Resources are typically created by sending a POST request to the parent collection resource. This creates a new subordinate resources with a newly generated id. For example, a POST request to /projects might be used to create a new project resource at /projects/123.
In most cases, the design of a so-called RESTful API consists of: defining the resources accessible via HTTP. identifying such resources with URLs. mapping the CRUD (Create, Retrieve, Update, Delete) operations on these resources to the standard HTTP methods (POST, GET, PUT, DELETE)
In this case, we refer to these resources as singleton resources. Collections are themselves resources as well. Collections can exist globally, at the top level of an API, but can also be contained inside a single resource. In the latter case, we refer to these collections as sub-collections.
REST uses various representations to represent a resource where Text, JSON, XML. The most popular representations of resources are XML and JSON.
If you are passing all your parameters on the URL, then probably comma separated values would be the best choice. Then you would have an URL template like the following:
api.com/users?id=id1,id2,id3,id4,id5
api.com/users?id=id1,id2,id3,id4,id5
api.com/users?ids[]=id1&ids[]=id2&ids[]=id3&ids[]=id4&ids[]=id5
IMO, above calls does not looks RESTful, however these are quick and efficient workaround (y). But length of the URL is limited by webserver, eg tomcat.
RESTful attempt:
POST http://example.com/api/batchtask
[
{
method : "GET",
headers : [..],
url : "/users/id1"
},
{
method : "GET",
headers : [..],
url : "/users/id2"
}
]
Server will reply URI of newly created batchtask resource.
201 Created
Location: "http://example.com/api/batchtask/1254"
Now client can fetch batch response or task progress by polling
GET http://example.com/api/batchtask/1254
This is how others attempted to solve this issue:
I find another way of doing the same thing by using @PathParam
. Here is the code sample.
@GET
@Path("data/xml/{Ids}")
@Produces("application/xml")
public Object getData(@PathParam("zrssIds") String Ids)
{
System.out.println("zrssIds = " + Ids);
//Here you need to use String tokenizer to make the array from the string.
}
Call the service by using following url.
http://localhost:8080/MyServices/resources/cm/data/xml/12,13,56,76
where
http://localhost:8080/[War File Name]/[Servlet Mapping]/[Class Path]/data/xml/12,13,56,76
As much as I prefer this approach:-
api.com/users?id=id1,id2,id3,id4,id5
The correct way is
api.com/users?ids[]=id1&ids[]=id2&ids[]=id3&ids[]=id4&ids[]=id5
or
api.com/users?ids=id1&ids=id2&ids=id3&ids=id4&ids=id5
This is how rack does it. This is how php does it. This is how node does it as well...
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