October 2024
Intermediate to advanced
424 pages
11h 44m
Spanish
Content preview from Programar el Internet de las Cosas
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Capítulo 8. Implementación del servidor CoAP
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En los Capítulos 6 y 7, exploramos los fundamentos de la mensajería IoT utilizando el protocolo MQTT para comunicaciones pub/sub. En este capítulo, exploraremos la mensajería IoT utilizando protocolos de solicitud/respuesta, concretamente el Protocolo de Aplicación Restringida (CoAP), que tiene similitudes con el Protocolo de Transferencia de Hipertexto (HTTP), pero fue diseñado para comunicaciones ligeras entre dispositivos.
Al igual que pub/sub, solicitud/respuesta es un término que recoge un tipo de interacción de mensajería entre dos sistemas. Puede concebirse como un protocolo de igual a igual, en el que un cliente envía una solicitud de acción a un servidor para obtener un recurso específico, que el servidor puede aceptar o rechazar. Un recurso es algo que el servidor gestiona. Puede ser un archivo estático (como una simple página web, un videoclip o una imagen), una base de datos u otro sistema empresarial, o una parte de una interacción más dinámica que implica múltiples peticiones y respuestas. En ...
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