CQ calling REST Service

[Sudhin_Baru]

Hi,

 Is there any article/post which can guide me with CQ calling rest service to get JSON data back?

I see the below is CQ calling web service. Something similar?

http://scottsdigitalcommunity.blogspot.com/2012/05/creating-adobe-cq-bundles-that-consume.html

Thanks,

Sudhin

[smacdonald2008]

I have expedited this community article -- i will post this article early next week. Maybe even on Mon or Tues. It will show how to build a Restful service within CQ and display the results in a page component. I will post the link on this thread once done. 

[smacdonald2008 · Accepted solution]

A new article has been created that shows how to perform this use case. In this article, the distance between 2 cities is calculated by invoking a third party Restful web service:

[img]App.png[/img]

To read this article, see http://scottsdigitalcommunity.blogspot.ca/2013/11/creating-adobe-experience-manager.html.

[smacdonald2008]

That use case is on the community article list  - however - it's has not been written yet. That use case is scheduled for early 2014. 

However - to build this -- follow similar steps as the web services one. That is -- create a JAR lib that performs a Restful call to another service/server. Wrap that JAR into an OSGi bundle using an Eclipse plug-in project. Deploy the OSGi and get it into an active state.

Depending on what lib you use - you may have to created another OSGi bundle fragment that contains the Java classes you use and that are not part of CQ -- for example if you use a JSON JAR lib to encode data as JSON. To see a community article that wraps a JSON lib and deploy to CQ within an OSGi bundle -- See:

http://scottsdigitalcommunity.blogspot.ca/2013/06/posting-form-data-to-adobe-cq-using.html

Once the OSGi bundle is active - you can invoke the OSGi that will result in the Restful call being made. Have the OSGi bundle return the data. For example - if the OSGi bundle returns JSON data -- you can display the JSON data in a CQ web page. See the above link for an example of how the page component parsed JSON data and displayed the data in a CQ web page. 

Hope this helps 

[Sudhin_Baru]

Hi Scott,

 Thank you and appreciate your quick turn around time. I've a question though, do we always have to encompass the REST urls in a JAR (Java project <-> OSGI) or is there a way we can directly consume these services from CQ5?

Thanks,

Sudhin

[smacdonald2008]

For best practices -- keep the data operations hidden at the OSGi layer. Let the page components call the OSGi bundle operations and display the data.

However -- having said that  -- you can invoke a 3rd party Restful web service via JavaScript as opposed to Java.