add support for already encrypted passwords

README.md

@@ -165,6 +165,7 @@ func b2CExample()(err error){
 		return
 	}
 	b2c := &mpesa.B2C{
+		EncryptPassword: true,
 		ShortCode:"123456",
 		InitiatorUserName:"testapi115",
 		InitiatorPassword:"Safaricom007@",
@@ -222,6 +223,7 @@ func transactionStatusExample()(err error){
 		return
 	}
 	transactionStatus := &mpesa.TransactionStatus{
+		EncryptPassword: true,
 		PhoneNumber:"254712345678",
 		InitiatorUserName:"testapi115",
 		InitiatorPassword:"Safaricom007@",

mpesa/b2c.go

@@ -25,6 +25,7 @@ type B2C struct {
 	TimeOutCallBackURL string
 	//optional defaults to ""
 	Remarks string
+	EncryptPassword bool
 }
 
 //OK validates B2C
@@ -120,10 +121,16 @@ func (s *Mpesa) B2C(b2c *B2C) (apiRes *APIRes, err error) {
 		return
 	}
 	//encrypt password
-	securityCredential, err := EncryptPassword(b2c.InitiatorPassword, s.Config.Environment)
-	if err != nil {
-		return
+	var securityCredential string
+	if(b2c.EncryptPassword){
+		securityCredential, err = EncryptPassword(b2c.InitiatorPassword, s.Config.Environment)
+		if err != nil {
+			return
+		}
+	}else{
+		securityCredential = b2c.InitiatorPassword
 	}
+
 	payload := &B2CPayload{
 		InitiatorName:      b2c.InitiatorUserName,
 		SecurityCredential: securityCredential,

mpesa/reversal.go

@@ -26,6 +26,7 @@ type Reversal struct {
 	TimeOutCallBackURL     string
 	ResultCallBackURL      string
 	Remarks                string
+	EncryptPassword bool
 }
 
 //OK validates
@@ -137,9 +138,14 @@ func (s *Mpesa) Reverse(r *Reversal) (apiRes *APIRes, err error) {
 		return
 	}
 	//encrypt password
-	securityCredential, err := EncryptPassword(r.InitiatorPassword, s.Config.Environment)
-	if err != nil {
-		return
+	var securityCredential string
+	if(r.EncryptPassword){
+		securityCredential, err = EncryptPassword(r.InitiatorPassword, s.Config.Environment)
+		if err != nil {
+			return
+		}
+	}else{
+		securityCredential = r.InitiatorPassword
 	}
 	amount := float32(math.Round(float64(r.Amount)*100) / 100)