How to get exact response from REST API using groovy script

Hi,

We are calling external REST Api from Oracle Sales cloud to post data into external system using groovy script.

But not getting the exact response body into the response variable.

Code:

def restEndpoint = adf.webServices.Customer_Master

def result

try {

def POST_param =

[

OrganizationName :OrganizationName,

OrganizationDEO_CompanyCountry_c :CompanyCountryList_c,

OrganizationDEO_PaymentContactName_c :PaymentContactName_c,

DUNSNumber :DUNSNumberC,

OrganizationDEO_TaxRegistrationCountry_c :TaxRegistrationCountry_c,

PostalCode :PrimaryAddressPostalCode,

OrganizationDEO_PhoneNumber_c :PhoneNumber_c,

CurrencyCode :CurrencyCode,

OrganizationDEO_EmailforInvoice_c :EmailforInvoice_c,

OrganizationDEO_PaymentContactPhoneNumber_c :PaymentContactPhoneNumber_c,

OrganizationDEO_PartnerOrganizationMember_c :PartnerOrganizationMember_c,

OrganizationDEO_CMR_c :CMR_c,

OrganizationDEO_BillingCommunication_c :BillingCommunication_c,

City :PrimaryAddressCity,

AddressLine2 :PrimaryAddressLine2,