How to upload fies to Knowledge center via Content Service

@sidhantb from where did i fetch the parent folder id

Its as simple as passing inputs in the Data tab of a Smart service. You can get folder id using tointeger(pv!foldervariable).
This is solely your decision your where you want to upload the document. Whichever folder you decide become the parent folder.
Hope this clears your doubt.

ServiceContext sc = ServiceLocator.getAdministratorServiceContext();
ContentService cs = ServiceLocator.getContentService(sc);
Long rulesRootId; rulesRootId=cs.getIdByUuid(ContentConstants.UUID_RULES_ROOT_FOLDER);
Approval approval = null;
String filePath = null;
ContentOutputStream cos = new ContentOutputStream(cs, rulesRootId, approval, filePath);


here i dn't know what to give in approval and what to provide in filepath
and also i m using upload method which returns ContentOutputStream value ...
but upload method isn't showing as it is a method of interface ContentService

don't know how to do

@sidhantb if go back with ur old way that u suggested
how to convert a document of Document(class) Type to output stream ??

@sidhantb @vinodb
when calling the upload method
ContentOutputStream outStream = cs.upload(doc, arg1);//here cs is an instance of content service

for that i have to create and instance of content service
ServiceContext sc = (new ServiceLocator()).getAdministratorServiceContext();
ContentService cs = ServiceLocator.getContentService(sc);
which is described in the documentation

and i got this error
java.lang.NoClassDefFoundError: Could not initialize class com.appiancorp.services.WebServiceContextFactory
\tat com.appian.fileupload.FileUploadServlet.doPost(FileUploadServlet.java:99)

Hi @Shivamg, Any luck or progress made?

@kumar2 no got the concept but some problems are occurring in eclipse code