因此，我认为:

我的实体是否持有/拥有数据?然后RPC:这是我的一些数据的副本，操作我发送给你的数据副本，并返回给我你的结果的副本。

被调用的实体是否持有/拥有数据?然后REST:要么(1)向我展示你的一些数据的副本，要么(2)操纵你的一些数据。

归根结底，这是关于行为的哪一方拥有/持有数据。是的，您可以使用REST语言与基于RPC的系统进行通信，但是在这样做的时候仍然会执行RPC活动。

示例1:我有一个对象，它通过DAO与关系数据库存储(或任何其他类型的数据存储)通信。对于我的对象和数据访问对象(可以作为API存在)之间的交互，使用REST样式是有意义的。我的实体并不拥有/持有数据，而是关系数据库(或非关系数据存储)拥有。

Example 2: I need to do a lot of complex math. I don't want to load a bunch of math methods into my object, I just want to pass some values to something else that can do all kinds of math, and get a result. Then RPC style makes sense, because the math object/entity will expose to my object a whole bunch of operations. Note that these methods might all be exposed as individual APIs and I might call any of them with GET. I can even claim this is RESTful because I am calling via HTTP GET but really under the covers it is RPC. My entity owns/holds the data, the remote entity is just performing manipulations on the copies of the data that I sent to it.

考虑下面的HTTP api示例，该示例模拟餐厅中的订单。

The RPC API thinks in terms of "verbs", exposing the restaurant functionality as function calls that accept parameters, and invokes these functions via the HTTP verb that seems most appropriate - a 'get' for a query, and so on, but the name of the verb is purely incidental and has no real bearing on the actual functionality, since you're calling a different URL each time. Return codes are hand-coded, and part of the service contract. The REST API, in contrast, models the various entities within the problem domain as resources, and uses HTTP verbs to represent transactions against these resources - POST to create, PUT to update, and GET to read. All of these verbs, invoked on the same URL, provide different functionality. Common HTTP return codes are used to convey status of the requests.

下单:

RPC: http://MyRestaurant:8080/Orders/PlaceOrder (POST: {Tacos对象}) REST: http://MyRestaurant:8080/Orders/Order?OrderNumber=asdf (POST: {Tacos对象})

检索订单:

RPC: http://MyRestaurant:8080/Orders/GetOrder?OrderNumber=asdf (GET) 休息:http://MyRestaurant:8080/Orders/Order?OrderNumber=asdf (GET)

更新订单:

RPC: http://MyRestaurant:8080/Orders/UpdateOrder (PUT:{菠萝玉米饼对象}) REST: http://MyRestaurant:8080/Orders/Order?OrderNumber=asdf (PUT:{菠萝玉米饼对象})

示例取自sites.google.com/site/wagingguerillasoftware/rest-series/what-is-restful-rest-vs-rpc

REST最好被描述为与资源一起工作，而RPC更多地是关于操作。

休息 代表具象状态传输。这是一种组织独立系统之间交互的简单方法。 RESTful应用程序通常使用HTTP请求来发布数据(创建和/或更新)、读取数据(例如，进行查询)和删除数据。因此，REST可以将HTTP用于所有四个CRUD(创建/读取/更新/删除)操作。

RPC 主要用于跨不同模块通信，以服务用户请求。 例如，在openstack中，nova、glance和neutron在启动虚拟机时是如何协同工作的。

正如其他人所说，一个关键的区别是REST url以名称为中心，而RPC url以动词为中心。我只是想包括这个清晰的例子表来证明:

---------------------------+-------------------------------------+--------------------------
 Operation                 | RPC (operation)                     | REST (resource)
---------------------------+-------------------------------------+--------------------------
 Signup                    | POST /signup                        | POST /persons           
---------------------------+-------------------------------------+--------------------------
 Resign                    | POST /resign                        | DELETE /persons/1234    
---------------------------+-------------------------------------+--------------------------
 Read person               | GET /readPerson?personid=1234       | GET /persons/1234       
---------------------------+-------------------------------------+--------------------------
 Read person's items list  | GET /readUsersItemsList?userid=1234 | GET /persons/1234/items 
---------------------------+-------------------------------------+--------------------------
 Add item to person's list | POST /addItemToUsersItemsList       | POST /persons/1234/items
---------------------------+-------------------------------------+--------------------------
 Update item               | POST /modifyItem                    | PUT /items/456          
---------------------------+-------------------------------------+--------------------------
 Delete item               | POST /removeItem?itemId=456         | DELETE /items/456       
---------------------------+-------------------------------------+--------------------------

笔记

As the table shows, REST tends to use URL path parameters to identify specific resources (e.g. GET /persons/1234), whereas RPC tends to use query parameters for function inputs (e.g. GET /readPerson?personid=1234). Not shown in the table is how a REST API would handle filtering, which would typically involve query parameters (e.g. GET /persons?height=tall). Also not shown is how with either system, when you do create/update operations, additional data is probably passed in via the message body (e.g. when you do POST /signup or POST /persons, you include data describing the new person). Of course, none of this is set in stone, but it gives you an idea of what you are likely to encounter and how you might want to organize your own API for consistency. For further discussion of REST URL design, see this question.

在HTTP上，它们都只是HttpRequest对象，它们都期望返回一个HttpResponse对象。我认为人们可以继续用这种描述来编码，而不用担心其他的事情。

因此，我认为:

我的实体是否持有/拥有数据?然后RPC:这是我的一些数据的副本，操作我发送给你的数据副本，并返回给我你的结果的副本。

被调用的实体是否持有/拥有数据?然后REST:要么(1)向我展示你的一些数据的副本，要么(2)操纵你的一些数据。

归根结底，这是关于行为的哪一方拥有/持有数据。是的，您可以使用REST语言与基于RPC的系统进行通信，但是在这样做的时候仍然会执行RPC活动。

示例1:我有一个对象，它通过DAO与关系数据库存储(或任何其他类型的数据存储)通信。对于我的对象和数据访问对象(可以作为API存在)之间的交互，使用REST样式是有意义的。我的实体并不拥有/持有数据，而是关系数据库(或非关系数据存储)拥有。

Example 2: I need to do a lot of complex math. I don't want to load a bunch of math methods into my object, I just want to pass some values to something else that can do all kinds of math, and get a result. Then RPC style makes sense, because the math object/entity will expose to my object a whole bunch of operations. Note that these methods might all be exposed as individual APIs and I might call any of them with GET. I can even claim this is RESTful because I am calling via HTTP GET but really under the covers it is RPC. My entity owns/holds the data, the remote entity is just performing manipulations on the copies of the data that I sent to it.