main.go

@@ -371,6 +371,21 @@ func stripeHandlers(g *gin.RouterGroup, provider *database.PaymentEntryProvider,
 }
 
 func wsPayHandlers(g *gin.RouterGroup, provider *database.PaymentEntryProvider, wspayService *wspay2.Service) {
+	g.GET("/initialize/:id", func(c *gin.Context) {
+		entry, err := provider.FetchById(uuid.MustParse(c.Param("id")))
+		if err != nil {
+			c.AbortWithError(http.StatusNotFound, err)
+			return
+		}
+		if entry.State != state.StatePreinitialized {
+			c.AbortWithError(http.StatusBadRequest, err)
+			return
+		}
+		form := wspayService.InitializePayment(entry)
+
+		c.HTML(200, "wspay.gohtml", gin.H{"Action": wspay2.AuthorisationForm, "Form": form})
+	})
+
 	g.GET("success", func(c *gin.Context) {
 		url, err := wspayService.HandleSuccessResponse(c, provider)
 		if err != nil {

makefile

@@ -10,10 +10,10 @@ setup:
 	go get
 
 docker-dev:
-	docker image build -t registry.s2internal.com/opgdirekt/payment-poc/backend:$(VERSION)-dev .
-	docker tag registry.s2internal.com/opgdirekt/payment-poc/backend:$(VERSION)-dev registry.s2internal.com/opgdirekt/payment-poc/backend:latest-dev
-	docker image push registry.s2internal.com/opgdirekt/payment-poc/backend:$(VERSION)-dev
-	docker image push registry.s2internal.com/opgdirekt/payment-poc/backend:latest-dev
+	docker image build -t registry.bbr-dev.info/payment-poc/backend:$(VERSION)-dev .
+	docker tag registry.bbr-dev.info/payment-poc/backend:$(VERSION)-dev registry.bbr-dev.info/payment-poc/backend:latest-dev
+	docker image push registry.bbr-dev.info/payment-poc/backend:$(VERSION)-dev
+	docker image push registry.bbr-dev.info/payment-poc/backend:latest-dev
 	
 
 docker-prod:

providers/wspay/service.go

@@ -6,7 +6,6 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
 	"io"
@@ -78,11 +77,7 @@ func determineState(response StatusCheckResponse) state.PaymentState {
 }
 
 func (s *Service) CreatePaymentUrl(entry database.PaymentEntry) (database.PaymentEntry, string, error) {
-	entry, url, err := s.InitializePayment(entry)
-	if err != nil {
-		return entry, "", err
-	}
-	return entry, url, nil
+	return entry, "/wspay/initialize/" + entry.Id.String(), nil
 }
 
 func (s *Service) CompleteTransaction(entry database.PaymentEntry, amount int64) (database.PaymentEntry, error) {
@@ -164,42 +159,18 @@ func (s *Service) CancelTransaction(entry database.PaymentEntry) (database.Payme
 	}
 }
 
-func (s *Service) InitializePayment(entry database.PaymentEntry) (database.PaymentEntry, string, error) {
-	formattedAmount := fmt.Sprintf("%d,%02d", entry.TotalAmount/100, entry.TotalAmount%100)
-
-	var request = CreateTransaction{
+func (s *Service) InitializePayment(entry database.PaymentEntry) Form {
+	form := Form{
 		ShopID:         s.ShopId,
-		ShoppingCardID: entry.Id.String(),
+		ShoppingCartID: entry.Id.String(),
 		Version:        "2.0",
-		TotalAmount:    formattedAmount,
-		ReturnUrl:      s.BackendUrl + "/wspay/success",
-		ReturnErrorUrl: s.BackendUrl + "/wspay/error",
-		CancelUrl:      s.BackendUrl + "/wspay/cancel",
+		TotalAmount:    entry.TotalAmount,
+		ReturnURL:      s.BackendUrl + "/wspay/success",
+		ReturnErrorURL: s.BackendUrl + "/wspay/error",
+		CancelURL:      s.BackendUrl + "/wspay/cancel",
 		Signature:      CalculateFormSignature(s.ShopId, s.ShopSecret, entry.Id.String(), entry.TotalAmount),
 	}
-
-	httpResponse, err := createRequest(
-		"POST",
-		"https://formtest.wspay.biz/api/create-transaction",
-		map[string]string{"content-type": "application/json"},
-		toJson(request),
-	)
-	if err != nil {
-		return database.PaymentEntry{}, "", err
-	}
-
-	var response TransactionResponse
-	err = readResponse(httpResponse, &response)
-	if err != nil {
-		return database.PaymentEntry{}, "", err
-	}
-	if response.TransactionId == nil {
-		return database.PaymentEntry{}, "", errors.New("received bad response")
-	}
-
-	entry.State = state.StateInitialized
-
-	return entry, *response.PaymentFormUrl, nil
+	return form
 }
 
 func (s *Service) HandleSuccessResponse(c *gin.Context, provider *database.PaymentEntryProvider) (string, error) {

providers/wspay/wspay.go

@@ -1,19 +1,34 @@
 package wspay
 
-type CreateTransaction struct {
-	ShopID         string `json:"ShopID"`
-	ShoppingCardID string `json:"ShoppingCartID"`
-	Version        string `json:"Version"`
-	TotalAmount    string `json:"TotalAmount"`
-	ReturnUrl      string `json:"ReturnURL"`
-	ReturnErrorUrl string `json:"ReturnErrorURL"`
-	CancelUrl      string `json:"CancelURL"`
-	Signature      string `json:"Signature"`
-}
+const AuthorisationForm = "https://formtest.wspay.biz/authorization.aspx"
 
-type TransactionResponse struct {
-	TransactionId  *string `json:"TransactionId"`
-	PaymentFormUrl *string `json:"PaymentFormUrl"`
+type Form struct {
+	// required args
+	ShopID         string
+	ShoppingCartID string
+	Version        string
+	TotalAmount    int64
+	ReturnURL      string
+	ReturnErrorURL string
+	CancelURL      string
+	Signature      string
+
+	// optional args
+	Lang              string
+	CustomerFirstName string
+	CustomerLastName  string
+	CustomerAddress   string
+	CustomerCity      string
+	CustomerZIP       string
+	CustomerCountry   string
+	CustomerPhone     string
+	PaymentPlan       string
+	CreditCardName    string
+	PaymentMethod     string
+	IntAmount         int64
+	IntCurrency       string
+	ReturnMethod      string
+	CurrencyCode      int
 }
 
 type FormReturn struct {

templates/wspay.gohtml

@@ -0,0 +1,35 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport"
+          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>Izradi planćanje</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-9ndCyUaIbzAi2FUVXJi0CjmCapSmO7SnpJef0486qhLnuZ2cdeRhO02iuK6FUUVM" crossorigin="anonymous">
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-geWF76RCwLtnZ8qwWowPQNguL3RmwHVBC9FhGdlKrxdiJJigb/j/68SIy3Te4Bkz" crossorigin="anonymous"></script>
+    <style>
+        h2 {
+            margin-top: 16px;
+        }
+    </style>
+</head>
+<body class="container" style="margin-top: 32px">
+    <h2>Započni proces plaćanja</h2>
+
+    <form id="wspay-form" action="{{.Action}}" method="POST">
+        <input type="hidden" name="ShopID" value="{{.Form.ShopID}}">
+        <input type="hidden" name="ShoppingCartID" value="{{.Form.ShoppingCartID}}">
+        <input type="hidden" name="Version" value="{{.Form.Version}}">
+        <input type="hidden" name="TotalAmount" value="{{formatCurrency .Form.TotalAmount}}">
+        <input type="hidden" name="Signature" value="{{.Form.Signature}}">
+        <input type="hidden" name="ReturnURL" value="{{.Form.ReturnURL}}">
+        <input type="hidden" name="CancelURL" value="{{.Form.CancelURL}}">
+        <input type="hidden" name="ReturnErrorURL" value="{{.Form.ReturnErrorURL}}">
+    </form>
+
+    <script>
+        document.querySelector("#wspay-form").submit();
+    </script>
+</body>
+</html>