How to create a RESTful API using servlet in CQ?

[Jasmine_Liu]

Hi,

I have a sling servlet as below:

@SlingServlet(

        label = "REST API", 

        metatype = true,

        resourceTypes = {"sling/servlet/default"},

        methods =  {"GET"},

        extensions = {"json"},

)

Can I call the servlet using below URL instead of /content/path.json?id=<category_id>

/content/path/<category_id>

this API should get <category_id> to run backend logic and return data.

Any suggestion?

Thanks

Jasmine

[Ojjis]

Hi,
have you looked at this example. It's about getting relational data but you could modify it to something else :)
http://www.lucamasini.net/Home/sling-and-cq5/accessing-relational-data-as-sling-restful-urls
/Johan

[smacdonald2008]

Just to expand on this use case  -- here is a community article that talks about building an AEM service that consumes a 3rd party restful web service, calling the OSGi operation, getting back JSON, and displaying the results in a page component:

 http://helpx.adobe.com/experience-manager/using/restful-services.html

[Ameesh_Trikha · Accepted solution]

Your servlet needs one of the two parameters - resourceTypes or path both will not work for the above scenario as neither your path is fixed nor your resourceType is defined.

A way to achieve it is to use selectors to provide category_id in the path and not use extensions. In your servlet you can extract the selector and have your logic of building the response/data accordingly.

Hope that helps.

Thanks

Ameesh

[bel_evg]

we use smth like this

@Component(immediate = true) @Service @Properties({ @Property(name = "service.description", value = "My Test Service"), @Property(name = "sling.servlet.paths", value = "/bin/myapp/test.json")}) public class TestService extends SlingAllMethodsServlet { public final static String PARAMETER_KEY = "id"; @Override protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException { String id = request.getParameter(PARAMETER_KEY); // your logic below } }

You can call it by

http://mysite.com/bin/myapp/test.json?id=123