REST Backend

[#1]

hi, there is this backend service GET http://IP:port/xyz/v1/921234567890 ( 921234567890 is an msisdn)

pfa flow.txt ive used basic authentication to encode the username and password for the backend and passed it to AssignMessage as backendAuthorization.

now what will i've to do in AssignMessage policy to send 921234567890 to the backend server since this queryparameter is /921234567890 as opposed to v1?msisdn=921234567890.