curl -H "Content-Type: text/xml" -k -d "<createTransactionRequest xmlns='AnetApi/xml/v1/schema/AnetApiSchema.xsd'><merchantAuthentication><name>removed</name><transactionKey>removed</transactionKey></merchantAuthentication><refId>5</refId><transactionRequest><transactionType>authOnlyTransaction</transactionType><amount>1</amount><payment><creditCard><cardNumber>4111111111111111</cardNumber><expirationDate>1220</expirationDate><cardCode>999</cardCode></creditCard></payment></transactionRequest></createTransactionRequest>" https://secure.authorize.net/gateway/transact.dll?x_test_request=TRUE