Calling adapters in “desktop” does not work

Question

Using IBM MobileFirst 7.1

I have created a very simple hybrid project. Then added a very simple java adapter:

@Path("/hello")
public class BrokenAdapterResource {
    @GET
    @Produces("text/plain")
    public String hello() {
        return "Hope keeps man alive....!";
    }
}

and also created a MobileFirst environment: "Desktop Browser web page". I try to call the adapter. When I call it from the "common" it works as expected. However when I call it from "desktop" it does not work:

var resourceRequest = new WLResourceRequest(
        "/adapters/BrokenAdapter/hello",
        WLResourceRequest.GET);



resourceRequest.send().then(
        function(result){
            var data = JSON.parse(JSON.stringify(result))
            var message = data['responseText']
            $("#message").text(message) //Set the value in message div tag              
        },
        function(error){
            $("#message").text(JSON.stringify(error))
        }
    );

In "common" I get the expected: Hope keeps man alive....! . In the "desktop" I always get {"status":200,"responseHeaders":{},"responseText":"undefined","errorCode":"API_INVOCATION_FAILURE","errorMsg":"Unsupported environment","invocationContext":null}

I wonder what if wrong in this case? Is this the right way to call resources?

I have created a sample project that shows this thing https://hub.jazz.net/project/ignacio4d/BrokenProject/overview

Answer 1

Please see the following tutorial: https://developer.ibm.com/mobilefirstplatform/documentation/getting-started-7-1/foundation/server-side-development-category/invoking-adapter-procedures-hybrid-client-applications/

specifically:

MobileFirst applications can access resources using the WLResourceRequest REST API. The REST API works with all adapters and external resources, and is supported in the following hybrid environments: iOS, Android, Windows Phone 8, and Windows 8.

If your application supports other hybrid environments such as BlackBerry, Mobile Web, or Desktop Browser, see the tutorial for IBM MobileFirst Platform Foundation 6.3 .

In other words, Java adapters use WLResourceRequest. Java adapters do not support the Desktop Browser environment. A workaround would be to use JavaScript adapters which support both WL.Client.invokeProceudre and WLResourceRequest , so you can use regular WL.Client.invokeProcedure for the Desktop Browser environment.