all: implement API for online transfer inquiry

The RtolInquiry method get the information of the name of the account
owner of the transfer destination.

After getting this information, customers can determine whether the
purpose of such a transfer is in accordance with the intended or not.
If appropriate, the customer can proceed to the transfer process.

Ref: https://docs.duitku.com/disbursement/en/#transfer-online

1 files changed, 12 insertions, 4 deletions

diff --git a/request.go b/request.go
index 043a414..b446b32 100644
--- a/request.go
+++ b/request.go
@@ -7,19 +7,27 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
+	"strconv"
 	"time"
 )
 
 // request define common HTTP request fields.
 type request struct {
-	UserID    string `json:"userID"`
-	Email     string `json:"email"`
+	// Merchant email, filled from ClientOptions.Email.
+	Email string `json:"email"`
+
+	// Hash of some fields in the request along with its ApiKey.
 	Signature string `json:"signature"`
-	Timestamp int64  `json:"timestamp"`
+
+	// Merchant ID, filled from ClientOptions.UserID.
+	UserID int64 `json:"userId"`
+
+	// Unix Timestamp in milliseconds.
+	Timestamp int64 `json:"timestamp"`
 }
 
 func createRequest(opts ClientOptions) (req request) {
-	req.UserID = opts.UserID
+	req.UserID, _ = strconv.ParseInt(opts.UserID, 10, 64)
 	req.Email = opts.Email
 	req.Timestamp = time.Now().UnixMilli()