September 2024
Intermediate to advanced
198 pages
4h 39m
Spanish
Content preview from Aprender GraphQL
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Capítulo 4. Diseñar un esquema
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GraphQL va a cambiar tu proceso de diseño. En lugar de considerar tus API como una colección de puntos finales REST, vas a empezar a considerar tus API como colecciones de tipos. Antes de poner en marcha tu nueva API, tienes que pensar, hablar y definir formalmente los tipos de datos que expondrá tu API. Esta colección de tipos se denomina esquema.
Schema First es una metodología de diseño que pondrá a todos tus equipos de acuerdo sobre los tipos de datos que componen tu aplicación. El equipo de backend tendrá una idea clara de los datos que necesita almacenar y entregar. El equipo del frontend tendrá las definiciones que necesita para empezar a crear interfaces de usuario. Todos tendrán un vocabulario claro que podrán utilizar para comunicarse sobre el sistema que están construyendo. En resumen, todo el mundo puede ponerse a trabajar.
Para facilitar la definición de tipos, GraphQL viene con un lenguaje que podemos utilizar para definir nuestros esquemas, llamado Lenguaje de Definición de Esquemas, o SDL. Al igual que el Lenguaje de Consulta GraphQL, el SDL de GraphQL es el mismo independientemente del lenguaje o marco que utilices para construir tus aplicaciones. Los documentos de esquema GraphQL son documentos de texto que definen los tipos disponibles en una aplicación, y que luego utilizan tanto los clientes como los servidores ...
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