Hi @ShaniKumar ,
Can you please identify clearly with the issue is to help you better?
Basically the InvokeHTTP processors allows you to use dynamic invocation using Nifi Expression Language (EL). You can set a flowfile attribute with the intended url before calling the InvokeHttp processor , for example: you can use UpdateAttribute to set the url to attribute name "UrlAttr" and then reference this attribute in the InvokeHttp "Remote URL" property value as ${UrlAttr}. Other InvokeHttp properties allows to use EL to set the value dynamically and so on as long as the property allows it.
Hope that helps.
Thanks