From e2a12d99a8d93e108bb0af3a56ea09ad5a8c7155 Mon Sep 17 00:00:00 2001
From: Arseniy Maximov <localhost@kern0.ru>
Date: Wed, 18 Jul 2018 18:29:19 +0300
Subject: [PATCH 1/3] Add support of incCurrLabel & receipt

---
 src/RobokassaHelper.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/RobokassaHelper.js b/src/RobokassaHelper.js
index 7c06537..a5cb3b8 100644
--- a/src/RobokassaHelper.js
+++ b/src/RobokassaHelper.js
@@ -70,6 +70,16 @@ class RobokassaHelper {
       values.InvId = options.invId;
     }
 
+    // IncCurrLabel.
+    if (options.incCurrLabel) {
+      values.IncCurrLabel = options.incCurrLabel;
+    }
+
+    // Receipt.
+    if (options.receipt) {
+      values.Receipt = JSON.stringify(options.receipt);
+    }
+
     // E-Mail.
     if (options.email) {
       values.Email = options.email;

From 6935604d5891a97998465b58cfdc2b6bea50fb60 Mon Sep 17 00:00:00 2001
From: Arseniy Maximov <localhost@kern0.ru>
Date: Wed, 18 Jul 2018 19:59:22 +0300
Subject: [PATCH 2/3] use receipt in calculatePaymentUrlHash if needed

---
 src/RobokassaHelper.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/RobokassaHelper.js b/src/RobokassaHelper.js
index a5cb3b8..7cc57c4 100644
--- a/src/RobokassaHelper.js
+++ b/src/RobokassaHelper.js
@@ -120,7 +120,8 @@ class RobokassaHelper {
     let values = [
       this.config.merchantLogin,
       outSum,
-      (options && options.invId ? options.invId : '')
+      (options && options.invId ? options.invId : ''),
+      (options && options.receipt ? options.receipt : ''),
     ];
 
     if (options.outSumCurrency) {

From 809d79211accb4758d3786a67ae0b9b0863ebd86 Mon Sep 17 00:00:00 2001
From: Arseniy Maximov <localhost@kern0.ru>
Date: Thu, 19 Jul 2018 01:32:23 +0300
Subject: [PATCH 3/3] encode receipt in calculatePaymentUrlHash

---
 src/RobokassaHelper.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/RobokassaHelper.js b/src/RobokassaHelper.js
index 7cc57c4..bc7aeb1 100644
--- a/src/RobokassaHelper.js
+++ b/src/RobokassaHelper.js
@@ -121,12 +121,15 @@ class RobokassaHelper {
       this.config.merchantLogin,
       outSum,
       (options && options.invId ? options.invId : ''),
-      (options && options.receipt ? options.receipt : ''),
     ];
 
     if (options.outSumCurrency) {
       values.push(options.outSumCurrency);
     }
+    
+    if (options.receipt) {
+      values.push(encodeURIComponent(options.receipt));
+    }
 
     values.push(this.config.password1);