Diferencia entre revisiones de «Usuario:Lmorillas/desarrollo web servidor/django/rest»

Revisión de 08:34 19 dic 2013

Qué es REST

• http://en.wikipedia.org/wiki/Representational_State_Transfer

REST (Representational State Transfer) son un conjunto de reglas que clientes y servidores tienen que seguir para comunicarse. Si un modo de comuncación sigue esas reglas se llama RESTful. El protocolo RESTful más famoso es HTTP. En un servicio RESTful una URL idenfica un trozo de información que con el que el usuario actúa. Cada trozo de información es un recurso. A los recursos se accede usando los verbos HTTP:

POST

Crea un recurso.

GET

Lee un recurso

PUT

Actualiza un recurso existente

DELETE

Elimina un recurso

Características

Client-Server

There should be a separation between the server that offers a service, and the client that consumes it.

Stateless

Each request from a client must contain all the information required by the server to carry out the request. In other words, the server cannot store information provided by the client in one request and use it in another request.

Cacheable

The server must indicate to the client if requests can be cached or not.

Layered System

Communication between a client and a server should be standardized in such a way that allows intermediaries to respond to requests instead of the end server, without the client having to do anything different.

Uniform Interface

The method of communication between a client and a server must be uniform.

Code on demand

Servers can provide executable code or scripts for clients to execute in their context. This constraint is the only one that is optional.