Calling Parameter Value from URL level to Content modifier in CPI

Hi All,

I have the requirement , The dynamic value will be coming in URL(Parameter) that value i need to call in content modifier level. i'm looking for camel expression how to call the parameter value from URL to content modifier.

For example: I'm getting a sales oder number in URL. that sales order i need to call in Content modifier based on that i will pull the data from another system.

Thanks in advance.

Best Regards,

Rohit