Fraud service is a microservice which has two implementations.
Receives post request from Cristal IP and sends it to the bank client as "Fraud Client Request" after mapping, then receives "Fraud Client Response" from the bank client which is sent back to Cristal IP after mapping into "Fraud Response". 
Receives post request from Cristal IP and sends it to FRAMS(GCP) as "Frams Request" after mapping, then receives "Frams Response" from FRAMS(GCP) which is sent back to Cristal IP after mapping into "Fraud Response"