ataliza o registro inteiro do recurso</td> |
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</tr> |
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</table> |
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</section> |
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<section> |
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<h3>REST: Verbos</h3> |
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<table border="0"> |
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<tr> |
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<th> </th> |
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<th>Base recurso</th> |
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<th>Recurso específico</th> |
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</tr> |
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<tr> |
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<td><strong><code>DELETE</code></strong></td> |
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<td>Não usado, mas poderia apagar todos os recursos</td> |
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<td>Apaga o recurso</td> |
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</tr> |
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</table> |
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</section> |
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<section> |
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<h3>REST: Verbos</h3> |
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<table border="0"> |
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<tr> |
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<th> </th> |
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<th>Base recurso</th> |
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<th>Recurso específico</th> |
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</tr> |
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<tr> |
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<td><strong><code>PATCH</code></strong></td> |
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<td>Não usado</td> |
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<td>Atualiza campos específicos do recurso</td> |
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</tr> |
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</table> |
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</section> |
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<section> |
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<h3>REST: Exemplos</h3> |
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<ul> |
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<li><code>GET /user</code>: Retorna todos os usuários do sistema.</li> |
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<li><code>POST /order</code>: Cria um novo pedido.</li> |
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<li><code>DELETE /user/1/order/2</code>: Apaga o pedido 2 do usuário 1.</li> |
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</ul> |
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</section> |
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</section> |
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<section> |
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<section> |
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<h2>De volta ao REST Framework</h2> |
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<img src="_images/tumblr_n6qbpoBDVX1rbyj0do1_500.jpg" alt=""/> |
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</section> |
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</section> |
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