CODEWITHSUNDEEP
javajax-rs
Senshi
Senshi

Reputation: 413

Jax-RS Response.created(location) for routes with path parameters

I have a REST route to create a resource that uses path parameters.

The answer given here: https://stackoverflow.com/a/26094619/2436002 shows how to easily create a proper location header for the response using the UriInfo Context.

@Path("/resource/{type}")
public class Resource {
    @POST
    public Response createResource(@PathParam("type") String type, @Context UriInfo uriInfo) 
    {
        UUID createdUUID = client.createResource(type);
        UriBuilder builder = uriInfo.getAbsolutePathBuilder();
        builder.path(createdUUID.toString());
        return Response.created(builder.build()).build();
    }
}

However, this includes the path parameters in the received URI, which will not lead to the proper resource.

POST: http://localhost/api/resource/{type} with pathparam type = "system"

will return http://localhost/api/resource/system/123 (123 being the generated id) while the proper URI would be http://localhost/api/resource/123

So, how can I get the proper resource location to return?

Upvotes: 1

Views: 1181

Answers (1)

Paul Samsotha
Paul Samsotha

Reputation: 209072

Yeah, doing it the way in the link, you assume a parent child relationship, where you are posting to a collection endpoint and a child single resource is created. With your use case, this isn't the case. One way you can make it work is to just use UriBuilder.fromResource(). Then just call resolveTemplate() to put in the value for "type".

URI createdUri = UriBuilder.fromResource(Resource.class)
       .resolveTemplate("type", createdUUID.toString()).build();
return Response.created(uri).build();

This will give you http://localhost/api/resource/123

Upvotes: 2

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