diff options
Diffstat (limited to 'merchant_inquiry.go')
| -rw-r--r-- | merchant_inquiry.go | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/merchant_inquiry.go b/merchant_inquiry.go new file mode 100644 index 0000000..26b8d35 --- /dev/null +++ b/merchant_inquiry.go @@ -0,0 +1,117 @@ +// SPDX-FileCopyrightText: 2023 M. Shulhan <ms@kilabit.info> +// SPDX-License-Identifier: GPL-3.0-or-later + +package duitku + +import ( + "crypto/md5" + "encoding/hex" + "fmt" +) + +// MerchantInquiry define request data for payment using merchant. +type MerchantInquiry struct { + // [REQ] Transaction number from merchant. + // Every request for a new transaction must use a new ID. + MerchantOrderId string `json:"merchantOrderId"` + + // [REQ] PaymentMethod type of payment. + // + // Ref: https://docs.duitku.com/api/en/#payment-method + PaymentMethod string `json:"paymentMethod"` + + // [REQ] Description about product/service on sale. + // + // You can fill in ProductDetails with a description of the product or + // service that you provide. + // You can also insert your store or brand name for more details. + // Then in ItemDetails you can fill in product variants or product + // model details, and other details about the products/services listed + // in the transaction. + ProductDetails string `json:"productDetails"` + + // [REQ] Customer's email. + Email string `json:"email"` + + // [REQ] The name that would be shown at bank payment system. + CustomerVaName string `json:"customerVaName"` + + // [OPT] Additional parameter to be used by merchant. + // If its set, the value must be URL encoded. + AdditionalParam string `json:"additionalParam,omitempty"` + + // [OPT] Customer's username. + MerchantUserInfo string `json:"merchantUserInfo,omitempty"` + + // [OPT] Customer's phone number. + PhoneNumber string `json:"phoneNumber,omitempty"` + + // [OPT] Customer's details. + // [REQ] If PaymentMethod is Credit (DN/AT). + CustomerDetail *CustomerDetail `json:"customerDetail,omitempty"` + + // [OPT] Details for payment method. + AccountLink *AccountLink `json:"accountLink,omitempty"` + + // [OPT] Detail of product being payed. + // [REQ] If PaymentMethod is Credit (DN/AT). + // + // The total of all price in ItemDetails must exactly match the + // PaymentAmount. + ItemDetails []ItemDetail `json:"itemDetails,omitempty"` + + // [REQ] Amount of transaction. + // + // Make sure the PaymentAmount is equal to the total Price in the + // ItemDetails. + PaymentAmount int64 `json:"paymentAmount"` +} + +// merchantInquiry contains internal fields that will be set by client +// during Sign. +type merchantInquiry struct { + // [REQ] A link for callback transaction. + // Default to ClientOptions.MerchantCallbackUrl. + CallbackUrl string `json:"callbackUrl"` + + // [REQ] MerchantCode is a project that use Duitku. + // + // You can get this code on every project you register on the + // [merchant portal]. + // Default to ClientOptions.MerchantCode. + // + // [merchant portal]: https://passport.duitku.com/merchant/Project + MerchantCode string `json:"merchantCode"` + + // [REQ] A link that is used for redirect after exit payment page, + // being paid or not. + // Default to ClientOptions.MerchantReturnUrl. + ReturnUrl string `json:"returnUrl"` + + // [REQ] Transaction security identification code. + // Formula: MD5(merchantCode + merchantOrderId + paymentAmount + apiKey). + Signature string `json:"signature"` + + MerchantInquiry + + // [OPT] Transaction expiry period in minutes. + // If its empty, it will set to [default] based on PaymentMethod. + // + // [default]: https://docs.duitku.com/api/en/#expiry-period + ExpiryPeriod int `json:"expiryPeriod,omitempty"` +} + +func (inq *merchantInquiry) sign(opts ClientOptions) { + var merchant = opts.Merchant(inq.PaymentMethod) + + inq.CallbackUrl = merchant.CallbackUrl + inq.MerchantCode = merchant.Code + inq.ReturnUrl = merchant.ReturnUrl + + var ( + plain = fmt.Sprintf(`%s%s%d%s`, inq.MerchantCode, inq.MerchantOrderId, inq.PaymentAmount, merchant.ApiKey) + plainmd5 = md5.Sum([]byte(plain)) + ) + + inq.Signature = hex.EncodeToString(plainmd5[:]) +} |