web-services - REST URI 设计 : how update

Question

我有一个 REST URI 的设计问题。

假设我有一个汽车资源(在数据库中映射了一些属性)。 如果我想用另一辆车的信息更新汽车资源，我知道我可以调用

PUT /base_url/api/cars/1

I update the car with id == 1 with the informations in the request body

但是如果我想用 id == 2 的汽车信息更新 id == 1 的汽车呢？ (我只想传递 id，因为副本是由服务器内部处理的) 我如何在休息时设计这种类型的请求？

Answer 1

您应该使用 PATCH 来代替。

The difference between the PUT and PATCH requests is reflected in the way the server processes the enclosed entity to modify the resource identified by the Request-URI. In a PUT request, the enclosed entity is considered to be a modified version of the resource stored on the origin server, and the client is requesting that the stored version be replaced. With PATCH, however, the enclosed entity contains a set of instructions describing how a resource currently residing on the origin server should be modified to produce a new version. The PATCH method affects the resource identified by the Request-URI, and it also MAY have side effects on other resources; i.e., new resources may be created, or existing ones modified, by the application of a PATCH.

• PATCH Method for HTTP

像这样的事情就可以了:

PATCH /base_url/api/cars/1 
{template: {id: 2}}

不要在查询中发送 ID，因为它是 URI 的一部分，而 URI 是目标资源的标识符。