Hi @renuu 

ListenHTTP also works same way -
Find below sample configuration and how to invoke using curl.

ListenHTTP listens on a specific port (in my case 8889) and a base path ('/curlRequestListener')

Using below curl command from terminal you can post data -

curl -d 'my request data'  http://<nifihostname>:8889/curlRequestListener

'my request data' is the sample data which I am posting to the ListenHTTP processor and same is received in processors and queued as flowfile. 

Received request Flowfile content -