How to Export JSON (Business Logic) of multiple components in a page using Sling Model Exporter

[mayank0928]

I am not able export JSON of multiple components in a page using Sling Model Exporter.

If I am using http://localhost:4502/content/test.model.json, then I am getting the simple json of the Page.

If I am using http://localhost:4502/content/test.infinity.json then I am getting the Deep level JSON for all the Node Content.

I basically want to get the JSON for my business logic developed in JAVA, that to be of multiple components lying on the page.

Using @Exporter Annotation. I am able to get the JSON for Individual Component, but I am not able to get that JSON for multiple components.

Would be grateful if anyone could provide the correct solution!

[arunpatidar]

Hi,

You can create exporter for multiple components but when you will access page using .model.json, it will return the JSON response from multiple components

Adobe Experience Manager Help | Understanding Sling Model Exporters in AEM

e.g.

http://localohost:4502/content/my-resource.model.json

[mayank0928]

It will return only the JSON which is stored under the node /content/my-resource/jcr:content/...

But my question is how to Export the JSON of Multiple Components on a particular page that to be of a JAVA Based Logic, not the simple data which you put inside the Dialog.

[mayank0928]

This is JCR Node Structure and via /content/my-page.infinity.json

I am getting a JSON basis of this Node Structure.

JSON Structure on Node Basis!

While on the other hand, a Sling Model Exporter JSON like..

Just like this.. I want to Export the JSON for multiple components made using Sling Model @Exporter lying on the same page.. by simply calling /content/my-page.model.json or something!!

[arunpatidar]

Hi,

Did you try to access your page with model selector? Can you show the response.

[smacdonald2008]

I am not sure this is a possible use case - as discussed in this How To article - JSON is exported based on a single component.

Adobe Experience Manager Help | Exporting Adobe Experience Manager Data Using Sling Model Exporters

If it is possible - i have never seen the code to do so.

[smacdonald2008]

If you look at the Java code in this article - you will notice that data members of the code lineup with component props. So its binding components props to data members. For example:

@Model(adaptables = Resource.class, resourceType = { "weretail/components/content/heroimage" }, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL)

@Exporter(name = "jackson", extensions = "json", options = { @ExporterOption(name = "SerializationFeature.WRITE_DATES_AS_TIMESTAMPS", value = "true") })

public class ModelComponent {

    @Inject

    String title;

    @Inject

    String heading;

    @Inject

    String buttonLabel;

    @Inject

    String buttonLinkTo;

    @Inject

    String fileReference;

    @Inject

    @Named("sling:resourceType")

    String slingResourceType;

    public String getHeading() {

        return heading;

    }

    public String getButtonLabel() {

        return buttonLabel;

    }

    public String getButtonLinkTo() {

        return buttonLinkTo;

    }

    public String getSlingResourceType() {

        return slingResourceType;

    }

    public String getTitle() {

        return title;

    }

    public String getFileReference() {

        return fileReference;

    }

}

Therefore, unless you know the components and its props you want to export, this code will not work.

[mayank0928]

So, is there any possible solution for that? or I need to write a Custom Sling Servlet only? I js wanted to know if there's any solution, otherwise the last possible solution is only to write a Custom Sling Servlet!!

[smacdonald2008]

As you need to bind data members to component props - you cannot really use a Sling Model Exporter as shown in this article. It was really a 1-1 based on a given component. You may want to look at looking at components and reading the props you want and encoding to JSON.

[mayank0928]

I got your point that Sling Model Exporter is just 1-1 based on a given component. but If I want to export the JSON for multiple components specially the Business Logic, So Can you suggest me an API which converts the Sling Node to JSON output.

I mean to say if I can use that API to manually generate the JSON for a given resource path!!

[arunpatidar]

Yes, I checked again its 1-1 for given component, so we can't do /content/page.model.json

You can create servlet with your own selector and simply make a request with model selector to include json response of components inside your servlet. This will probably reduce the code overhead.

[susmithasama8]

Hi Arun Patidar​,

I also have the similar requirement. Can you please help me to understand the solution that you mentioned above.

I also have a site with several pages and each page has 1 or more content fragments on it + some othercomponents.

Now when i request the page ad model.json, I want to hide/remove the unwanted data from my json. How can i achieve this?

Can you please guide me on this?

[arunpatidar]

Hi,

You have to parse again or you need to write your own solution which would convert node data to json.

[mayank0928]

If I will make a Sling Model of Page Component, then it will only export the JSON of that page properties only. It will not work for the components lying under it.