Query AEM data using a web service call?

[chetanvajre2014]

We are storing some information in AEM which we want to "read" and display in our internal systems. Can we query AEM via endpoints that are exposed or we just use a .json OOB selector for the nodes.

What is an ideal way to read data in AEM from an external system

[Feike_Visser1]

Have a look here: https://docs.adobe.com/docs/en/aem/6-1/develop/search/querybuilder-api.html

Via REST you can get everything you want in AEM. 

[chetanvajre2014]

But typically the 4502 port is not open for outside world. Our AEM instance in EC2 cloud and we are quering from outside. I am guessing we are only allowed access through dispatcher.

Is that the only way?

[smacdonald2008 · Accepted solution]

AEM supports REST. Write a custom sling servlet that uses QueryBuilder API or JCR SQL to produce a result set. Then have your external system perform a GET request to get JCR data.  The servlet will be on pub instance as well.

[chetanvajre2014]

That makes perfect sense. Thanks 

[Lokesh_Shivalingaiah]

If you are using it internally, we can go with Query but however if it has to be consumed by an external system its better to expose it as a json via a service

[Jörg_Hoh]

The default .json rendition is a good starting point. Everything on top depends pretty much on the requirements you have.

kind regards,
Jörg